A definition of a record producer Ενας ορισμός του μουσικού παραγωγου ηχογραφηματος

Music producer:


A definition:


The person who makes sure the end result sounds correct to the listener's brain.

Analog synthesizers are much like the human voice

There are similarities.


On voice production we have air supply, pulse by the the opening and closing of the vocal chords, frequency spectrum filters by the cavities in our body.


On analog synths we have current supply, square wave, triangular etc production, electronic frequency filters.


The difference is electrons instead of molecules.


General Reference:


Musical Acoustics - Hall

A great part of musical score interpretation is correct intonation to the human brain

Equal temperament is away from this. Fortunately when a good conductor or a good producer, good instruments or orchestra musicians play notes they are intonated by ear, brain. This referenced to bass, it's overtones and the other parts, their fundamentals and their overtones. High notes are stretched by the right amount for psychoacoustic  reasons or brain perception. So the result is symphony to the listener's brain. Feedback from the desired result and what is the sound at any particular instant from the brain of the performers and conductor guide all the body movements continuously (iterating) until the result is harmony. Even 9th chords in the right hands of composers and interpreters sound so nice one is proud to be human.


The Pleiades tuning temperament is an attempt to equal brain perception temperament. It needs additional improvement  to be done. For a Pleiades tuning can be made for each particular scale rather that equal Pleiades temperament being the same for all scales. We all know a C4 for example is a different frequency when the key is C major or, A flat major for example. Pitch perception also depends on intensity.


References:


Musical Acoustics - Hall


Sound and Hearing - S.S Stevens, Warshofsky and the editors of Time-Life books


The Pleiades Tuning - Euroelectron

The more you are involved the more risk is involved

Οςο πιο πολυ δραστηριοποιησαι τοςο το ρίσκο αυξάνει;

An excellent resource on Sennheiser microphone information

Micro-Revue 70-71

http://lcweb2.loc.gov/master/mbrs/recording_preservation/manuals/Sennheiser%20Micro-Revue%2070-71.pdf

The Beyer audio input transformer catalog points out the importance of terminating impedance

The excellent Beyer Dynamic audio input transformer catalog can be found by searching on Google with these words.


http://www.ka-electronics.com/images/pdf/Beyer_Audio_Input_Transformers.pdf


It has excellent information and graphs. And the great part reference code.


What is rare to find in other documents, one can see the importance of not only resistive but capacitive termination to the secondary of the input mic transformer too.


With no capacitive termination the peak reasonance at very high frequency just flies up.


(Having said that, if a transformer is unterminated or terminated with a high load, the reasonance may lead to an interesting sound. Would 40KHz boost lead to more air on a vocal recording as the 20KHz would be lifted up too etc. The Goldfrapp Felt Mountain album used according to Dave in Bristol the Decca EQ which could boost at ultrasonic frefquencies, 40KHz?)


On a previous euroelectron example on recording with ribbon mics stepped up and direct to an electron tube reel to reel recorder the very smooth cymbal sound could be further explained...


The signal pathe is:


Grampian GR1/L 50 Ω mic - Sowter 1:20 step up transformer - 1/2 or so meter of unbalanced cable - Ferrograph series 6 valve reel to reel tape recorder


By necessity the mic input transformers had to be a bit further from the Ferrograph to avoid hum induced to them from the Ferrograph power supply transformers and motors. This small length of terminating cable is a significant capacitance in picoFarads and should have added to the smoothness and excellent treble of the cymbals possibly by taming the ultrasonic reasonance since the input resistance of the Ferrograph is quite high at 1 Megohm.


Caution should be exercised on using the Pleiades K117 JFET prepreamp which has a very very high in Megohm input impedance. The reasonance can be very clearly heard on many transformers unless they are terminated.


The Pleiades V series electron tube prepreamps operating with just a few volts, typical less than 6V, do not have this problem. The electron accelerating resistor from anode to grid (of the order of megohms) lowers the input impedance of the stage to a typical 100KΩ. So great, natural and smooth sound is already there. Low noise too!

The Pleiades single 2N3055 Ionas power amplifier ready in box

The box is a small aluminium cigarette size. Tye components are just the 2N3055 power transistor, a 10KΩ bass biasing resistor, and connectors etc. the speaker is the load collector resistor itself.


It operates of course in class A meaning electrons flowing all the time. Distortion tends to 0 as signal tends to 0 and gradually increases at larger signals. Much like the human ear and many systems in nature which are linear for small signals and gradually overload to compress information. Although the output of this example is much less than 1 Watt it sounds lively, dynamic, sweet, warm, natural, treble extended with deep bass and great punch and alive midrange.


It sounds great but it can be improved.


1. The 9V battery has very small capacity. There is a large voltage drop too. Only 7-8V get to the amp. It lasts for a few songs? Perhaps use li-ion batteries in series inside Bulgin battery holder? Further precautions should be taken with li-ion batteries.


2. The cabling should be changes from thin to thicker. It is a power amplifier. Bypassing a wirewrap wire with a crocodile clip cable made a significant difference. How about silver wire?


3. For optimum impedance maching the speaker should be 40Ω?. 8Ω reduces power output and efficiency. Perhaps using a few small full range 8Ω speakers in series. All speakers close so that they behave as a single large membrane. And everything in a Beolit radio type enclosure? A CD player included in the enclosure?


The amplifier may be called Ionas as Ionas was puzzled as to why 2 speakers should be needed for reproduction.


Mono can sound great.





Listening to a portable radio for example.



Setup, signal,path:


Sony Walkman CD player line out - Pleiades Ionas amplifier - Sony APM speaker

Ain't Nobody - Thompson (songwriter Wolinski) Chords in Bach's figure bass notation

Bach would have been proud.


Listening to Ain't Nobody - Thompson, (Felix remix) to get the feel and then playing on a good piano the chords with the left hand and melody with the right sounds amazing.


Both hands better righter than the middle of the piano keyboard as full chords at low registers sound very confusing.


It is in D minor key ie all notes white except B which is B flat (black key).


In the begining we have D bass with D minor on the right hand. And then D bass with C major on the right hand! Great stuff. How beautiful it sounds.


Then Bb bass with D minor right hand (ie Bb major 7th) and then Bb with C major.


Summary:


D bass   D F A
D bass   C E G
Bb bass D F A
Bb bass C E G


If one is to play the melody with the right hand the left hand would short of need to play both bass and chords, ie all harmony and it could be as:

Remember to play just above middle C
D F A
D E G or D E G A
D F A
D E G A
B D F A (remember B is flat)
B C E G
B D F A
B C E G
D F A

Or in Bach's figured bass notation


D
D 2 4 5
D
C 2 4 5
B7 (the 3rd or 5th are taken too)
B 2 4 6
B7
B 2 4 6
D


You get the idea.


Reference:


Bach Bass Rules adapted from Niedt's handbook or Bach's instructions for 4 part harmony to his scholars in music, Leipzig


http://normanschmidt.net/scores/bachjs-general_bass_rules.pdf

How would a remix of Metamorfoseis - Marina Sous Peau sound like?, Πως θα ήταν ενα remix του Metamorfoseis - Marina Sous Peau;

Ειναι τοςο ωραιο ωςτε το λιγότερο δυνατόν.
It is so good, adding the minimum possible.


