Tandy 1000 Basic Reference Manual

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 (see
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
10 SOUND ON
20 FOR I = 0 TO 7
30 NOISE I, 15, 250
40 PLAY I1 I, II I, “V0”
50 NEXT I
> ,
224

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200