[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: harmonic vs. inharmonic sounds (one last time)
Your latest posting to the list contains the first of my private
messages on difference tones, but not the second message which was a
correction of the first one. Anyhow -- here is what I personally
If I play on a synthesizer simultaneously two sine-tones of
frequencies f_1 and f_2, softly at first and then with continually
increasing volume, I hear difference tones if the ratio f_2 / f_1 is
in the range from about 1.2 to 1.4.
For example, for f_1 = 400 Hz and f_2 = 500 Hz, I hear, at very low
volume, no difference tone. Then, at slightly higher volume, I hear a
cubic difference tone, f = 2f_1 - f_2 = 300 Hz. At still higher
volume, I hear a first-order difference tone, f = f_2 - f_1 = 100
See, e.g., R. Plomp, "Detectability Threshold for Combination
Tones", JASA 37 (1965) 1110-1123.
Dr. phil. nat.,
r. PSI and ETH Zurich,
Phone: 0041 56 441 77 72.
Mobile: 0041 79 754 30 32.
E-mail: reinifrosch@xxxxxxxxxx .
Datum: 16.03.2007 11:55
Betreff: Re: harmonic vs. inharmonic sounds (one last time)
I think my question is ... Do "you" perceive and/or hear, rather
the third person neutral. Perhaps this is why I'm a composer and
a scientist, I'm more interested in "you" then 'the' "them".