Sound and Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg19752] Sound and Mathematica*From*: cyber.guru at gmx.de (Tobi)*Date*: Wed, 15 Sep 1999 03:53:04 -0400*Organization*: The Math Forum*Sender*: owner-wri-mathgroup at wolfram.com

Hi! I've a problem with mathematica: I want to create a sound which includes all frequencies between 20 Hz and 20 000 Hz. The sound should begin at 20 Hz and stop at 20 000 Hz and should increase linearly. For testing it, I used the following mathematica command (20 - 4000 Hz): (Later I want to replace 4000 by 20 000) Play[Sin[4000 t 2 Pi t], {t, 0, 1}]] But the frequency, on which this generated sound stops was much more higher than 4000 Hz! What's my mistake? Thanks, TOBI