Ιςως ενα TR-909 bass drum.
Perhaps a TR-909 bass drum?


Varispeed, λιγο, ενα ημιτονιο ώσπου να γίνει το κοματι Φα μινόρε και με την αλλαγή του voice spectrum formant να γίνει η φωνή ακομα πιο αγγελικη. Οπως το To France - Mike Oldfield.
One semitone varispeed? This changes voice spectrum formants. Making the voice even more fresh like Abba, or To France - Mike Oldfield.


Λιγο echo οπως το Moonlight Shadow, To France - Mike Oldfield
A little echo? Like Moonlight Shadow or To France - Mike Oldfield.


Κατι που να κανει το κοματι ακομα πιο ελκυστικό στο εξωτερικό. Οπως το remix του Felix Jaehn στο Ain't Nobody (Loves me Better) - Jasmine Thompson
A gentle touch such as Felix Jaehn did for Ain't Nobody - Jasmine Thompson

Can't keep a straight face with you

Fresh air creates fresh ideas, Ο καθαρός αέρας δημιουργεί φρέσκιες ιδέες

A simple rule for problems that bother us, Ενας απλός κανόνας για προβλήματα που μας απασχολούν

In 150 years we won't remember anything.


Σε 150 χρόνια (έτη) δεν θα θυμόμαστε τίποτα.


By Mike
Απο τον Μιχάλη

A great way to approach a woman you truly like Ενας καλός τρόπος να προσεγγίσεις μια γυναίκα που πραγματικά σου αρέσει

Ειναι να της πεις οτι σινάφι ομορφη χωρις να περιμένεις τίποτα.


Is to tell her she is beautiful without expecting anything.


By Lampros
Απο τιν Λαμπρο

Horror creates horror, Ο τρόμος δημιουργεί τρόμο

It is interesting how the advertisement on the radio of the coming film where a daughter is murdered for example tries to create the insecurity to the male listener.


Could I be a murderer even by a small chance?


If his believes this false thought then the next time he will try to aproach a female for courting he will be a bit more frightened, reserved, scared. The female will sence that and she will be scared. Of course, she will be even more scared, if she has listened to the same radio program with the lovely song and suddenly then the radio announcer transmitting fear.


So she will go away. The male will feel more alienated from human nature. More scared. More lonely. Next female aproach may be even worse.


She may run.


He may feel a bit more like a potential criminal.


We have positive feedback. Electronic engineering term. The result, the output is fed to the input, increases the input of the amplifying system.


If this vicious circle continues some people may in fact become murderes. Worst case scenario.


So fear creates fear.


The film maker, the advertiser of the film, the radio are not to blame. All they want to do is make money. And there is a lot of money to be made. And outside of them too. The hospital expenses where the victims will go. The funeral costs. How many jobs depend on a murder?,...,The news announcing the murder attracting listeners so that they can advertise better. Newspaper's headlines. More papers sold. Nude everywhere in some other pages of the newspaper so that sexual appetite is channeled. Who's money buys the newspaper?


They are not to blame. It is their job taking your money. good news is you have free will and nobody can force you to buy the newspaper. In fact nobody can force you to do anything if you do not want it too. You cannot get in trouble if you do not want to get in trouble.


It is our job to stop the vicious circle by turning off the radio before the murder film advertisement is on air.


It is our job to have a-aphobia.


We are not murderers. We are human.


Fear does not even exist.


It only exists if you buy the fairytale.


It is up to you to be fearless. Blood has an appealing smell (this is not realized when you watch the horror film). Fear too.


Buy buy fear. Be a good boy. Truth is you do not even exist.


By the way a great way to approach a woman one truly likes is saying to her she is beautiful. Saying this your way without expecting anything in return.


There is nothing better than a man hugging a woman when they both find each other attractive, in body, brain, soul. Everything else (as a modern Hellenic saying goes) are toothpastes.


Or there is nothing better than they laughing together!


Reference:


Enchiridion - Epictetous
https://www.stmarys-ca.edu/sites/default/files/attachments/files/Enchiridion.pdf

Η Κανελινα άκουσε Metamorfoseis - Marina Sous Peau

Χάλασε παλι το ραδιόφωνο της Κανελινας και της υπομονετικής χελώνας. Η Κανελινα εξαλη ήταν έτοιμη να το πετάξει. Η υπομονετική χελώνα είπε να κανουν άλλη μια προσπάθεια!


Το άνοιξε και έκανε ξανα κοληση στο σημείο της γείωσης των ακουστικών που το καλώδιο τους χρηςιμοποιηται για κεραία.


Λειτούργησε!


Καθώς συντόνιζαν ακουστικε το αγγελικό μερος με τα φωνητικά της Marinas Sous Peau (Μαρίνα Σου Πω) απο τον Μελωδια.


Της Κανελινας της άρεσε τοςο πολυ που έβαλε τα κλάματα.
https://m.youtube.com/watch?v=g60so9aoRVM


Η υπομονετική χελώνα σχεδόν λιποθύμισε.


Τρέχει η Κανελινα με δάκρυα στα ματια στους σοφούς γλάρους στην παραλια.


Μόλις το άκουσαν απ' το YouTube δάκρυσαν κι αυτοί.  Αρχισε να τους παρηγορεί η Κανελινα. " Μην κλαίτε, ήρθα να μου εξηγήσετε γιατι ειναι τοςο ωραιο".


Οι σοφοί γλάροι πανω στον βράχο μεςα στο νερό σκούπισαν τα δάκρυα με τις φτερούγες τους.


Οι σοφοί γλάροι ειπαν οτι ειναι αυτο που αισθάνονται οι ακροατές και ο δημιουργός-οι.


Ομως υπάρχουν στοιχεια που αμέσως ξεχωρίζουν.


1. Η κιθάρα δεν βουίζει στα μπάσα.


2. Τα drums έχουν ηχογραφηθεί με 2 μάλλον μονο μικρόφωνα σε χώρο με ήχοαποροφηςη μπασων, μεσαίων, πριμων που δεν βουίζει. Η τεχνική ηχογραφισης με 2 μικροφωνα ειναι ισως Blumlein απο το όνομα του ηλεκτρονικού μηχανικού της EMI (Electric and Musical Industries) Alan Dower Blumlein που εργαζόταν στο ερευνητικό μετρο CRL (Central Research Laboratories) στο Hayes κοντα στο Λονδίνο. Την ωραια ηχογραφιςη των drums την πήρε η Μαρίνα με πολυ έξυπνη ιδέα απο το YouTube και την έβαλε να επαναλαμβάνεται, (loop η λούπα). Το αναφέρει στην περιγραφή του video της στο YouTube. Πανω σ' αυτη τη λούπα εκτισε αριστοτεχνικά το κοματι. Το κούρδισμα των drums τελειώσει με την τονικοτητα (κλίμακα η σκάλα απο νοτες) του κομματιού που ειναι Μι μινόρε (E minor). Αρχικά λοιπόν αυτα αφήνουν τον εγκεφαλο του ακροατή σε κατάσταση έτοιμη να δεχτεί και τα υπόλοιπα.


