On Thu, 2014-07-10 at 22:43 -0400, Tim E. Real wrote: > zynaddsubfx Calf monosynth, phasex and a few other synth are likely closer to the OP's needs. Has somebody already tested Bristol's SID emulation? http://bristol.sourceforge.net/sidney.shtml OT: > Probably because there was no way to produce sample driven audio from SID. > Actually, that's not entirely true: > > Later in this thread I think Len refers to the General Instrument AY-3-8910. > > Ironically both the Commodore SID and the AY-3-8910 *can* produce > sampled audio, the SID in two different ways: > > 1) Use the SID's 12-bit Pulse Width Modulators to produce PWM audio. > Drawback: Maximum operating frequency is around 3Khz, which gets into > the audio, so you need a low-pass filter down there. > > 2) Use the SID's or the AY-3-8910's Volume registers to produce sampled audio. > (Set the SID oscillators for 'DC' - the highest f number, or the GI's volume > mode to a 'DC' envelope.) > Drawback - it's only 4-bit audio samples. I used 2-bits, but even 8-bit was possible, http://www.c64-wiki.de/index.php/Audiodigitizer and I guess I used the same digitiser as shown in this link, sure, I used a sane PCB and not such an ugly one. The drawback, while the C64 was able to do MIDI hard real-time, better than Linux is able to do, it was very slow and the hard real-time processing of MIDI events could become problematic when you tried to provide running status. The MIDI sound sampler I wrote didn't come with running status, so I had to disable it for the Atari ST sequencer output that sent the MIDI events to the C64 sound sampler. AFAIK MIDI running status can't be disabled for Linux MIDI out. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
