Great Hierophant wrote:
Historically, there are 85 known games supporting the Game Blaster, but World of SAM lists 80 games published for the SAM Coupé. I guess that makes the Game Blaster the most popular device using the SAA-1099 PSGs 😀
The base frequency for the SAA-1099s must be that of the Game Blaster (7.159MHz), not the Coupé (6MHz I think), in order for the music to sound as it should on a Game Blaster. Moreover, the Game Blaster has two SAA-1099s to the Coupé's one, so you will miss half the music if the VGM standard does not support the Game Blaster alternative.
Admittedly, I have a strong bias for the YM3812, but my interest in the SAA1099 got rekindled when I read in the application manual about the envelope generators. Creative Labs' programming document for the chips (for some strange reason) left out those particular details and (to this day) I wonder if anyone has tried to use the envelope generators on an actual Gameblaster ... I really wish I had one to test on! 🙁 I still remember when I was in high school (a LONG time ago) seeing a Gameblaster at the Radio Shack in town and not thinking much about it (since I already had a Sound Blaster) ... if I could have only seen the future! 😀
Looking at the VGM spec, there does seem to be support for multiple chips of the same kind, so perhaps it's all a matter of being able to capture the data (like DROs) and make VGMs from that.
From what I've read about the Sim Coupé, it seems that the SAA1099 is clocked separately at 8MHz. Since there is already VGM support for the SAA1099, it should be as "simple" as creating VGMs from the Sim Coupé. I have never tried to create VGMs myself though.