Changing the direction of Entropy in Music

Changing the direction of tape speed time travel can of cource change the direction of entropy and predicting the future.


This can be heard in Abracadabra - Steve Miller Band, where they recorded with the tape backwards. So the guitar's reverb is heard before it's actual note.


Reference:

The excellent book: Good Vibrations (has a few note on Abba using varispeed as mentioned by their engineer Michael Tretow.


Michael Tretow had been playing with tape (time) machines since a kid and this process had become 2d  life to  him.

How varispeed works

It  is difficult to expand or contract time as this requires relativistic speeds.



However on analogue recording it is fairly easy by changing the speed the magnetic tape moves, a disc record rotates or in the digital domain the sampling rate.


This obviously changes the tempo but it is does something else much more important.


Since this process does not naturally occur in real life, for some reason it changes the timbre (formants?) of the vocals making voices sound younger, sweeter and strangely enough more in tune with the equally pitch shifted backing track.


Varispeed experiments.


1    Listening  to the effect.:
Great examples are:
I have a Dream-Abba (notice how different the studio version sounds from a live version withoutt varispeed.
To France, Moonlight Shadow- Mike Oldfield


2   Playing with it:



Try a record player with speed change adjustment and listen to how it affects the voice quality. Try a record that has been recorded with varipeed and slow down to hear how the original voice of the singer was.while they were tracking.










3   Recording with it.:









Say your song is in Bminor. You record your backing track normally.. Then you slow down the tape travel so it becomes eg Bb or A minor. You sing and record at this lower key. Then tape speed  is brought back to normal so all the song is now in B minor with a fresh young full of energy vocal.


If a tape recorder such a Tascam Porta is not available it can be digitaly done with the software Samplitude which has playback (sample rate) micro speed variation at the playback settings which also works on record.

How to get rid of OCDs

1.  Imagine you are leaving are already down the stairs and you remember you forgot to touch the door handle at the specific point you should.


You are already in a hurry and have to climb up the stairs wasting tune and energy. The extra stress can multiply your OCDs.




All you have to do is bringing the image to your mind (while pausing or carefully going down the stairs) that you are there at the door handle touching it. So you either pause and soon you can do anything with your mind and save time.


2.   Or imagine that there is or has just come a bad thought in your mind and you want to replace it with a good one.. But the good replacement process does not work well at this time of day because of stress etc,
All you gave to do is to say in your language  the word

άκυρο

to cancel the bad thought that came to your mind without the need to replace it with anything.


These 2 hints will hopefully  ave time and possibly teach you that nothing bad will happen and everything in your mind.

Pleiades high cut low pass filter

As Montalk  pointed out a Pleiades filter can be used as a high cut too to make a natural voice.


This is done with a Pleiades filter in series with the signal.


 2 small windings can be wound on a toroidal core for each part of a balanced cable.


 If their orientation is correct they will remove from a high audio frequency to RF and keep the line balanced.


Alternatively just a capacitor can be connected in parallel i.e connected at pins 2 (live), 3 (return) of an XLR adapter.

How to make a Pleiades microphone Filter

To make a Pleiades filter easy one needs a nanocrystalline tape wound core such as a Magnetec 073 or equivalent and some wire.


 It can be wound on a ordinary  ferrite but the number if turns wound have to be many times more for the same cutoff frequency.

A secret to be Healthy

Dry shower, wind shower



Throw every morning all the dust of you body (which is really old cells) with dry hands.


If possible this can be done outdoors on fresh air- wind and the first morning sun full of sterillising UV radiation.


It is fun to watch the dust cloud out of your body in the sun.




Reference


the excellent book in Hellenic,  Preventive Medicine by Karavis

Some important sweetening music industry production techniques

Varispeed

Double tracking:
Recording the same part (e.g. voice) more than once and add the parts together.
Examples are the Beatles, the Beach Boys, Madonna.
A symphony orchestra is doing by definition this as there are many violins playing for example the same melody line simultaneously.



Echo chamber use.


Echo (shifting  in time domain and add)


All subtle techniques in time doamin have a tremendous effect in the frequency domain and perception.

Are negative beings hiding below 20 Hz

There are infinite number of octaves below 20Hz.

20, 20/2, 20/2/2, 20/2/2/2,... i.e.

20, 10, 10/2, 10/4, 10/8, 10/16, ...


Whereas in electromagnetic waves the energy of a photon is proportional to frequency, in acoustic and mechanical vibration waves the penetrating energy is increasing as the frequency is lowered. A10Hz wave with its large wavelength can penetrate easily many walls as you can hear if you live near a night club, or near a railway.


Low frequency and sub audio vibration waves from motors, (fridge, air conditioning, vibration of air ducts coupled to buildings) travel and hug easily a whole building as the wavelength is very large. It is possible that this dramatically affects how people feel if the time exposure is high. The time exposure is usually very high until one decides to move to a new house environment. But your frequency is so lowered by that time, it takes great effort to get away.


