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Forums > C64 Composing > Digi-Sound+Filter?
2005-10-20 17:45
Bamu®
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Registered: May 2005
Posts: 1332
Digi-Sound+Filter?



Is there any technique that allows to play a digi-sound + modulate it with filters (filter- slides)
2005-10-21 02:00
A Life in Hell
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Registered: May 2002
Posts: 204
Quote:

Is there any technique that allows to play a digi-sound + modulate it with filters (filter- slides)


Playing your digi's using PWM should achieve this. There is an article on how to do this in high quality in c=hacking #21, iirc (also a demo of a technique similar to the high quality one they menntio in their addendum is in Darwin/TheDreams, iirc).

You should be able to filter that until your elephant's content.
2005-10-22 13:36
Bamu®
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Registered: May 2005
Posts: 1332
But, it is possible to code a player that plays two SID voices and one PWM channel?
2005-10-22 15:29
Krill

Registered: Apr 2002
Posts: 3083
According to Danko who made a pwn sample player for the wonderland series, you need 2 sid voices to make it sound good.
2005-10-22 16:51
chatGPZ

Registered: Dec 2001
Posts: 11510
yes you need 2 pulse channels for proper 12bit samples ... you can do somewhat ok 8bit samples on just one channel though
2005-10-23 13:56
Bamu®
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Registered: May 2005
Posts: 1332
Quote: According to Danko who made a pwn sample player for the wonderland series, you need 2 sid voices to make it sound good.

That sounds good! Did he released this pwm sample player?
2005-11-11 23:03
Krill

Registered: Apr 2002
Posts: 3083
Not that i know of.
2005-11-12 05:52
chatGPZ

Registered: Dec 2001
Posts: 11510
the method was discussed in some cbm-hacking issue i think

[ok someone else said this before :=D]
2005-11-13 11:35
TNT
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Registered: Oct 2004
Posts: 189
Buy/borrow/steal MMC64 and try my RAW plugin, it plays 15 kHz samples using the three channel PWM technique in C=H 20/21.
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