3. Η φωνή και τα φωνητικά ειναι αφαλτσα. Αυτο οφείλεται πιθανότατα στην τραγουδίστρια, παραγωγό που ακούει σωστά. Βοηθάει απίστευτα το γεγονός να τραγουδάμε ακουγοντας το κοματι πχ με τα ακουστικά σε χαμηλή ένταση. Οι υψηλές Ακουστικές εντάσεις δημιουργουν στον εγκεφαλο αίσθηση τόνου πιο χαμηλού (προς ύφεση) απο τον πραγματικό. (Sound and Hearing - S.S. Stevens η Ηχος και Ακοη - Εγκυκλοπαιδια Λάιφ - S.S. Stevens)


4. H Τραγουδηστρια δεν φωνάζει αλλα τραγουδάει αβίαστα και ατσιρχτα τις χαμηλές νοτες στις οποίες βρίσκεται η μελωδία. Αυτο ειναι που κανει τη φωνή να ακουγεται δυνατά. [Create Loud Mixes that Sound Great - Sound on Sound]. Αυξάνει ο μέσος όρος του σήματος αφου δεν υπάρχουν τεράστιες αντικειμενικές διακυμάνσεις της δυναμικής περιοχής η της κυματομορφης.


5. Το κοματι με το που ξεκινάει χρηςιμοποιει μεγάλες έβδομες συγχορδίες που κατα λάθος και μάλλον για γραφειοκρατικούς λόγους ειχαν απαγορευτεί στην Ελλάδα. Ετςι ακουγεται προετοιμασμένο ΣΙ στις ψηλές νοτες της κιθάρας ενώ το μπαςο γινεται ΝΤΟ. (Ντο μέχρι Σι ειναι ειναι 7 λευκές νοτες αρα το διάστημα που απέχουν ειναι μεγάλης έβδομης. Η συγκεκριμένη πανέμορφη συγχορδία λέγεται Ντο μεγάλη έβδομη η C major 7th. Ακριβως την ίδια συγχορδία συναντάμε στο Julia - Pavlov's Dog στα φωνητικά, (PLEASE, PLEASE see, how much you mean to me...), στο Nights in White Satin - Moody Blues, (and I love you, yes I LOVE you...). Στο We are the People - Empire of the Sun, (are you gonna LEAVE me now..), στο Beathe - Pink Floyd, (look around and choose your own ground, for LONG YOU LIVE AND HIGH YOU FLY). Η φίλη μας Ντο μεγάλη έβδομη ειναι ΝΤΟ ΜΙ ΣΟΛ ΣΙ, ολα λευκά πλήκτρα. Πως ειναι δυνατόν οι τέσσερις αυτες νοτες μαζι να ακούγονται τοςο ωραια στον εγκεφαλο μας;, θαύμα της ζωής!


Η Κανελινα πετάχτηκε απο τη χαρά της. Στο κανελι κεφαλάκι της πετάχτηκαν προς τα πανω και οι τριχουλες. Το ίδιο και στον λευκό της λαιμό. Της αρέσει πολυ να παιζει με τα τέσσερα ποδαράκια της 4 part harmony, τετράφωνη αρμονία, δηλαδή τέσσερις νοτες μαζι στο Julia - Pavlov's Dog. Στο πιάνο. Στο πανέμορφο σημείο με τα φωνητικά στο δευτερο Please, Please see παιζει με το πιςω της ποδαράκι Ντο και και με τα υπόλοιπα τρεια τεντωμένη Μι, Σολ, Σι πιο ψηλά οπως θα έπαιζε ένας άνθρωπος με το δεξί χέρι. Και στην κιθάρα ειναι πολυ εύκολο να παιχτεί αυτη η συγχορδία. Απλα παίζεται Ντο στην δεύτερη μπάσα χορδή, στην Ρε χορδή παίζεται Μι, και οι λεπτές ειναι ανοιχτές αφου ειναι Σολ, Σι, Μι. Η Κανελινα ομως δυσκολεύεται να παίξει κιθάρα. Δεν μπορεί να την σηκώσει. Ενώ το πιάνο βολεύει. Ανεβαίνει πανω του και παιζει με τα ποδαράκια της 4 part harmony οπως περιγράφεται στο εγχειρίδιο του Bach, Bach Bass Rules που βρήκε στο google. Εκει ανακάλυψε οτι αυτόν τον κώδικα χρησιμοποιούν επιτυχημένες ξεχωριστές συμφωνίες, επιτυχημένα ξεχωριστά pop rock κτλ τραγούδια. Της αρέσει να ανοίγει το ραδιόφωνο και να τζαμαρει ταυτοχρονα με οτι ακουγεται στο πιάνο. Ετςι μαθαίνει τα μυστικά σε πραγματικό χρόνο.


Οι σοφοί γλάροι συνεχίζουν...


6. Το κοματι χρηςιμοποιει 4 κύριες συγχορδίες που επονςλαμβανονται οπως το Careless Wisper - George Michael, Viva la Vida - Coldplay κτλ.


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Great Drum Lessons

School of music online:
https://m.youtube.com/watch?v=rAQzNKxbgGE


A loop of this is used in a lovely Hellenic song:
Metamorfoseis - Marina Sou Peau, Romanos
https://m.youtube.com/watch?v=g60so9aoRVM


The world is such a great place!

Ενα πανέμορφο Ελληνικό τραγούδι

Μεταμορφώσεις - Marina sous peau, Μπονάτσος, Ρωμανός


Ωραια ηχογραφηςη φωνής, double tracking (ντουμπλάρισμα), και αρμονία φωνητικών.


Μπράβο Μαρίνα σου πω. Μας την ειπες.


Ωραια σύνθεση, μουσική του Γιωργου Ρωμανου.

Great modern Hellenic song by Marina Sous Peau, Bonatsos, Romanos

Metamorfosis - Marina sous peau, Bonatsos, Romanos
https://m.youtube.com/watch?v=5ZjvtSqnk1U


Great recording, double tracked vocals and harmonies


Bravo

Μερικά βασικά θέματα υγείας και ασφαλείας που παρακάμπτουν οι ηλεκρονικος μηχανικοί λόγω βιασύνης, άγνοιας, απορρόφησης απο εργασία κτλ

Πολλά απο αυτα έχουν αναφερθει σε προηγούμενα euroelectron posts.


Ιςως αν υπάρχει χρόνος να περιληφθούν τα περισσότερα στο διπλανό euroelectron post στα αγγλικά.


Ενα παραδειγμα ειναι το ποσο σημαντικη ειναι η χρήση προστατευτικών γυαλιων οταν επεξεργαζόμαστε μεταλο (καταςκευη Σασί κουτιού) γιατι μπορεί σωματίδια μετάλλου να πεταχτούν στα ματια.


Άλλο παραδειγμα:
Το να τρώει κανεις τροφές που έχουν φτιαχτεί με φυτικά λιπαρά, φοινικελαιο κτλ που έχουν της φήμη οτι φράζουν τις αρτηριες αίματος. Οι ηλεκτρονικοί μηχανικοί ειναι τοςο απασχολημένοι με το τι πυκνωτή θα βάλουν σε τροφοδοτικό προενισχυτη που ξεχνούν τι μπαίνει μεςα  στο σώμα τους. Διαβάζουμε τα μικροσκοπικά γράμματα με τα συςτατικα σε καθε συσκευασία τροφής και οχι μονο.



