Not supported Sega CD PCM sounds?

[vitamin-caig]

Hello!

Found out that Sega CD tracks sound improperly. Please check out https://vgmrips.net/packs/pack/silpheed-mega-cd

Checked also at the most recent version 8dcffa4

[ValleyBell]

What tracks sound incorrect and in which way? (specific songs would be nice and timestamps would be even nicer)

I listenened to a few of them using the current libvgm player and also vgmplay-libvgm and didn't notice anything that is obviously wrong.

[vitamin-caig]

Right first one "01 - IPL ~ Opening Demo.vgz" produces no sound. Maybe, I've missed some devices definitions?

[ValleyBell]

You need to enable "RF5C68: Gens core" for MegaCD PCM.
Due to historic reasons, RF5C68 MAME is used for the "RF5C68" from the VGM spec. and RF5C68 Gens is used for the "RF5C164".

I should probably relax that requirement.

[vitamin-caig]

Both RF5C68 cores were used. I've disabled SNDDEV_SELECT (adding all necessary files to linkage) and tracks are working.

Looks like it's required to support minimal essential cores set to avoid linking redundant code.

[vitamin-caig]

Closing as invalid:)

[ValleyBell]

Well... I think it's not entirely invalid.
Requireing both cores for everything to work is effectively undocumented behaviour.

I'll keep it open as long as this requirement is in place.

[mmontag]

This helped me fix a similar issue in Chip Player JS. Thanks @vitamin-caig