Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06990 Sound Major Random May 31, 2018, 02:46 Jun 1, 2018, 05:35
Tester wuemura View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10 (64-bit)
Status [?] Acknowledged Driver cps2.cpp
Version 0.198 Fixed in Version Build 64-bit
Summary 06990: Possible Super Street Fighter Series: Awful buzz sound noise
Description Intermittent issue, impossible to determine when and where is gonna start.
Confirmed with ss2tu and ssf2xj machines so far, looks like it affects QSound, unable to test other qsound machines.
Steps To Reproduce Play the machine
Additional Information Recorded with:
mame64 ssf2xj -aviwrite ssf2xj.avi
Regression Version
Affected Sets / Systems Possible Super Street Fighter Series
Attached Files
mp4 file icon sample.mp4 (2,443,080 bytes) May 31, 2018, 02:46 Uploaded by wuemura
Recorded noise
There are no relationship linked to this issue.
User avatar
May 31, 2018, 05:56
There's no way that commit causes change to sound output.
User avatar
Senior Tester
May 31, 2018, 10:15
edited on: May 31, 2018, 10:16
fwiw there used to be an issue with these specific qsound games requesting an invalid (negative?) number of samples, which was worked around as it was outright crashing MAME at the time and nobody knew where / why those requests were originating as they were basically random.

Given recent discoveries I think it's more likely the recent sound.cpp changes in that area have caused this along with the things MASH reported. ( )
User avatar
Jun 1, 2018, 05:35
Will acknowledge for now since it seems there's recorded proof. I wasn't able to confirm on my end after playing ssf2xj for about an hour.