Η Αφοβία βοηθάει πολυ.


Reference:

Εγχειρίδιο - Επικτητος
Enchiridion - Epictetous

Some common overlooked health precaution procedures by electronic engineers

Most of these are described in previous euroelectron posts.


If time permits they will be summarized here.


An example is the need of use of protective googles when working with metal electronic construction boxes as metal particles may fly to the eyes.


Another example:
Eating food that contains vegetable oil or fat, palm oil etc which has the reputation of cloging blood arteries is another. Electronic engineers are too busy with choosing the best power supply capacitors for a preamplifier and forget about what goes inside their body. We read the small letters of food ingredients in every food packaging and not only.


A-phobia helps a lot.


Reference:


Enchiridion - Epictetous

Για το πως ηχογραφήθηκε ο φανταστικός ήχος του ηλεκτρικού μπάσου του Paul Mc Cartney, Beatles

Στα διπλανά euroelectron posts με θέμα Pleiades filters and analog drum machine bass drum sound.

On how the Paul Mc Cartley Beatles bass guitar sound was made

On the interview of Geoff Emerick referenced on the previous euroelectron post. The subject of the euroelectron post is bass drum and Pleiades filter in parallel.

Great Soundmaster drum machine pedal bass drum sound by connecting a Pleiades filter

In summary an inductor for bass cut (Pleiades filter) was connected in parallel to cut the heavy bassiness perception to our brain. The bass drum now sounds like a bright and full bass electric bass drum as heard in a greatly produced dance record.


Feeding the Sony TCD5 pro input after the DI really thickens the sound too. No hiss. Just great sound. The simpler the signal path the better.


The sounmaster drum pedals are full analog and hardwired pattern ones. No CPU. Just descrete transistors for great electronic analog drum sounds. Was this the drum machine used as the tempo basis for the drummer to play the Love to Love you Baby - Giorgio Moroder.


Signal path:


Soundmaster black color drum machine pedal - Canford Neutrik DI transformer inside the Neutrik 1/4in jack - Pleiades 82mH (gentle 6 dB per octave low cut filter at a high turnover frequency because of 82mH parallel inductance only) - Sony TCD5 pro without pad - Sennheiser HD580


Fletcher Manson equal loudness curves is the reason the bass drum sounds so great from this process?


As a radio station technician from Epikinonia FM Athens has said. You need to cut the bass so that you can hear deep bass.


Low cutting the bass drum was done on the Beatles records as Geoff Emerick explains. They had to mix for mono. And this was the great way to let the bass guitar shine through.


Reference:


Geoff Emerick interview - Behind the Glass - Howard Massey

Ειναι οι κουραμπιέδες και τα μελομακάρονα ιδιοκατασκευές;

Όμορφο παραδειγμα τραγουδιού επιτυχία με ένατες συγχορδίες

Anywere - Rita Ora
https://m.youtube.com/watch?v=ksdAs4LBRq8


Κατι τέτοια ακούει η Κανελινα και βάζει τα κλάματα και τρέχει στους σοφούς γλάρους στην παραλια.


Της αρέσει.


Επεξήγηση για το πως σερβίρονται εύηχα οι 9ες συγχορδίες στον ανθρώπινο εγκεφαλο στο διπλανό euroelectron post στ' αγγλικά.


Πηγη:


http://normanschmidt.net/scores/bachjs-general_bass_rules.pdf

A great example of prepared 9th chords

The song is written in B minor. This means C and F are sharp (the black keys).


When the singer says Just Take me Anywhere, the notes are just (B) take (B) me (F ie F#) a(F#)ny(E) were (E).


The F sharp is prepared for our brain at the word me. Then at "a" (first letter of anywhere) the bass becomes E. But "a" is still F sharp. So the distance form bass is a 9th interval. And it is a prepared 9th from the previous F sharp appearing in the bar before. It sounds great. And of course the third interval (everything is referenced to the bass) which is the note G is added by some other instrument to further make the "dissonant" chord sound so euphonically great to our brain.


Anywhere - Rita Ora
https://m.youtube.com/watch?v=ksdAs4LBRq8


If you follow through the chorus using a keyboard instrument you will see or hear! that similar techniques are used on the other prepared chords so greatly described by Niedt and Bach many hundreds of years ago.


Pop music can be a great example of great music.


Well done to all those who produce such great music.


A great melody!





Reference:


http://normanschmidt.net/scores/bachjs-general_bass_rules.pdf


Harmony - Piston

Καμια δεν ειναι αρκετα καλη γιατι δεν ειναι σαν εσενα

A great direct to stereo recording from EMI Athens Columbia studios in the 60's

From the great Columbia studio made by the British EMI in Athens.


This example was recorded a little after 1960. The equipment used would have been similar to the ones used by Beatles in Abbey Road studios in London.


Neumann U47 electron tube mics, Telefunken V72 or EMI mod V72s electron tube preamps, EMI BTR2 valve (electron tube) tape recorder, Leak electron tube power amp to drive the Goodmans full range speaker (possibly a Goodman on closed cabinet as the technician Dimitriou cannot recall exactly) inside the echo (reverberation) room and a U47 to pick up the reverb.


This song is written by composer and arranger Mimis Plessas, university graduate in chemistry. He is considered one of the best Hellenic song writers with the ability to arrange in such a brilliant way leaving frequency spectrum space for the voice to shine through. Listen how almost nothing interferes in frequency band with the female vocal.


The key of the song is B minor.


It is written on 9/8. This means each measure contains 9 beats.


The recording was done direct to stereo, (mixing of mics in real time by the sound engineer) in either studio 2 or 3 by EMI Columbia Athens sound engineer Stelios Gianakopoulos. The vocal may had been an overdub.


Rena Koumioti is the singer.


Lyrisist is Lefteris Papadopoulos.


The title of the song is Πρωτη Φορά, meaning First Time.

Proti Fora - Rena Koumioti
https://m.youtube.com/watch?v=k7ZciKttjww


References:


Conversations with Stelios Giannakopoulos, technician Giannis Dimitriou and Mimis Plessas.

Réunion and Iceland viewers added to euroelectron

Welcome!


My pleasure!

Can an electronic musical instrument be made that consumes no electricit?

A piano does not need to be connected to the mains. Yet it sounds loud. And expressive. This is technology.


It uses the energy from the player. The player gets the chemical energy from food. Food gets the energy from the sun.


Can an electronic synthesizer be made where below each key is a small Dynamo. The Dynamo produces a voltage according to how hard or quick the player hits the key.


Each key is connected to an electrical tuned filter, L for inductor C for capacitor. Or has a one transistor LC oscillator.


The voltage from each key drives each oscillator.


Or there may be a white noise generator feeding all keys. And the tuned resonant filter for each note makes the note itself.


The advantage is that each key is independently tuned. So one could have octaves slightly larger than x2 which sound correct to the brain as a good piano does.


Still energy is needed for the white noise generator. Though not much.


And energy is still needed for the amplifier.


All notes could be connected to a JFET high Z in preamp which does not consume much at all.


