Date: Thu, 14 Apr 2016 03:30:03 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 208791] USB audio playback issue Message-ID: <bug-208791-6@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D208791 Bug ID: 208791 Summary: USB audio playback issue Product: Base System Version: 10.3-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: usb Assignee: freebsd-usb@FreeBSD.org Reporter: alex@inferiorhumanorgans.com CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org Using a USB DAC (AudioQuest DragonFly) I get clicking and popping (vinyl-li= ke). With FreeBSD 9.3 I was able to get clean output by setting the default sam= ple rate to 44100. With 10.3 that is not the case. This is the device: uaudio0: <AudioQuest inc. AudioQuest DragonFly, class 0/0, rev 1.00/1.0c, a= ddr 10> on usbus1 uaudio0: Play: 44100 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer. uaudio0: Play: 96000 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer. uaudio0: Play: 88200 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer. uaudio0: Play: 48000 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer. uaudio0: Play: 44100 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer. uaudio0: No recording. uaudio0: No MIDI sequencer. pcm3: <USB audio> on uaudio0 uaudio0: No HID volume keys found. # sysctl dev.pcm.3 dev.pcm.3.feedback_rate: 44049 dev.pcm.3.mixer.mute_1.desc: AudioQuest DragonFly dev.pcm.3.mixer.mute_1.max: 1 dev.pcm.3.mixer.mute_1.min: 0 dev.pcm.3.mixer.mute_1.val: 0 dev.pcm.3.mixer.vol_0_1.desc: AudioQuest DragonFly dev.pcm.3.mixer.vol_0_1.max: 53 dev.pcm.3.mixer.vol_0_1.min: 0 dev.pcm.3.mixer.vol_0_1.val: 29 dev.pcm.3.mixer.vol_0_0.desc: AudioQuest DragonFly dev.pcm.3.mixer.vol_0_0.max: 53 dev.pcm.3.mixer.vol_0_0.min: 0 dev.pcm.3.mixer.vol_0_0.val: 29 dev.pcm.3.bitperfect: 0 dev.pcm.3.buffersize: 0 dev.pcm.3.play.vchanformat: s16le:2.0 dev.pcm.3.play.vchanrate: 44100 dev.pcm.3.play.vchanmode: fixed dev.pcm.3.play.vchans: 1 dev.pcm.3.hwvol_mixer: vol dev.pcm.3.hwvol_step: 5 dev.pcm.3.%parent: uaudio0 dev.pcm.3.%pnpinfo:=20 dev.pcm.3.%location:=20 dev.pcm.3.%driver: pcm dev.pcm.3.%desc: USB audio I do seem to see these with debugging turned up: uaudio_chan_play_sync_callback: Comparing 44149 Hz :: 44100 Hz --=20 You are receiving this mail because: You are on the CC list for the bug.=
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