PocketSPC is a SNES sound chip emulator for the Nintendo DS. The SPC700 is capable of 8 channel stereo playback at 32,000Hz with ADSR envelope support per voice, and an 8 tap FIR filter. Currently all 8 channels are emulated in stereo, with full ADSR support. Changes:

Enabled preamp which I forgot to do in last release

Added PCALL/SLEEP opcodes, should help compatibility

KON/KOFF were being trashed on write, fixed

Fixed setting of ADSR when note was in release state

When note is finished, envelope state is set to none now

Fixed TCALL opcode, Rudra no Hihou now works (probably others as well…)

End of sample block decoding bug(s) fixed – finally fixes errant samples playing in zelda&many others

Added echo hack so that songs that were silent before now play back (earthbound) – This hack can also cause some issues with songs that use the echo with some wierd filters, such as some of the final fantasy 3 songs.

Improved accuracy of BRR decoding, samples are more accurate now

Dropped mixing rate to 24000Hz, gets rid of crackling during intense songs (legend of the mystical ninja)

http://pocketspc.pocketheaven.com/