But still a power amp is needed. Perhaps a Pleiades class A one 2N3055 single ended power amp. But still this consumes 2-3 watts.


Pipe organs do need power supply. In fact Bach was waking up his trusted friends to get to the church to move by their body the air supply so that he could play and all could enjoy.


Reference:


The chronicle of Anna Magdalena Bach

Making interesting sound with the ZX Spectrum

The beep sounds are really nice. Coming directly from the microprocessor as on and offs?


The coin size piezoelectric speaker makes a very bright tweeter.


It's alive.


Using the random generator basic command and sequencing the for the program loop quickly by giving short note durations a very nice robotic sound can be made, like the beginning of R2D2 sounds. It is in the ZX spectrum manual. Thumps up to Sir Clive Sinclair.


One could multiply the frequency variable by a number such that octaves sound correct to listener's brain.  So a Pleiades tuning can be made. (It is well known that exact doubling of frequency is a poor octave to the human brain, see other euroelectron posts for references).

Sampling Tomy Tomytronic 3D electronic games

They give a very lively bright sound. Possibly directly from the CPU, (quick on and offs?). A piezoelectric coin size transducer produces the acoustic wave.


It was sampled to iPad GarageBand. 2 beep beeps were sampled as one file and then played an octave lower.


The note was a highish warm A.


The following chord sequence was used. In Bach figured bass notation...


A
G6
F7


So the A beep produces an G9th and the 3rd of F major 7th on the second and third chords respectively.


Nice futuristic sound.


Signal path:


Tomy Thunderbolt Turbo speaker close to iPad's mic - iPad GarageBand


Reference for figured bass Bach notation code:


http://normanschmidt.net/scores/bachjs-general_bass_rules.pdf

2 interesting Georgio Moroder videos

https://m.youtube.com/watch?v=MTxeZ1HDg34
The Sennheiser MD441 microphone can be seen too


https://m.youtube.com/watch?v=HVfQcSg96pQ

Great 80's studios footage

On YouTube
Great 80's studio and gear footage:
https://m.youtube.com/playlist?list=PLtJmuG5E2ZoQ00KkuCcmsaVpcVrplm6Q4

Depeche Mode with their Teac analog recorder

Depeche Mode with Alan a Wilder Synths Revolution
https://m.youtube.com/watch?list=PLtJmuG5E2ZoQ00KkuCcmsaVpcVrplm6Q4&v=hDgvvuRXtzc

Just 1 mic is seen recording the drums in Giorgio Moroder footage

Giorgio Moroder promo video:
https://m.youtube.com/watch?v=MTxeZ1HDg34
At 0:34


Is this the Electro-Voice used by radio stations? RE-20? Or a similar looking one made by Electro-Voice for instruments?

The Pleiades 1 transistor 2N3055 power amplifier prototype is getting ready

Drilling and finishing a box takes ages.


The box is a small aluminum almost cigarette size.


Inside the box are fitted just a 2N3055 power transistor, an input connector, an output speaker connector, a volume control potentiometer, a 9V battery holder. It should have a fuse holder too.


It operates in class A (electrons flowing all the time), even when there is silence. Extremely low noise. Brilliant lifelike sound

Uncut Salad, Ακοφτη Σαλάτα

It is prepared in seconds flat.


A barley rusk is moist with water. On top of it black resins, goji berry, pistachio nuts etc.


A tomato or some very small ones are just washed and placed in the plate. Same with green pepper etc. Then virgin olive oil, oregano, ground pepper, Ceylon cinnamon etc are added.


Time is not wasted as they are cut while one slowly eats. Like eating and cutting meat in the plate. And no vitamins are lost.


Τα λαχανικά κόβονται στο πιάτο οπως οταν τρώμε κρέας. Ετςι δεν χάνεται πολύτιμος χεονος. Ούτε βιταμίνες.

Τα παντα ξεκινούν απο το να σηκωθείς απο το κρεβάτι

Everything begins by getting off bed

If an egg break make an omelette

If you have a lemon you can make a lemonade.


Reference :


How to,stop worrying and start living - Dale Carnegie

Αν σπάσει ενα αυγό κάνε ομελέτα

Αν έχεις ενα λεμόνι μπορείς να κανεις λεμονάδα.


Πηγη:


Έξω η στενοχώρια - Ντέιλ Καρνεγκυ


How to stop worrying and start loving - Dale Carnegie

A nice soundtrack

From the film Call me by your Name


https://m.youtube.com/watch?v=_Oo4h0iyex4

A great song, Lady Lady - Giorgio Moroder, Joe Esposito

It can also be found in the soundtrack of the film Call me by your Name:

https://m.youtube.com/watch?v=_Oo4h0iyex4

Begins at 28:46

A nice new song

Mystery of Love - Sufjan Stevens
https://m.youtube.com/watch?v=4WTt69YO2VI


Nice Use of banjo, major 7th chords, double tracked vocals.

Sweating and health ιδρώτας και υγεία

Your own risk.
Με δικη σας ευθύνη.


Does it help get toxins out of the body?
Βοηθάει να φεύγουν οι τοξίνες από το σώμα;


Sleeping inside a warm sleeping bag and sweating like having fever may make one healthy very quickly after feeling ill. Αν κοιμηθεί κανεις μεςα σε ζεστό υπνόσακο και ιδρώσει σαν να εχει πυρετό φαινεται οτι γινεται υγιής ενώ πριν αισθανόταν άρρωστος.

Sea swimming just a bit in winter Κολυμπωντας λιγο στη θαλαςςα το χειμώνα

Your own risk. Με δικη σας ευθύνη.


People that do almost never get ill.
Όσοι το κανουν σχεδόν ποτε δεν αρρωσταίνουν .


And it has been seen that if one has fever and swims a bit, it's gone the same day.
Και εχει παρατηρηθεί αν κάποιος εχει πυρετό και κολυμπήσει ελάχιστα του φεύγει την ίδια μέρα.

Inurement of body...

with a little sun and wind.


What could be simpler?


And one would never get ill.


Reference


Προληπτική Ιατρική - Γιάγκος Καραβης
(Preventive Medicine - Giangos Karavis)

Σκληραγώγηση του σώματος...

Με λιγο ήλιο και αέρα.


Τι πιο απλό.


Μετα δεν ξαναρωσταινεις.


Πηγη:


Προληπτική Ιατρική- Γιάγκος Καραβης

Should we be awake before dawn?

Light gradually fades in.


Very soft start.


Hapiness from sun UV.


Therefore good ideas.


The above may mean we have to sleep after sunset.


Electricity and light has changed much of this. It is not electricity. It is how we use it.


One can almost feel the high frequency (high energy quantum) photons penetrating the body around sunrise.

