09337: ct486: [chasm]: The only sound source is CD audio tracks.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09337	Sound	Major	Always	Dec 19, 2025, 06:07	29 days ago

Tester	VasiliyFamiliya	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To		Resolution	Open	OS	Windows (x64)
Status [?]	Direction Needed			Driver	pc/ct486.cpp
Version	0.283	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09337: ct486: [chasm]: The only sound source is CD audio tracks.
Description	There's no any SFX (including briefers replies).
Steps To Reproduce
Additional Information	Affects both high and low-level Sound Blaster 16 emulation.
Github Commit

Flags
Regression Version
Affected Sets / Systems	ct486: [chasm]

Attached Files

No.23937 Kale Developer Dec 19, 2025, 18:37	Does this happens on bleeding edge too for low level sb16?
No.23939 VasiliyFamiliya Tester Dec 20, 2025, 03:47	I downloaded a fresh master artifact, checked once again through the sb16_lle - and bug is still present. May this game require the audio card drivers unlike most DOS games? Chasm launched on the PCBox through the pure DOS, not from the Windows, has a same bug.
No.23944 Kale Developer Dec 20, 2025, 13:44 edited on: Dec 20, 2025, 13:51	Game has no installer, and I hear voices and SFX samples just fine in ct486 + FreeDOS or MS-DOS 6 + sb16 hle or lle (by running it from CD-ROM itself, not copying).
No.23947 VasiliyFamiliya Tester Dec 20, 2025, 15:59	Installer name is dossetup.exe.
No.23948 Kale Developer Dec 20, 2025, 17:36	Ok, missed it, but still doesn't change that I can hear voices and SFXs just fine ...
No.23974 VasiliyFamiliya Tester Dec 26, 2025, 13:10	It's turned out to be that this game really requires a drivers from sb16 item of ibm5170 SW list.
No.24016 Kale Developer 29 days ago edited on: 29 days ago	Yeah, obviously I have such driver installed :) Safe to close, beyond requiring a note in the SW list?
No.24017 VasiliyFamiliya Tester 29 days ago	Yes, it should, and also add an extra advice to luanch through the Windows as an alternative (this game not for nothing have a 2 installers - DOS- and Windows-compatible, althought the game itself is strictly for DOS).