harmonic vs. inharmonic sounds (again one last time) (Kevin Austin )

Subject: harmonic vs. inharmonic sounds (again one last time)
From:    Kevin Austin  <kevin.austin@xxxxxxxx>
Date:    Sun, 18 Mar 2007 10:48:21 -0400

Sorry for my poor email etiquette. Before moving on to a more central interest, I will extend this with an another idea. I play the 200, 300, 400 etc collection and listen carefully. I play the 100, 200, 300, 400 etc collection and listen carefully. I turn off the stimulus and in my head I "re-listen" [*] to the two examples again. My question: what would be a 'better' word to more accurately describe the [*] re-listen used above. Am I now "thinking" the 'sounds'; thinking 'about' the sounds? When someone speaks to me, I almost immediately replay what they are saying picking out the key aspects / features creating a hierarchy of dealing with ideas which are to be handled in a quasi-sequential fashion, although, as for example in here, presented in a non-closely sequential fashion, along with interruptions and elaborations. Or is this what is partially meant by 'cognition'? Best Kevin >Date: Sat, 17 Mar 2007 14:30:41 +0000 >From: "reinifrosch@xxxxxxxx" <reinifrosch@xxxxxxxx> >Subject: Re: harmonic vs. inharmonic sounds (one last time) > >Dear Kevin, > >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 >perceive: > >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 =3D 400 Hz and f_2 =3D 500 Hz, I hear, at very low=20 >volume, no difference tone. Then, at slightly higher volume, I hear a=20 >cubic difference tone, f =3D 2f_1 - f_2 =3D 300 Hz. At still higher=20 >volume, I hear a first-order difference tone, f =3D f_2 - f_1 =3D 100=20 >Hz. > >See, e.g., R. Plomp, "Detectability Threshold for Combination >Tones", JASA 37 (1965) 1110-1123. > >Reinhart. > >Reinhart Frosch, >Dr. phil. nat., >r. PSI and ETH Zurich, >Sommerhaldenstr. 5B, >CH-5200 Brugg. >Phone: 0041 56 441 77 72. >Mobile: 0041 79 754 30 32. >E-mail: reinifrosch@xxxxxxxx . > >----Urspr=C3=BCngliche Nachricht---- >Von: kevin.austin@xxxxxxxx >Datum: 16.03.2007 11:55 >An: <AUDITORY@xxxxxxxx> >Betreff: Re: harmonic vs. inharmonic sounds (one last time) > >Thanks > >I think my question is ... Do "you" perceive and/or hear, rather=20 >than the third person neutral. Perhaps this is why I'm a composer and=20 >not a scientist, I'm more interested in "you" then 'the' "them". > >Best >Kevin >

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Electrical Engineering Dept., Columbia University