The Pleiades assets

Audio Generators
Hewlett Packard 205AG 301-10518


Books
Elements of Sound Recording - Frayne, Wolfe
Musical Acoustics - Donald Hall
The Feynman Lectures in Physics
Sound and Hearing - Stevens, Warshofsky
Instructions of J.S.Bach to his scholars.., (Bach Bass Rules)
Applied Electronics - T. S. Gray - MIT
Electronics, a systems approach - Neil Storey
Radio Tubes - Aisberg, Gaudillat, Deschepper


Headphones
2x Sennheiser HD-580


Headphone Amplifiers
Pleiades Electra 1
Pleiades Electra 2


Loudspeakers
1x Philips AD5046N


Microphones
Electro-Voice RE15
Electro-Voice RE16
2x Grampian GR1/L
Grampian DP4/L
Sennheiser MD211 N s/n 5646
Sennheiser MD441 U3 s/n 07255


Microphone Preamplifiers
Pleiades V6 (head amp)
Neumann U47 clone (head amp)
EMI RS61 No 58033A
EMI RS61 No 58023N
Telefunken V72 Nr.1239


Power Amplifiers
Pleiades 2N3053 mono


Piano
Pleyel model 9, 1921?, sn 171076


Pleiades Filters
100Hz
386Hz
...


Reel to reel


Ferrograph series 6, 634 converted to 632 2 track stereo, sn 6/51311
Uher 4200 Report Stereo
Uher 4200 Report Stereo
Sears Silvertone 5240


Soldering Irons
Ersa

...


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A great book on audio engineering

Audio Cyclopedia - Tremaine


Great schematics on inductor passive EQ is one of the many elegant surprises of this classic book,

A simple way to increase vocal high frequency content without an EQ

Singing softly.


A deeper proximity compensating Pleiades filter may have to be used as the low frequency content relative to mid is increased too when we sing softly.


Another way to increase HF is singing to an omnidirectional mic on axis, rather than at an angle, (pressure doubling effect).

Increasing the high frequency responce of full range speakers

By using a single ended class A power amplifier which has a highish output impedance. We take advantage of the fact the the impedance of the speaker (because of inductance) increases at HF and so the voltage drop at the amplifier's terminals is reduced.


Or using an inductor in series with a resistor?


Or an L in series with C circuit to reduce mid content?


Sensitivity decreases but the speaker could become much more great. Paper cones have the advantage of natural sound.


How would such an arrangement sound with the Pleiades 1 transistor power amplifier?


Or just one electron tube Pleiades power amplifier, eg EF183.


Examples of bass equalized speakers are Beolit mono radios, JVC 9425W portable mono cassette radios etc.


Can this principle be used together with HF extension.


The objective is making the sound correct to listener's brain.


Taking into account the lower SPL of a low power amp but of great quality and smoothness such as class A amplifiers.


Another way of increasing treble is by generation of secondary overtones etc by such amplifiers when they are generously driven. They do that softly not abruptly as they do not employ negative feedback.


While making the EQ, one could use the Alan Parsons test CD on warbled tones and an SPL meter.


Reference:


Flat frequency responce from singer's vocal chords to listener's brain - Loye, Morgan - Journal of Motion Pictures Sound Engineers

Increasing the high frequency responce of ribbon microphones

On the next after next euroelectron post.

Shelving Pleiades Filters

On the next euriekectron post.

A minimal signal path shelving high frequency filter

In the referenced book Alan Parsons says he likes to boost vocals shelving at 10KHz, 14KHz etc.


It seems possible to build a passive 2 components variable shelving filter.


Just one inductor L (with taps if needed) and a variable resistor in series.


In fact this variably attenuates everything else, subtractive EQ.


Like an MD421 filter but at a high turnover frequency?


In fact one could connect 2 such filters in parallel. One for the bass reduction. The other for all reduction except the high frequencies.


So in fact 2 variable Pleiades filters, one with a very high frequency turnover implemented by a snall value of inductance, made by a few wound turns on a toroidal or ring core.


(A Pleiades filter for bass proximity compensation followed by a Pleiades filter of high frequency turnover.)


In Elvis Presley times HF might have been added not only by EQ but by the generating overtones of electron tube preamplifiers in class A.


Or additionally by the singer singing further away from the proximity compensated mic thereby further reducing bass and mid content.


Or by the fact that the singer may sing softly. When we sing softly we generate more HF and bass content (voice effort curves).


A complicated subject but a subject that can be mastered. The reader is referred to the classic Loye, Morgan paper describing flat frequency responce not from mic to speakers but from singer's vocal chords to listener's brain.


The Olson (acoustical director of RCA) paper on LF and HF EQing ribbon microphones using inductors inside the ribbon is referred too.


References:


Behind the Glass - Howard Massey


Sound pictures recording and reproducing characteristics - Loye, Morgan - JSMPE


Ribbon Velocity Microphones - Harry F. Olson - JAES

Analog simulation of analog magnetic tape recording part 14

If a saturating interstage transformer is used it had better saturate with signal rather than DC.


So...


If 2 tubes are used in balanced push pull then the DC component will be canceled.


We have anyway to use an input transformer after the microphone so if the secondary has a center tap phase spliting is already there...


In other words, we might...


Use the following signal path:


Mic - step up transformer - push pull EF183 or K117 JFET - minimum iron output transformer (interstage) to simulate magnetic tape saturation - then for inststeneous playback an electron tube stage with for example 70μs de emphasis network.


Although any second harmonic distortion generated by the tubes will be canceled by the balanced push pull circuit...the transformer core is generously fed and at larger signals will exhibit magnetic saturation. So 2nd, 3rd harmonic etc will be generated like real instruments when they are played loud. This is produced by the waveform becoming gradually peak limited. So we have a limited small objective signal that will fit the A to D conversion and at the same time a subjectively loud signal to the listener's brain.


The idea is to use a less iron as possible.


Thus topology has also the option of automatic gain control by feeding the side chain rectified signsl to the centre tap. See Altec or RCA compressor limiter schematics.


In fact the circuit is very similar to the front end of the RCA BA-6A limiter. The 6SK7 electron tubes behave similarly to the EF183. And they too can be battery operated at a very low anode (plate) voltage. The trick is to connect the cathodes to ground (-) and applying a positive grid electron acceleration bias from Vb to the grid circuit through a high Megohm resistor. This bias neutralizes the self assumed negative grid bias created by electron thermally escaping the cathode.


Thus we can have a healthy 0.5mA anode current at a typical Vb of only 9V?.


The noise is extremely low. Possibly the lowest that may be so far achieved with electron tubes or any device?


The cathodes can be DC heated from the same battery. And underheated as inside the Neumann U47 electron tube prepreamp.


The above configuration should be great for any mic, even a ribbon of low output.


References:


Tubes vs Transistors, is there an audible difference? - Russel O. Hamm- JAES


On preserving the transconductance of electron tubes at an anode potential as low as 3V - euroelectron


Analog simulation of analog magnetic tape recording, other parts - euroelectron

Total euroelectron views will soon reach 35000

Thank you !

Ireland is 2nd on euroelectron views this week

Γιατι ακουγεται τοςο καθαρά και ομορφα η φωνή του Έλβις Πρίσλεϊ (Πρεσλι προφέρεται) Elvis Presley

Στο διπλανό euroelectron post με τίτλο a great example of Elvis...

A great example of Elvis voice sounding correct to listener's brain

Can't help falling in love - Elvis Presley


It was played today by Hellenic radio and listened through the great Sanyo M-G32 80's Walkman radio and Sennheiser HD580 studio quality reference headphones.


It was very evident that there was not any low frequency band content that sound boomy or unnatural to listener's brain.


How was it done?


