On Mon, Jun 25, 2012 at 10:53:34AM +0200, Gregor Best wrote: > Hi people, > > I'm trying to get recording from the mic input of my laptop working, but have > not have success so far. I'm using a thinkpad laptop > with an azalia device and a pretty run of the mill headset, attached to > headphone out and microphone in. The headset itself works > fine on other machines and the microphone input and headphone output of the > laptop work fine hardware-wise (i.e. tested with another > operating system). On OpenBSD however, the mic input remains silent. Files > recorded with aucat -o foo.wav remain silent for the > entire recording duration, as if the mic was somehow muted. Below is the > output of mixerctl:> > outputs.spkr_source=dac-0:1 > outputs.spkr_mute=on > outputs.spkr=125,125 > outputs.spkr_eapd=on > outputs.hp_source=dac-0:1 > outputs.hp_mute=off > outputs.hp=155,155 > outputs.hp_dir=output > outputs.hp_boost=off > outputs.mic_dir=input-vr80 > inputs.beep_mute=off > inputs.beep=108 > inputs.mix_source=dac-0:1,mic,hp > inputs.mix_dac-0:1=125,125 > inputs.mix_mic=215,215 > inputs.mix_hp=125,125 > record.adc-0:1_source=mic > record.adc-0:1_mute=off > record.adc-0:1=253,253 > outputs.hp_sense=plugged > outputs.mic_sense=plugged > outputs.spkr_muters=hp > outputs.master=157,157 > outputs.master.mute=off > outputs.master.slaves=spkr,hp > record.volume=255,255 > record.volume.mute=off > record.volume.slaves=adc-0:1 >
this seems correct at first glance; could you see whether the recorded file is full of silence (zeros) or noise (numbers close to zero)? aucat -o /tmp/foo and then: hexdump /tmp/foo |less noise would mean that there's a level knob to crank, while zeros would suggest that something in the recording chain is disabled. > As you can see, all recording related devices are at full volume and no device > is muted except for the built-in speakers. Is > recording on azalia devices simply not supported or am I missing something > really obvious here? recording is supposed to work. I don't have azalia, so both of us might be missing something obvious :) -- Alexandre
