The Norwegian composer Geir Tjelta has introduced a new trick for the SID-chip: realtime delay. The output of the third channel of the SID can be recorded, and by delaying the playback of the sample on the “virtual” fourth channel, you get a subtle echo. This routine doesn’t use much CPU-time either. A nice and elegant trick. Get the exe and mp3 here. It needs to run on the old 6581 chip, since this technique for playing samples relies on a bug that was almost fixed with the new 8580 chip. Source: http://chipflip.wordpress.com/2009/09/23/more-soundchip-hacking-realtime-sid-delay/
Geir is also a member of the legendary and first game music company in the world, Maniacs of Noise.
Edited by Tjelta on 2 Aug 2010, 05:30
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