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.
