Tandy 1000 Basic Reference Manual page 226

Chapter 10 I BASIC
Keywords
NOISE
Statement
NOISE source, volume,d uratwn
Generates noise through a TV monitor's speaker (external
speaker).
Source is an integer in the range 0 to 7. It selects the type of
noise. If
source is in the range 0 to 3, periodic noise is selected.
If
source is in the range 4 to 7, white noise is selected.
Periodic White
Frequency
0 4 35795451512
1 5 357954511824
2 6 357954512048
3 7
frequency
of Voice 2 ( s e e
Volume is an integer in the range 0 to 15 where 0 is the quietest
and 15 is the loudest.
Duration
is a numeric expression in the range 0 to 65535. It sets
the duration of the noise.
A duration
of 18.2 equals 1 second.
You must execute a SOUND
ON
statement before using NOISE
or
BASIC
returns an "Illegal function call" error.
SOUND).
Sample Programs
1 0 SOUND ON
2 0 FOR
I
=
0 TO
7
3 0
N O I S E I ,
1 5 , 2 5 0
4 0 P L A Y
I 1 I, II
I,
" V 0 "
5 0 N E X T
I
>
,
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