Date: Fri, 6 Jul 2018 11:24:35 -0700 From: Kevin Oberman <rkoberman@gmail.com> To: Hans Petter Selasky <hps@selasky.org> Cc: multimedia@freebsd.org Subject: Re: Audio recording from USB Message-ID: <CAN6yY1vEYogeJAeq6Qg=PSCNA71gsJfYSM2Qte-sdJrkpJs6cQ@mail.gmail.com> In-Reply-To: <04571f73-7c5b-ec4e-ced1-dfbf723d7378@selasky.org> References: <CAN6yY1tf7quSaCe7PzCaA5MN39UG8ge_mRF8zvxssOVR%2BYh-Mw@mail.gmail.com> <07c88807-a86b-4c33-c418-e0e15ddc4f80@selasky.org> <CAN6yY1vZ8MjRCvPaCsLSmH7zDTwZ3NMHWzTndduAmxOL%2BTZ55w@mail.gmail.com> <04571f73-7c5b-ec4e-ced1-dfbf723d7378@selasky.org>
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On Fri, Jul 6, 2018 at 12:40 AM, Hans Petter Selasky <hps@selasky.org> wrote: > On 07/06/18 02:00, Kevin Oberman wrote: > >> Oops! Sorry of hte empty message made it through. >> >> On Thu, Jul 5, 2018 at 12:47 AM, Hans Petter Selasky <hps@selasky.org> >> wrote: >> >> On 07/04/18 23:41, Kevin Oberman wrote: >>> >>> I have an Audio-technia turntable with USB output and I want to use >>>> audacity to record from it. I have read the sound, mixer, and snd_uaudio >>>> man pages, but am still unable to get the configuration correct. sndstat >>>> shows the device (pcm4) but mixer only lists pcm0, the Conexant CX20590, >>>> which is marked as default in sndstat. >>>> >>>> Messages on connection: >>>> uaudio0 on uhub3 >>>> uaudio0: <BurrBrown from Texas Instruments USB AUDIO CODEC, class 0/0, >>>> rev >>>> 2.00/1.00, addr 3> on usbus1 >>>> uaudio0: Play: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Play: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Play: 32000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Record: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Record: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Record: 32000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Record: 22050 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Record: 16000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: Record: 11025 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >>>> uaudio0: No MIDI sequencer. >>>> pcm4: <USB audio> on uaudio0 >>>> uaudio0: HID volume keys found. >>>> >>>> Installed devices: >>>> pcm0: <Conexant CX20590 (Analog 2.0+HP/2.0)> (play/rec) default >>>> pcm1: <Intel Cougar Point (HDMI/DP 8ch)> (play) >>>> pcm2: <Intel Cougar Point (HDMI/DP 8ch)> (play) >>>> pcm3: <Intel Cougar Point (HDMI/DP 8ch)> (play) >>>> pcm4: <USB audio> (play/rec) >>>> >>>> mixer -f /dev/mixer4 shows: >>>> Mixer vol is currently set to 75:75 >>>> Mixer pcm is currently set to 75:75 >>>> No line or mic. >>>> >>>> I tried "cat /dev/dsp4.0" and got the expected stream of "junk" that >>>> looks >>>> like it is getting data from the turntable. "junk" changes when I play >>>> something, so I think the hardware is all working to some degree. >>>> >>>> Can anyone suggest where to go from here? >>>> >>>> >>> Did you try: >>> sysctl -a hw.snd.default_unit=4 >>> >>> --HPS >>> >> >> >> Yes, but... >> >>> mixer >>> >> Mixer vol is currently set to 75:75 >> Mixer pcm is currently set to 75:75 >> >> So mixer seems to "see" mixer4, but still only shows vol and pcm. No input >> device. Bringing up the mate sound preferences, I only see the on-board >> mic for input, but see the USB device for output. I'm a bit baffled as to >> why the mixer fails to any USB input even though the connection message >> clearly shows that capability. >> > > The mixer might not always have a node for input. You can try to dump the > sysctl tree, grepping for pcm. There might be some hidden ones under .mixer > . > > --HPS > I see: dev.pcm.4.rec.vchanformat: s16le:2.0 dev.pcm.4.rec.vchanrate: 48000 dev.pcm.4.rec.vchanmode: fixed dev.pcm.4.rec.vchans: 1 There is no indication that a "line" or any mixer input (rec) is created. The only .mixer values are for play entries which exist in the CODEC chip, but go nowhere: dev.pcm.4.mixer.mute_1.desc: USB AUDIO CODEC dev.pcm.4.mixer.mute_1.max: 1 dev.pcm.4.mixer.mute_1.min: 0 dev.pcm.4.mixer.mute_1.val: 0 dev.pcm.4.mixer.vol_0_1.desc: USB AUDIO CODEC dev.pcm.4.mixer.vol_0_1.max: 0 dev.pcm.4.mixer.vol_0_1.min: -16384 dev.pcm.4.mixer.vol_0_1.val: -7261 dev.pcm.4.mixer.vol_0_0.desc: USB AUDIO CODEC dev.pcm.4.mixer.vol_0_0.max: 0 dev.pcm.4.mixer.vol_0_0.min: -16384 dev.pcm.4.mixer.vol_0_0.val: -7261 I am not familiar with the sound subsystem design, so I have no idea what part should be doing this. In a slightly unrelated issue, is any way to get the uaudio device to disconnect when I unplug the device without killing Mate? The man page describes this. I get continual messages: pcm4: Waiting for sound application to exit! pcm4: unregister: mixer busy The mate-settings-daemon and mate-volume-control-applet programs keep connections to uaudio open. I can kill the volume applet, but killing the settings-daemon just results it a new settings-daemon starting and the device not being desconnected. Restarting Mate does result in the device being disconnected. Just an annoyance, but one I'd prefer to live without. -- Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkoberman@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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