Working video and controls, but no client audio
The Anbernic RG557 session lost audio when the host PC’s Windows output was not configured at 48 kHz. The format-dependent behavior pointed to host-side audio preparation rather than a general client speaker failure.
Do not assume Windows already supplies the expected format
Windows devices expose multiple sample rates. A robust chain must accept the actual source format and convert where needed. Temporarily selecting 48 kHz helped confirm the cause but was not an acceptable product fix.
Helio 0.1.81 normalizes the affected audio path
Version 0.1.81 removes the dependency on that manual setting for the reproduced case. The tester confirmed audio on the same RG557 configuration.
Fixed on one tester device does not mean fixed everywhere
The validation does not cover every Windows driver, sample rate, PWA or Android device. Reports should include client model, Helio version, Windows output format and web/native path.
Four details that accelerate support
Share Helio version, client type, Windows audio device and sample rate, plus whether local host audio works. Avoid sending unrelated personal data.