A great help can be someone with charisma near you and the great book Fringe Knowledge for Beginners by Montalk (www.montalk.net), or the master fairytale The Little Price by Exupery.. The great tool is aphobia as fear does not exist.


At sub audio frequencies the wavelength becomes huge according to


wavelength = speed of waves in medium / frequency of wave


There seems to be an inverse analogy with photons. There may be a packet of energy, let's call it acouston whose energy is proportional to how low the frequency is.


energy of an acouston = constant x wavelenth


energy of a photon = h x frequency                      (h: Planck's constant)


Additional notes:


At frequency tending to 0Hz the wavelength tends to infinity  and (time) period tends to infinite.


This is our universe, its size and the time it evolves.


Gravity may be a wave of frequency tending to 0Hz.





a great reference for acoustics and structure born travel of sound vibration waves:


Acoustics for radio and television studios, Christopher Gilford

Instantaneous Signal Limiting

The best way to limit an audio signal is possibly pre emphasis (increasing treble, low cut), then clipping, and then (decreasing treble, high cut).


When a clipped signal is high cut, the flat part will be rounded as harmonics are reduced. Pre emphasis ensures a flat frequency response..


This is what is done on vinyl records, tape recording, radio broadcasting processing as taught by Orban.


References::


How guitar distorting amplifiers work, high cutting with a large cone speaker.


Mike Oldfield's interview explaining how he creates his guitar sound.


US Patent 3,703,028 by Markevich, Reduction of Harmonic Distortion

Make the best mixing console on earth

The best way to add 2 signals is with hybrid transformers.


This is how intelligently Hollywood did it.


Nanoperm toroidal cores by Magnetec should make great adding transformers.


Reference:  Elements of Sound Recording, John G. Frayne, Halley Wolfe, John Wiley & Sons 1949

Anybody using euroelectron posts acts at his her own risk

How much OIL is left on earth

Exponential Growth and Doubling Time


One of the most important things we seem not to perceive is the process of exponential growth. We think we understand how compound interest works, but we can't get it through our heads that a fine piece of tisue paper folded upop itself fifty times (if that were possible) would be more than 20 kilometers thick.



to be continued...


Appendix IV  from Hewitt Conceptual Physics excellent book based on A. Bartlett lectures

Pleiades Leslie Speaker

A great way to make a Leslie speaker is to hang an open back speaker and let it move by hand.


The variable acceleration by its cable twisting uses the Doppler effect to make a great sound.


Anybody using this or other posts from euroelectracts at his her own risk.


Reference:   http://www.youtube.com/watch?v=Bmd4NvtCf3g

Pleiades Broadband Absorbers

The Pleiades acoustic broadband absorbers consist of canvas panels backed by roofing felt or other material bass absorber and cotton.


Sean Davies designed the glass fiber quilt roofing felt glass fiber quilt broadband absorber.

The secret of EMI and BBC on absorbing low frequencies

A great way to absorb bass in a room is to use membranes of roofing felt.


As the elastic panel is made to vibrate from lf sound it flexes and the incoming wave is dissipated to heat. It should be best to use instead of roofing felt panels made of linoleum which is odorless. A nice company making linoleum is Tarkett.


Reference: Acoustics for radio and television studios, Christopher Gilford

How to repair a noisy VF14 electron tube for the Neumann U47 microphone

The Hollywood secret on EQing voice

It is a great mistake in music to assume that a voice must be recorded and reproduced with flat frequency response.


To have a natural voice reproduction from the vocal chords of the actor or singer to the brain of the listener, the low and high frequencies must be reduced in order to restore presence.


This is due to 2 reasons.


1    The voice is usualy reproduced at higher volume than original. According to the Fletcher Manson curves the higher intensity makes our brain think there is more low and higher frequency content.


2    A soft speaking voice has a predominance of low and high frequency content than a loud speaking voice.


Both of these human mechanisms important for survival have to be taken into account.


The Pleiades filter is an attempt to implement this curve with just one electrical component.


references:

 p.11, p.59, Elements of Sound Recording, John G. Frayne, Halley Wolfe, John Wiley & Sons 1949


D.P. Loye and K.F. Morgan:  Sound Picture Recording and Reproducing Characteristics, Journal of Society of Motion Picture Sound Engineers, 1939

Making your Korg Triton the Best Worldwide

Our brain requires that a true octave is slightly higher than x2.
http://euroelectron.blogspot.gr/2015/06/octave-stretch.html
http://www.speech.kth.se/prod/publications/files/qpsr/1971/1971_12_1_051-067.pdf


And as J.S.Bach was saying, God is in the details...


