WASAPI with multi channel audio causes sync issue
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- Dominant language
- C
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Description
First and foremost consider this:
- Only RetroArch bugs should be filed here. Not core bugs or game bugs
- This is not a forum or a help section, this is strictly developer oriented
Description
WASAPI with multi-channel audio causes sync issue (about 75% underrun). If sound device is set to output 2 channels, the problem will disappear, everything is fine.
Expected behavior
WASAPI with multi channel audio with 0% underrun.
Actual behavior
WASAPI with multi channel audio with 75% underrun.
Steps to reproduce the bug
- set audio device to output multi channels (ie. 5.1)
- run any game with any core.
- reproduce the bug.
Bisect Results
RetroArch 1.16 and newer
Version/Commit
- RetroArch: 1.19.1 Stable
- OS: Windows 11
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with RetroArch's WASAPI audio path on Windows and reproduce the issue using a 5.1 output device with RetroArch 1.19.1 or newer. Compare behavior with two-channel output and test across a game and core; done means multi-channel output no longer produces the reported 75% underrun while two-channel output remains functional.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- audio-video-rtc
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100