Date: Thu, 14 Jul 2016 14:38:04 -0400 From: "Charles W. Ross" <cwr@core.cwross.com> To: freebsd-questions@freebsd.org Subject: USB Audio Volume Too High Message-ID: <1468521484.1902241.666492977.004D389B@webmail.messagingengine.com>
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Hi everyone, I have a cheap, generic USB sound card (pcm2 on my system) that is giving me trouble on FreeBSD 10.3. It works just fine, except for the fact that the audio output seems to be at the maximum level (way too high), and I can't seem to adjust it. (I know the card itself is OK because it works normally in Linux). Below I've included some relevant output. My current 'mixer' output: cwr@nuc:~ % mixer Mixer vol is currently set to 0:0 Mixer pcm is currently set to 0:0 Mixer mic is currently set to 0:0 And yet, the output of the device is full-blast. Here are all the relevant sysctls: cwr@nuc:~ % sysctl -a | grep pcm.2 dev.pcm.2.feedback_rate: 0 dev.pcm.2.mixer.mute_3.desc: dev.pcm.2.mixer.mute_3.max: 1 dev.pcm.2.mixer.mute_3.min: 0 dev.pcm.2.mixer.mute_3.val: 0 dev.pcm.2.mixer.vol_2.desc: dev.pcm.2.mixer.vol_2.max: 6096 dev.pcm.2.mixer.vol_2.min: 794 dev.pcm.2.mixer.vol_2.val: 0 dev.pcm.2.mixer.mute_1.desc: USB AUDIO dev.pcm.2.mixer.mute_1.max: 1 dev.pcm.2.mixer.mute_1.min: 0 dev.pcm.2.mixer.mute_1.val: 0 dev.pcm.2.mixer.vol_0_1.desc: USB AUDIO dev.pcm.2.mixer.vol_0_1.max: 17152 dev.pcm.2.mixer.vol_0_1.min: 0 dev.pcm.2.mixer.vol_0_1.val: 0 dev.pcm.2.mixer.vol_0_0.desc: USB AUDIO dev.pcm.2.mixer.vol_0_0.max: 17152 dev.pcm.2.mixer.vol_0_0.min: 0 dev.pcm.2.mixer.vol_0_0.val: 0 dev.pcm.2.bitperfect: 0 dev.pcm.2.buffersize: 0 dev.pcm.2.rec.vchanformat: s16le:2.0 dev.pcm.2.rec.vchanrate: 24000 dev.pcm.2.rec.vchanmode: fixed dev.pcm.2.rec.vchans: 1 dev.pcm.2.play.vchanformat: s16le:2.0 dev.pcm.2.play.vchanrate: 48000 dev.pcm.2.play.vchanmode: fixed dev.pcm.2.play.vchans: 2 dev.pcm.2.hwvol_mixer: vol dev.pcm.2.hwvol_step: 5 dev.pcm.2.%parent: uaudio0 dev.pcm.2.%pnpinfo: dev.pcm.2.%location: dev.pcm.2.%driver: pcm dev.pcm.2.%desc: USB audio And finally /dev/sndstat: cwr@nuc:~ % cat /dev/sndstat Installed devices: pcm0: <Intel Panther Point (HDMI/DP 8ch)> (play) pcm1: <Intel Panther Point (HDMI/DP 8ch)> (play) pcm2: <USB audio> (play/rec) default Any help to adjust the output level of this device would be greatly appreciated! Thanks, Charlie
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