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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
00015 Sound Minor Have not tried Jan 16, 2008, 04:25 Mar 5, 2009, 12:04
Tester Twisty View Status Public Platform
Assigned To aaron Resolution Fixed OS
Status [?] Resolved Driver
Version 0.113u1 Fixed in Version 0.129u6 Build
Fixed in Git Commit Github Pull Request #
Summary 00015: Noticeable static in OKI 6295 audio.
Description Starting in 0.112u3, there is very noticeable static present in the OKI 6295 audio along with a slight decrease in quality, for at least cps1.c games.
Steps To Reproduce
Additional Information
Github Commit
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Regression Version
Affected Sets / Systems
Attached Files
zip file icon oki6295static0113u1gre.zip (554,137 bytes) Feb 13, 2008, 21:38
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Notes
3
User avatar
No.03852
Phil Bennett
Developer
Feb 28, 2009, 11:18
This seems to be caused by a lack of accuracy in MAME's linear interpolation resampler (see generate_resampled_data(), emu/streams.c).
User avatar
No.03886
Twisty
Senior Tester
Mar 5, 2009, 08:37
Very nice to see this issue finally addressed.
User avatar
No.03887
Haze
Senior Tester
Mar 5, 2009, 12:04
fwiw it was a much more serious mame core (streams) issue rather than anything specific to the OKI6295, so it could affect other things.