Possibly by having great bass (membrane?) absorbers in the studio.


By using a great RCA 44 or 77DX ribbon or Electro-Voice RE15 moving coil microphone? No matter which mic was used they all have the option of an inductor in parallel with the mic's output (Pleiades filter) to cut proximity and more perceived bass to listener's brain.


References:


Aiming for flat frequency responce from singer's vocal chords to listener's brain, Sound Picture recording and reproducing characteristics - Loye, Morgan - Journal of motion Picture sound engineers


http://realgearonline.com/thread/1324/sm58-studio-vocal-mic-love?page=2

S and M play

Would a theatrical play be possible with just 2 actors as follows?


The woman has the man tied up to a chair for the whole length of the play.

Ιςως ο ευκολότερος τρόπος να μάθουμε μουσική

Στο διπλανό euroelectron post στ' αγγλικά.


Τα παντα ορίζονται απο τις λευκές νοτες. Ειναι μονο 7, Ντο Ρε Μι Φα Σολ Λα Σι.


Η βαςη ειναι οι 7 συγχορδίες με τις οποίες μπορούμε να παίξουμε σχεδόν οτιδήποτε.


Ντο Μι Σολ
Ρε Φα Λα
Μι Σολ Σι
Φα Λα Ντο
Σολ Σι Ρε
Λα Ντο Μι
Σι Ρε Φα


Οτιδήποτε απο συμφωνία, ποπ τραγούδι, ροκ μπαλάντα...


Το αν μια νότα θα ειναι διεση η ύφεση εξαρτάται απο την κλίμακα με την οποία ειναι γραμμένο το κοματι.


Ta παντα αναφέρονται στο μπαςο η βαση. Πχ Φα7 σημαίνει Φα μπαςο με Λα Ντο Μι.


Ο κώδικας μπορεί να ειναι πιο εκλεπτυσμένος απο το απλο 1 3 5.


Παραδειγμα το Just Hold Me - Maria Mena


O κώδικας της πρώτης συγχορδίας του Just Hold Me ειναι Λα9.


Αρα Λα μπαςο και συγχορδία Ντο Μι Σι αφου το Σι ειναι 9 λευκές νοτες πανω απο το μπαςο.


Μπορούμε να παίξουμε οποιο Σι μας αρέσει με οποιοδήποτε όργανο. Όπιο Ντο μας αρέσει με οποιοδήποτε όργανο κτλ.


Ζωγραφίζουμε με ήχο.


Πηγη:


Το εγχειρίδιο του Μπαχ προς τους Μαθητές του:


Bach Bass Rules


http://normanschmidt.net/scores/bachjs-general_bass_rules.pdf


Προ ερχεται απο βιβλίο που έδωσε ο μηχανικος μουσικός Niedt στον Μπαχ.

Possibly the simplest way to learn music

Everything is referenced to the white keys.


The notes are seven (do, re, mi, fa, sol, la, si) or C, D, E, F, G, A, B. With just those 7 notes almost everything is made of or composed, a symphony, a pop song, a tango, a rock ballad...


All one needs to remember is the harmonic triad from which all 7 chords are derived. The harmonic triad has the code 1.3.5, 1 being the bass. So...
All the basic chords on our planet are derived from:
CEG
DFA
EGB
FAC
GBD
ACE
BDF


With just those 7 chords most of music can be played.


Whether we would have to use flats or sharps will just depend on the scale or key on which the song or symphony is written.


Examples:


The first chord of Yesterday - Beatles
Bass F, chord F A C


The fist chord of Against all Odds - Phil Collins
Bass D, chord D F A, we play Bass D# chord D#, F#, A# since it is written in D sharp minor which has all those sharps, #s.


Everything is referenced to the bass or base. Chords are constructed from the default 135 code.


But ingenious music can have any other code or numbers above the bass.


For example:


The first chord of Against all Odds in more detail is D7. This means we also take the seventh note above the bass too. By counting the white notes this is C.
So we have :
D# bass, F#, A#, C#


The first code on Just Hold Me - Maria Mena is A9
So we have:
A bass with A C E B, all white notes since the key is A minor


On Symphony 40 in G minor - Mozart the first 2 chords are:
G bass G, B, D.
So we have G bass G, Bb, D since the key G minor has the B flat or Bb.
The second chord is G246 so we have
G bass with A C Eb. E is flat since the G minor key has any E flat. But is memory is correct the E note is omitted by Wolfgang.



Reference:


Bach, Niedt Bass Rules or instructions of Johann Senastian Bach to his scholars in music (source appendix of Spitta's biography of Bach).


http://normanschmidt.net/scores/bachjs-general_bass_rules.pdf

Πρωτα συμπεριφερεσαι σαν να εισαι ο πιο πλουσιος-α και μετα ηδη εισαι

First you act as you were the richest man in the world and then you already are

We are not responsible for our choices?

We are responsible for our ignorence.




by Michalis

Δεν ευθυνομαστε για τισ επιλογες μας

Ευθυνόμαστε για την αγνοια μας.












από τον Μιχαλη

I do not pity you

You are not to be pitied




from Lambros

Δεν σε λυπαμαι

Δεν εισαι για λυπηση




Από τον Λαμπρο

Tape Backing Patent

http://www.richardhess.net/restoration_notes/USP5236790.pdf

Important information on degrading magnetic recording tapes

http://richardhess.com/notes/formats/magnetic-media/magnetic-tapes/analog-audio/degrading-tapes/

How is millefeulle pastry for croissants made

To visualize try first with 2 A4 papers on top of each other.


One is the pastry, the other is the best quality milk butter (and not palm oil vegetable fat etc that has the reputation of cloging blood vessels).


Place the 2 papers on top of each other on the table.


Fold in three as you would when folding in 3 an A4 paper to fit the 1/3 size A4 business posting envelopes.


Take the outcome and do again the same. Before doing this with party and butter they have to rest inside the fridge.


Take the outcome and similarly repeat once more.


By Alexandre

The A4 size paper invented by Leonardo da Vinci?

Was it invented by Leonardo da Vinci.?



It has the property to retaining the ratio when it is folded in 2. What is this ratio? Having to do with the golden ratio. A3 looks exactly the same to 2 A4, A2 the same to 2 A3 joined etc.

Online golden ratio hill calculator for women

The golden ratio is when the ratio of the whole to the larger is equal to the ratio of the larger to the smaller.


For humans according to ancient sculpture it would be the ratio of the height/(from feet to navel)=(from feet to navel)/(from navel to head).


Would it be nice if an online calculator existed for the height of shoe hills so that the golden ratio can be satisfied for any woman's body. Would it be a nice marketing tool for shoes?


References:


Golden ratio Wikipedia
https://en.m.wikipedia.org/wiki/Golden_ratio


http://goldenratio.wikidot.com/sculpture

Is Blumlein recording of pop music possible?

Maybe yes.


Please see the previous euroelectron post on random ribbon microphone corrugations.


It is called Blumlein to honor electronic engineer Alan Dower Blumlein who invented so much at the CRL, Central Research Laboratories of EMI, Electric and Musical Industries.

