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Thorham · 14 May 2010, 20:12

Hi,

The idea is based on the fact that some programs can playback 8 bit 84 khz audio on a standard A500 (Megalo Sound sampler software, for example).

Basically you create two 14 bit channels by changing the volume bits along with the sample data (you convert the 16 bit data to an 8 bit sample, and 6 bit volume part), and then combine the two 14 bit channels to get one 15 bit channel. Because you can't use DMA for this, a timer interrupt is used (tried something with the copper, but was unsuccessful).

Sounds plausible? Is it worth trying?

Any thoughts are appreciated

14 May 2010, 20:12	#1
Thorham Computer Nerd Join Date: Sep 2007 Location: Rotterdam/Netherlands Age: 47 Posts: 3,762	15 bit 44 khz audio idea. Hi, The idea is based on the fact that some programs can playback 8 bit 84 khz audio on a standard A500 (Megalo Sound sampler software, for example). Basically you create two 14 bit channels by changing the volume bits along with the sample data (you convert the 16 bit data to an 8 bit sample, and 6 bit volume part), and then combine the two 14 bit channels to get one 15 bit channel. Because you can't use DMA for this, a timer interrupt is used (tried something with the copper, but was unsuccessful). Sounds plausible? Is it worth trying? Any thoughts are appreciated