Below is the matrix for the Pleiades tuning for the Korg Triton, in cents deviation from equal temperament:

Pleiades tuning for the DX7ii

It is one of the greatest mistakes in music to think that an octave is a doubling of frequency.
http://euroelectron.blogspot.gr/2015/06/octave-stretch.html


http://www.speech.kth.se/prod/publications/files/qpsr/1971/1971_12_1_051-067.pdf


http://www.mmk.ei.tum.de/persons/ter/top/octstretch.html


Below is the matrix for the Pleiades tuning for the DX7ii

Most there is to music making on a few pages by J.S.Bach

When J.S.Bach was around 15, he was given a very important book by a non musician explaining the secrets of music.


This is how it evolved:and handed to Bach's students.


Do not let the title discourage you,  All it means is the Art of Music.


Rules and Instructions for Playing Thorough-bass or accompaniment in Four Parts, made for his Scholars in music by Herr Johann Sebastian Bach, of Leipzig, Royal Court Composer and Capellmeister, also director of the Music and Cantor of the Thomasschule, 1738


ELEMENTARY INSTRUCTION IN FIGURED-BASS.

Cap. I.

OF THE ETYMOLOGY


The word Bassus is derived from the Hellenic βάση, which signifies the root or foundation of a thing. Others derive it from the old Latin word bassus, signifying profundus, deep. By the word taken alone is understood the lowest part in music, or any bass part that produces a deep note, whether that note be sung or played upon a bass viol, bassoon, trombone, or the like.


By the term Figured or General-Bass, however is understood a bass that is played on the organ or clavier with both hands in such a way that all or most of the parts in the music are played generaliter os simultaneously or in general  terms,, together. It is also called Bassus Continuus, or with the Italian termination, Basso continuo, beacuse it continues throughout the piece, even when the other parts pause now and then, although at the present day this Bass itself frequently pauses, especially in works of great ingenuity of construction.


CAP. II.

DEFINITION OF THE TERM.


Figured bass is the whole foundation of the music, and is played with both hands in such a manner that the left hand plays the notes written down, while the right adds in consonances or dissonances, the result being an agreeable harmony in the glory of God and justifiable gratification of the senses; for the sole end and aim of general-bass, like that of all music, should be nothing else than God's glory and pleasant recreations. Where this object is not kept in view there can be no true music, but an infernal scraping and bawling.

CAP. III.

....

CAP.  V.

OF THE HARMONIC TRIAD.

The harmonic triad belongs properly to the subject of composition, but as figured-bass is a beginning of composition, and may even because of  the arrangement of consonances and dissonances , be called an extempraneous composition, made by the person who plays the figured bass, the subject of the triad may be fitly mentioned in this place.   Now if a person who desires to learn the subject can impress it upon his memory, he she may be sure that he has already mastered a great part of the entire art. The harmonic triad is a combination of the third and fifth which is placed above a bass note, and may be constructed on all the notes, and both in the major and the minor--

G    G     A   A   bB  B
E    bE    F  #F    G   G   ...
C    C     D   D   bE   E

And so on through all the notes. This is called Radix harmonica, because all harmony springs from it. And this harmonic...


to be continued...

pleiades electra schematics

CAUTION:    Protect your ears, damage is not reversible.

pleiades electra amplifier

pleiades electra jfet class A headphone amplifier

pleiades electra jfet amplifier schematic

pleiades dipole speakers

1   mount many full range speakers very close together


2   mount the speakers on a panel, baffle, or open back box. use an arc to avoid focusing


3   connect any combination of series parallel to make any impedance


advantages


1   deep bass from a large vibrating area moving a lot of air . limit is the low frequency reasonance of the drive units


2   extended high frequency response as the small mass of each small cone permits high acceleration


3   mutual radiation impedance


4   each cone handles a small part of the total energy, very small displacement, reduced nonlinear distortion, high power handling capability


5   no box coloration


6   bass response rolls off gently since an open back drops at only 6dB per octave


7   dipole radiation giving amazing sound scape imaging


8   no frequency distribution crossover network needed, no power loss, no phase or other distortion


9   projection as sound level of arrays drops slowly with distance


10   efficiency from back radiation, no passive components, 3, 9

pleiades speaker schematic

Pleiades Dipole Speakers

Using many close mounted small fullrange driver units for a large bass vibrating surface..


Open back or mounted on a panel.


Connecting series parallel combinations for 8Ohms.

Pleiades 1.27KHz Filter

Winding 26 turns on Magnetec 073 Nanoperm nanocrystalline toroidal tape wound core gives an inductance of 25mH inside an XLR adaptor.


Assuming a source impedance of 200 Ohms this gives a cutoff frequency of 1.27KHz.


Sounded great with a Shure Unidyne microphone at next to lips distance, no proximity bass boost, no pops, diamond sparckling sound.