On creating random corrugations to ribbon microphones

It has been tried successfully when re ribboning 2 Grampian 25-50 ohm ribbon microphones. The ones with the grey grill and black grill on the other side. Grampian made in England model GR1/L output impedance 25/50 Ω.


The random corrugations were done by zig zag folding by hand the ribbon sandwiched by its 2 protective papers. And if memory is correct, then it was cut to the long thin ribbon stripe by placing it flat. Breathing was done with folded straw as the extremely light ribbon had the tendency to fly.


Listening now to the recording done before 2000 it seems to blow away anything?


Signal path, setup:


Untreated living room - Gabriel Drums, WLM Organ with Pleiades PCL86 SE class A1 and Pleiades ceiling hung rotating speaker, Yamaha bass guitar with Doublex amplifier and ?4x 8Ω full range speakers mounted on an open panel baffle? - 2 x Grampian GR1/L as Blumlein pair - Sowter 1:20 3104x stepup transformer - Ferrograph series 6 (valve) electron tube reel to reel tape recorder with 1/4 track heads before changing to 2 track stereo heads - BASF 901 studio master 1/4in tape - Tape reproduced from UHER battery powered 4200 stereo with one channel operating - (either to Realistic disco mixer - Sennheiser HD580 or direct to SONY APM-078 speaker)


Sound can be heard coming from both sides of the tape as the UHER is 1/2 track, so one can hear 2 musical pieces at the same time one being in reverse. Interesting sound real and out of this world at the same time, a joy to hear simultaneous cymbals in both time directions at 7.5ips and -7.5ips. The bass definition, warmth, detail, midrange smoothness of the organ, creamy super extended treble of the cymbals is hard to believe.


But it is no wander. It is just 3 electron tubes from the Grampian ribbon mics to the BASF 911 studio master tape.


Speed is 7.5ips.


The musical,piece played is the brilliant Supertwister - Camel with the G7, A7, B7 chord progression.   Since the scale is G Dorian where the B is B flat, it follows that the chords are the brilliant G minor 7th, A 7th, Bb major 7th.


The Grampian mics, the instruments around them, gave an excellent frequency spectrum balance at the relatively high distance from each instrument. It seems the mics are proximity compensated with their internal transformer input inductance exactly for such applications.


Blumlein recording of rock music is possible and if the room was treated with broad band panel absorbers such as the Pleiades absorbers the sound should have been even more direct.

Additional euroelectron viewers from Italy this week

Thank you!

Πως μπορείς να γράψεις την οικονομική κρίση με λίγες κινήσεις

Με δικη σου ευθύνη.


1 πουλάμε οτι δεν χρειαζόμαστε. Στο eBay?


2 απλοποιουμε την πολύτιμη ζωή μας.


3 αγοράζουμε ενα φουςκωτο υπόστρωμα Thermarest Neoair Xtherm και ενα sleeping bag (υπνόσακο) Marmot Lithium με προδιαγραφές comfort στους -12οC . Ετςι μπορούμε να ειμαςτε άνετα ακομα και πανω στο χιόνι. Να κοιμηθούμε σαν πουλάκια σαν στο πιο ακριβό ζεστό ξενοδοχείο. Οχι βαμβακερά εσώρουχα κτλ γιατι ρουφάνε την υγρασία.


4 αν υποθέσουμε οτι βρούμε κάποια που εχει τα κότσια να ακολουθήσει μοιραζόμαστε τις ομορφότερες παραλίες, δάση, κατω η πανω από τ' αστέρια.


5 χωρις φορολογία, εμφια, λογαριασμούς κτλ.


6 τρεφόμαστε με οτι καλυτερο, πχ σουςαμι ολικής, ταχίνι ολικής, μέλι κτλ.


7 ετςι γλυτωνωντας το φοινικελαιο των τυποποιημένων τροφών δεν ξανα αρρωσταίνουμε, ζούμε στο καθαρότερο αέρα (οξυγόνο) με επίπεδο ζωής, αν το φροντίσουμε, ανώτερο και απο βασιλικό. Ενα μικρο φωτοβολταϊκό για ηλεκτρικό ρευμα αλλα τι να το κανεις οταν έχεις την αγάπη σου κατω η πανω απο τ' αστέρια.


Αν το δουλέψεις (εργασία αφορολόγητη σώματος, μυαλού, ψυχής) μπορείς να το φτάσεις σε απιστευτο επίπεδο καθαρότητας, πολιτισμού, ευτυχίας.


Θα προσέξεις αυτούς, τους βαλτους, που μπορεί να έρθουν με ναρκωτικές ουσίες κτλ να στο χαλάσουν. Δεν έχεις να φοβηθείς τίποτα αφου φόβος δεν υπάρχει. Τίποτα δεν μπορεί να σε πειράξει αν δεν το θελεις και εσυ.


Δεν ειναι εύκολο.


Αλλα ιςως ετςι, η με άλλο δικό του τροπο, βρει κανεις ξανα τον παράδεισο χωρις την ιστορία για φόβο, φίδι η μήλο.


Και δεν φταίνε αυτοί που φτιάχνουν το παραμύθι. Ούτε αυτοί που το πιστεύουν;


Αφοβία.


Πηγη:


Εγχειριδιο - Επικτητος

On letting the economic crisis forget you

Your own risk.


Or paraphrasing an Hellenic phrasal verb. ..How to write the economic crisis to your bollocks.
Please visit the next euroelectron post written in Hellenic.


In summary it is bying a world class inflated Thermarest Neoair Xtherm mattress and a Marmot Lithium sleeping bag and making them your home while living in the forest, beach, your chosen paradise.


Reference:


Enchiridion - Epictetous

Interesting notes by Magnetics on the distributed air gap properties of powdered cores

https://www.mag-inc.com/Design/Design-Guides/Designing-with-Magnetic-Cores-at-High-Temperatures

Is there  soft saturation too?


(By the way how would simple iron sound like?)


What would be the best core for the Pleiades analog tape recording playback analog simulator using an interstage transformer to simulate tape saturation. Before it a recording amp. After it a playback amp. All with proper pre emphasis, de emphasis curves to round off instantaneously limited peaks. Increasing average level at the speed of light.


Also for the Pleiades V6 prepreamp with DC carrying output transformer would a ferrite core be more suitable avoiding DC saturation due to the distributed air gap?

The cores used on a pultec are MPM molypermalloy?

Can they be found on Nebraska surplus according to group DIY?

Searching for a demonstration of Pultec EQP-1A

https://m.youtube.com/watch?v=IwrvOGWmK3A


It must have been also used on Back to Black - Amy Winehouse, please do your own search. The microphone was an RCA 77DX by looking at the video of Amy recording.

Ενα βασικό μυστικό για το πως γίνονται οι φωνές στο εξωτερικό, Pultec passive EQ

Pultec EQP-1A


https://m.youtube.com/watch?v=IwrvOGWmK3A


Ενα πιθανό παραδειγμα ειναι στο Back to Black - Amy Winehouse αν ερευνήσουμε σχετικές συνεντεύξεις του παραγωγου Mark Ronson και φωτογραφίες του studio που ηχογραφήθηκε, συνεντεύξεις κτλ. Το μικρόφωνο ειναι το RCA 77DX αν παρατηρήσουμε το βίντεο με την Amy recording.