313 reputation
28
bio website gist.github.com/endolith
location New York, United States
age
visits member for 2 years, 4 months
seen Sep 11 at 17:36

I'm an electronics engineer.

My programming experience is limited to high-level Matlab/Python signal processing stuff, and low-level C microcontroller stuff.


May
20
comment Is there anything quantitative/qualitative about tone?
Makes me think of en.wikipedia.org/wiki/Bouba/kiki_effect and that someone should do an experiment like blog.xkcd.com/2010/05/03/color-survey-results
May
18
comment Why does a piano have only one or two strings per note in the bass register, but three for other registers?
What if the strings were made of uranium?
May
18
comment Why does a piano have only one or two strings per note in the bass register, but three for other registers?
I think the amount of air moved by the strings themselves is insignificant. They vibrate the sound board, which moves the air.
Jul
23
comment Why are there twelve notes in an octave?
Actually this was known before Pythagoras. He was just the first whose followers wrote it down. Also, modern theory shows that small integer ratios are only applicable to harmonic sounds. Inharmonic sounds or sounds with only odd harmonics produce different scales.
Jul
23
comment Evidence of Just Intonation in Recordings with Non-fixed-frequency Instruments
Actually I recently read that violinists play closer to equal temperament than just, but this surprised the author and was supposed to be from accompanying pianos too much. I'll post the reference if I stumble across it again.
Jul
23
comment Examples of songs or phrases played in different temperaments
soundcloud.com/tracks/search?q[fulltext]=just+intonation soundcloud.com/tracks/search?q[fulltext]=xenharmonic soundcloud.com/tracks/search?q[fulltext]=microtonal or the same searches on freesound.org for smaller snippets
Jul
23
comment Recommend reading why we have 12 pitches and another metrics in microtonal music?
Also worth reading, albeit unnecessarily confrontational: sonic-arts.org/mclaren/partch/errors.htm
Jul
14
comment Is there a defined note for the triangle?
It might not have a pitch. Percussion instruments like bells and blocks are often non-harmonic.
Jul
8
comment Is there a way to measure the consonance or dissonance of a chord?
@MatthewRead: Beating is the cause of dissonance. en.wikipedia.org/wiki/…
Jul
7
comment Piano tuning just under the absolute pitch
Which keys did you measure? Did you take stretched tuning into account?
Jul
7
comment Is there a way to measure the consonance or dissonance of a chord?
@MatthewRead: Yeah, but according to that curve, a 2.01:1 ratio of sine waves should be equally consonant with a 2:1 ratio, yet when I test this, there is very obvious beating in the 2.01 case. Maybe this is just due to distortion in headphones? I'm not sure.
Jun
14
comment Is there a way to measure the consonance or dissonance of a chord?
"it turns out to be impossible to tune all twelve chromatic notes" In Just intonation there aren't 12 notes. There are just tones in a fractal arrangement with small integer ratio relationships. 12-tone equal temperament is an approximation of Just intonation.
Jun
13
comment Is there a way to measure the consonance or dissonance of a chord?
I believe this is called "Tenney's harmonic distance". "HD(a/b) = log(ab) where a/b is a relatively prime, usually octave reduced ratio." I plotted it here. (Does this work for chords, too? 4:5:6 is a major chord and 10:12:15 is a minor chord, so minor chord is 1.6 times as dissonant?)