A Great Man

I could never accept findings based almost exclusively on mathematics. It ain't ignorance that causes all the trouble in this world. It's the things people know that ain't so.

Edwin Armstrong (inventor of FM)

I could never accept findings based almost exclusively on mathematics. It ain't ignorance that causes all the trouble in this world. It's the things people know that ain't so.~Edwin Armstrong - See more at: http://webcache.googleusercontent.com/search?q=cache:FHWhEe95L50J:www.perfect-quote.com/ignorance.html+&cd=4&hl=el&ct=clnk&gl=gr&client=firefox-a#sthash.4YbmVZgn.I

I could never accept findings based almost exclusively on mathematics. It ain't ignorance that causes all the trouble in this world. It's the things people know that ain't so.~Edwin Armstrong - See more at: http://webcache.googleusercontent.com/search?q=cache:FHWhEe95L50J:www.perfect-quote.com/ignorance.html+&cd=4&hl=el&ct=clnk&gl=gr&client=firefox-a#sthash.4YbmVZgn.dpuf

I could never accept findings based almost exclusively on mathematics. It ain't ignorance that causes all the trouble in this world. It's the things people know that ain't so.~Edwin Armstrong - See more at: http://webcache.googleusercontent.com/search?q=cache:FHWhEe95L50J:www.perfect-quote.com/ignorance.html+&cd=4&hl=el&ct=clnk&gl=gr&client=firefox-a#sthash.4YbmVZgn.dpuf

How to Win Friends and Influence People by Dale Carnegie

Το συστήνει ο Μάκης Μάτσας στα παιδιά του και με τη βοήθεια του σε καθημερινή βάση έπαιξε σημαντικό ρολο της ιστορία της ελληνικής μουσικής.

 
Το αγόρασα και έπαθα πλακα.


Θα έπρεπε να τα μαθινουμε αυτά από το σχολειό.


Χρησιμοποιεί βασικές αρχές που έγραψε και ο Επίκτητος.


Οι περισσότεροι επιτυχημένοι multi millionaires, πολιτικοί, engineers κτλ η το είχαν έμφυτο η το έμαθαν από αυτό το βιβλίο.


You'll have the world at your feet.


http://en.wikipedia.org/wiki/How_to_Win_Friends_and_Influence_People

Το ύψος ενός ήχου δεν εξαρτάται μονο από τη συχνότητα αλλα και από την ένταση!

Perceived Pitch Depends on Sound Intensity

This can easily be verified by adjusting the distance of a tuning fork to your ear while it vibrates.


The higher the intensity the lower the perceived pitch.


Sounds a bit like time expanding!


It makes sense to give singers a very soft volume backing track so they stay in tune, or may be usufull to fine tune a singer while recording.


References:

1. Sound and Hearing, Time Life encyclopedia

2. S. Stevens, H. Davis, Hearing: Its Psychology and Physiology

Hit Song Ingredients with Examples

8 Hit Song Ingredients are:




Code, Pedal Bass, Harmonic Chain, 4 Chords Only, Sweetening, Varispeed, Key, Step Bass.


Below is a list of examples of popular radio air played songs:

Using Pleiades Filters with Ribbon Microphones

A great way to use a ribbon mic is to have 3 transformers in the signal path.
One in the mic itself.
One in the microphone preamplifier
And a Pleiades step up autotransformer in between.


For example an effective 1:42 turns ratio with a 1:7 in the preamp and a 1:6 Pleiades can be created using less than a millihenry primary inductance.


A 1:6 Pleiades was yesterday first used  on a 25-50 Ohms Grampian ribbon mic.
Only 6 turns primary was wound on Magnetec excellent smallest size Nanoperm toroidal core giving 0.6mH.


For next to lips mic distance even <0.6mH could be used.


The Pleiades low cuts and electromagnetically damps the ribbon making crystal clear voice capture at 1in using 0.6mH. Getting as much voice with least possible thermal noise and low cutting ambience too.


Next experiment will be with even less turns; 5?, 4? in the primary.


It is very refreshing  to hear this way a ribbon mic for closest vocals after some 20 years of experiments.

:
The Magnetec core is so good it may be able to handle directly a very high turns ratio of the order of 1:40 or perhaps more.


Some more Pleiades filters may be available in the future on eBay by aetoulis.


Possible next experiments will include lower cutoff and a 2nd pole defined by the value of the source resistor bypass capacitor.

Could High Cut Low Pass Pleiades Filters be used to Locate Negative Beings?