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Forum Index : Microcontroller and PC projects : play sound

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stanleyella

Guru

Joined: 25/06/2022
Location: United Kingdom
Posts: 2134

Posted: 11:06pm 03 Apr 2023

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Hi, I can't get play sound to work but play tone is fine,
it says sound 1 to 4, B for both channels, frequency, volume 1 to 25 optional.
> PLAY sound 1,B,500
Error : Argument count
> PLAY sound 1,B,500,25
Error : Expected a string

phil99

Guru

Joined: 11/02/2018
Location: Australia
Posts: 2140

Posted: 11:28pm 03 Apr 2023

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PLAY SOUND soundno,
channelno, type [,frequency]
[,volume]

Try

PLAY SOUND 1, B, S, 500, 25

stanleyella

Guru

Joined: 25/06/2022
Location: United Kingdom
Posts: 2134

Posted: 08:45pm 04 Apr 2023

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@phil- nice, works. I tried PLAY SOUND 1, B, T, 500, 25
and guessed it because I heard it does sine,square and triangle but no mention in non vga manual. S is sine? what's square? is T triangle?

phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2140

Posted: 09:09pm 04 Apr 2023

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It's missing from that manual but is in the VGA manual.

'type' is the type of waveform. It can be S (sine wave), Q (square wave), T
(triangle wave), W (rising sawtooth) or O (turn off sound).

stanleyella

Guru

Joined: 25/06/2022
Location: United Kingdom
Posts: 2134

Posted: 09:45pm 04 Apr 2023

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Cheers @phil99, It's all new, I only recently built the filter.
I prefer play tone and 2 frequencies for an interesting "tone" and it's less clicky.

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