[pulseaudio-discuss] what is still missing?

[Sergei Steshenko]

Since you have a problem with 'arecord', it's an ALSA issue - isn't it ? 
Ask the ALSA users list first.

--Sergei.

On 11/02/2023 11:40, Matti Riikari wrote:
> I've ended up in dead end. Recording from default input produces just 
> white noise. Everything is seemengly correct, but what is still missing?
>
> I have a Deltaco UAC-03 USB sound card.
>
> /etc/pulse/defaul.conf:
> set-default-source 
> alsa_input.usb-GeneralPlus_USB_Audio_Device-00.mono-fallback
>
> pacmd list-sources | grep -e 'index:' -e device.string -e 'name:'
>
> * index: 5
>     name: <alsa_input.usb-GeneralPlus_USB_Audio_Device-00.mono-fallback>
>         device.string = "hw:2"
>
> parecord --record test.wav
>
> When recording, pacmd list-sources shows the correct  source is activated:
> Source #5
>     State: RUNNING
>     Name: alsa_input.usb-GeneralPlus_USB_Audio_Device-00.mono-fallback
>     Description: USB Audio Device Mono
>
> But the sound file is an empty recording. Checked with alsamixer mic 
> is not muted.
>
>
> Empty recording also by
> parecord --record 
> --device="alsa_input.usb-GeneralPlus_USB_Audio_Device-00.mono-fallback" 
> test.wav
>
> and
> parecord --record 
> --device="alsa_input.usb-GeneralPlus_USB_Audio_Device-00.mono-fallback" 
> --volume=40000 --channels=1 test.wav
>
> Same for
> arecord test.wav
>
> and
> arecord --device="hw:2" test.wav
>
> vumeter switch shows the truth, nothing is coming in. What am I missing?
> arecord --vumeter=mono test.wav
> Recording WAVE 'out.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
> #+                                                 | 00%
>
>
>
>
> Thanks for any help to solve this.