Re: Frequency response was Re: [linux-audio-user] Audiophile CD's

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Subject: Re: Frequency response was Re: [linux-audio-user] Audiophile CD's
From: Malcolm Smith (spock_AT_canopus22.demon.co.uk)
Date: Tue Jan 29 2002 - 00:47:08 EET

>(*) is this the correct term ? i'm thinking of f(beat) = abs(f1 -
>f2) or ring modulators.
>

http://www.sfu.ca/sca/Manuals/ZAAPf/i/index.html

Lots of acoustics info, look under C for:

   COMBINATION/DIFFERENCE TONES

   Also known as sum and difference tones.
   When two frequencies are perceived simultaneously,
   one may hear the difference of their individual
   frequencies as well as (rarely) the sum.
   This distortion, caused by the ear itself, is
   particularly evident with sine or sine-like timbres
   - thus easily demonstrated with two recorders, etc.

Also, on a different note, check some interesting .au files at:

http://asa.aip.org/sound.html
(Acoustical Society of America)

[bottom of page]

Circularity in Pitch Judgment

- Shepard's Discrete Scale

- Risset's Continuous Scale 

-- 
Malcolm Smith

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