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capcom/cps2.cpp
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
01208 Sound Minor Have not tried Feb 12, 2008, 10:51 Jan 14, 2019, 18:55
Tester -Misc Reporters- View Status Public Platform
Assigned To Resolution Open OS
Status [?] Confirmed Driver
capcom/cps2.cpp
Version 0.114 Fixed in Version Build
Fixed in Git Commit Github Pull Request #
Summary 01208: pzloop2: [possible] Sound effects only play on the left audio channel.
Description I've noticed that in pzloop2 (also pzloop2j) sound effects only play on the left audio channel (music plays from both channels). The behavior should be verified using a real cart.
Steps To Reproduce
Additional Information Posted by ChaotiX
Github Commit
Flags Possible
Regression Version
Affected Sets / Systems pzloop2
Attached Files
  
Relationships
related to 02209Resolved  mmatrix: [possible] Sound effects are only emitted from the left channel. 
Notes
5
User avatar
No.15024
ctr
Tester
May 13, 2018, 14:18
 Probably intended behavior, related to #02209
User avatar
No.16024
MetalGod
Senior Tester
Jan 11, 2019, 12:44
 Not happening anymore since mame 0.201
Fixed
- 0.201: Q-Sound: Added device_clock_changed [smf]. Saturate ROM offsets (sound\qsoundhle.cpp). Apply ADPCM sample bank (sound\qsound.cpp) [superctr]. Added improved qsound_hle core. Use ROM lookups instead of copying tables at init and use enums for most DSP ROM addresses. Replacing memset at the cost of legibility (sound\qsoundhle.cpp). Fixes awful buzz sound noise in the Super Street Fighter series [Lord Nightmare]. Removed EEPROM MCFG macros [Ryan Holtz].
User avatar
No.16029
Osso
Moderator
Jan 12, 2019, 16:11
 Tried this with mame 0.205 and sound effects only come out of the left speaker, as the bug report says. Music works fine.
User avatar
No.16030
MetalGod
Senior Tester
Jan 12, 2019, 17:17
 I recommend using headphones to see the difference since mame 0.201.
User avatar
No.16034
ctr
Tester
Jan 14, 2019, 18:55
 This definitely still happens and if it doesn't, it's probably because you forced the game into mono output in the config menu or otherwise changed the nvram contents.

I don't think it's an emulation bug though, the logs show that the games do write a value to DSP registers which correspond directly to left panning in the lookup table.