Atari 400 - Page 288

286 User's Handbook to the Atari 400/800 Computers
The SOUND statement can produce either pure or distorted
tones. distortion can range between 0 and 15. A distortion value
of 10 or 14 will produce a pure tone. Any of the other even
distortion values (0, 2, 4, 6, 8, 10, and 12) will generate a different
amount of noise into the tone produced. The amo unt of this
noise
will depend up on the distortion and pitch va lu es specified.
The
odd numb ered distortion values (1,3,5,7,9,11,13) cause the
voice indicated in the SOUND statement to be si lenced. If the
voice is on, an odd-numbered distortion va lue will result in its
being shut off.
The
volume controls the loudn ess of the voice indicated in
SOUND. volume ranges from 0 (no sound) to 15 (highest
volume).
An Atari BASIC statement with a volume of 0 will turn off the
sound. Sou nd can al so be turned off by executing an END, RUN,
NEW,
DOS, CSAVE, or CLOAD. If the System Reset key is
pressed, sound will be turned off. However, if the Break key is
pressed, sound will not be turned off.