Commodore 16 - Page 69

SOUND AND MUSIC
This displays all of the notes in one scale, along with
the note value to use:
NOTE A B C D E F G
VALUE 770 7S8 810 834 854 864 881
ACTUAL FREQUENCY 440.4 494.8 522.7 588.7 658 699 782.2
(HZ)
•The third number after the word SOUND controls
the duration (length) of the note, telling your com
puter how long to play the note.
•This number can be anything from 0 to 65535. This
number sets a timer, which counts time in 60th's
of a second. A duration of 60 keeps the note on for
one second.
•The rule of thumb for duration is the larger the num
ber, the longer the note stays on.
A Sound Effect
• Here is a short program to give you an idea of how
you can create different sound effects on your
Commodore 16. Type it in exactly as it appears
here, pressing =J*ETURN after each line.
NEW
10 VOL 8
20FORL = 1 TO 10
30 SOUND 1,466,20
40 SOUND 1,1020,15
50 NEXT L
60 SOUND 3,500,20
RUN
This program simulates a busy signal, and the line be
ing disconnected.
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