On 08/19/2014 10:54 AM, Xuebing Wang wrote: > >>> Thanks. You were trying UAC2, right? >> Yes. > > Thanks Daniel. Did you hear noise (hear with ear phone, not speaker) > especially when playing music from Ubuntu host? I am hearing slight > noise here. > Not that I noticed. I'd suggest recording audio from the host into a file, then copy it over to your host for examination. Once you build a chain of audio components, it's hard to tell where your problem is otherwise. Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html