nesdev.org

According to Higan, only one echo sample is read every time, and the FIR history is stored in a separate ring buffer array from SPC memory. So that means that the FIR filter history is stored in a hardware shift register, separate from system RAM?

Bregalad wrote:Looks correct to me.

Just to make sure, the FIR buffer is a separate ring buffer in memory, not the echo buffer? Is it a memory region, or stored outside the memory space?

Someone's maintaining an unofficial Higan snapshot repository. You can find hiro builds source code there: https://gitlab.com/higan/higan
I think hiro may depend on nall, also in that repo.

Note that development discussion is in byuu's forum: http://board.byuu.org/phpbb3/viewforum.php?f=15

After studying SNES docs, Anomie's docs, and Higan/Game-Music-Emu source code for days, I wrote up a flowchart for the structure of the SNES echo and FIR filter system. Can anyone verify that it's correct? Especially the FIR filter part? http://bin.smwcentral.net/u/22354/snes-echo2.out.png Note that...

use hiro (byuu)? </sarcasm>

I've never used it before, and I'm not sure if the API is anywhere near stable at this point, but...

It's more geared towards emulators. I'm not sure if the file open is what you're looking for.

how is snestracker development going? does it compile and run on windows/linux?

Thanks for your rip, it's exactly what I'm looking for.

I'm contacting dgrfactory about the emulation error.

Try this? https://www.dropbox.com/s/jqn525gxcgxn3 ... c.spc?dl=1

EDIT: Snes9X produces the same sound as GEP. Sadly, I still can't rip the samples for a soundfont, due to echo.

I'm working on converting/ripping the song "Dancing Mad" from Final Fantasy 6. The most unique element of that song is Kefka's laugh. This is created through pitch modulation. The SPC sounds very different when played back through SNESAPU (SPC player) vs. GEP (foobar2000 foo_gep). I assume...