SecondBASIC Documentation v3

Psg

Description: Plays a frequency or changes the parameters for a Psg sound <Channel>.

Syntax:

Part	Description
<Channel>	Required. Channels range from 0 to 3. 0 to 2 are the tone channels and 3 is the noise generator.
<Data>	Required. This is a 10 bit frequency for a tone channel. If using the noise generator, <Data> has the following parameters: MSB: 0 0 0 0 0 FB NF1 NF2 :LSB FB Noise Type: 0: Periodic (low frequency tone) 1: White (hiss) NF1 NF2 Noise Generator Clock Source 0 0 Clock / 2, higher pitch 0 1 Clock / 4 1 0 Clock / 8, lower pitch 1 1 Tone Generator #3

 

Note	PSG	Hertz		Note	PSG	Hertz
A3	7	110.00		B5	798	493.88
A#3	64	116.54		C6	810	523.25
B3	118	123.47		C#6	822	554.37
C4	169	130.81		D6	834	587.33
C#4	217	138.59		D#6	844	622.25
D4	262	146.83		E6	854	659.26
D#4	305	155.56		F6	864	698.46
E4	345	164.81		F#6	873	739.99
F4	383	174.61		G6	881	783.99
F#4	419	184.99		G#6	889	830.61
G4	453	195.99		A6	897	880.00
G#4	485	207.65		A#6	904	932.32
A4	516	220.00		B6	911	987.77
A#4	544	233.08		C7	917	1046.50
B4	571	246.94		C#7	923	1108.70
C5	596	261.63		D7	929	1174.70
C#5	620	277.18		D#7	934	1244.50
D5	643	293.66		E7	939	1318.50
D#5	664	311.13		F7	944	1396.90
E5	685	329.63		F#7	948	1480.00
F5	704	349.23		G7	953	1568.00
F#5	722	369.99		G#7	957	1661.20
G5	739	391.99		A7	960	1760.00
G#5	755	415.31		A#7	964	1864.70
A5	770	440.00		B7	967	1975.50
A#5	784	466.16		C8	971	2093.00

Example: