Pavel Hofman pavhofman@gmail.com 於 2019年9月16日 週一 下午7:55寫道：
This topic seems quite similar to my thread about measuring average throughput for asynchronous feedback https://www.spinics.net/lists/alsa-devel/msg96781.html . I perfectly understand the motivation :-)
Perhaps that inexpensive headset is not really async playback, but standard adaptive, reporting incorrect USB header? Then capture (async = internal clock) would differ from playback (adaptive = USB controller clock).
Regards,
Pavel.
Hi Hin-Tak,
Sorry for the late reply. The log looks normal. I can not find any obvious problem within this log. As Pavel said, they use the different clock. So I think it may be the problem of that headphone. Do other USB headphones also have this problem?
Best, Yu-Hsuan