Elektron Musical Instruments

On Thu Jul 04 2002, CraZ <craz@...> wrote:

> The MOS 6581 is capable of playing back 8bit PCM samples. 

*meeep* Wrong! :)

Sample playback on the C64 was acheived by changing the volume of the
SID chip rapidly, the volume register has 4 bits. Thus, it is 4 bit
samples.

> However to enable sample playback the SID needs to be fed sample
> data directly from some kind of memory.

True. The volume register needs to be updated quite often to achieve a
decent sample rate, i.e. all the time when playing a song with
samples, unless you would like even crappier sounds.

The Sidstation OS does not support playback of samples in any
way. Memory and OS reasons are the causes for this.

/Janne

-- 
Janne G:son Berg, d3berg@...   http://www.dtek.chalmers.se/~d3berg
                                      .