Curt <cu...@free.fr> writes: > On 2017-08-11, Rodolfo Medina <rodolfo.med...@gmail.com> wrote: >>>> >>> I did. Besides, the USB card does not even work with headphones: when >>> headphones are plugged into it, no sound is heard from them. >> >> >> I had the USB work with headphones doing: >> >> $ mplayer -ao alsa:device=hw=2.0 <file> > >> Can this help to solve also the recording problem...? I get no sound >> recorded doing: > > The wild goose is getting further and further away. > > It's strange to record to the same device number you listened to above, but > who knows?
$ arecord -l **** List of CAPTURE Hardware Devices **** card 1: Generic [HD-Audio Generic], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Generic [HD-Audio Generic], device 2: ALC662 rev3 Alt Analog [ALC662 rev3 Alt Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 > There's only one input device on the dongle. Have you tried recording to > the laptop's mic with the sox command below? Does that work? Is your > microphone busted? Are you singing loud enough (from the diaphragm)? > >> $ sox -t alsa hw:2,0 output.wav Yes everything. Voice is recorded fine if the microphone is plugged into the `mic' entry of the PC, with the command `sox -t alsa default output.wav'. So it is not busted. It's not a matter of loudness either... > ffmpeg -f alsa -i hw:2 -t 30 out.wav > > Thirty seconds. What's this for? ffmpeg complains: [alsa @ 0x562c7a3dbe40] cannot set channel count to 2 (Invalid argument) hw:2: Input/output error > I'd open pavucontrol, select your usb audio dongle's mic as your input > device, How? I see a list of three input devices: Monitor of Built-in Audio Analog Stereo Built-in Audio Analog Stereo CM108 Audio Controller Analog Mono How do I choose the one I want? Each of them has a red button with a check in it, but nothing changes if I click on them... > start singing (after plugging in your microphone), and see if > you can get that input level gauge to start hopping to the tune of your > dulcet tenor arpeggios on the upper end of the Richter scale. Well, no, wherever I click that level does not arise... Thanks, Rodolfo