Hi
I bought time ago a Logitech webcam, concretely the HD Pro C920.
The thing is that this app (guvcview) records very good video, but with NO AUDIO. I tried different configurations but videos have no sound at all. I proved PULSEAUDIO, PORTAUDIO with hw:2.0 settings, with different sample rates with mono and stereo channels, but i couldnt get anything good as for audio.
what can i do?
for me it coredumps on changing audio to pulseadio … but i am using pipewire here.
On Pulseaudio (default used in EndeavourOS) you need to set the input device to be used, with pavucontrol in configuration tab, and it must show up in input devices and acting:
Make sure only one input device is activated in config.
but i see the same it does not record sound in any way too here…
what gives you?
pactl list sources
Source #8
State: RUNNING
Name: alsa_input.usb-046d_HD_Pro_Webcam_C920_DC6E94DF-02.analog-stereo
Description: HD Pro Webcam C920 Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 32000Hz
Channel Map: front-left,front-right
Owner Module: 7
Mute: no
Volume: front-left: 65841 / 100% / 0.12 dB, front-right: 65841 / 100% / 0.12 dB
balance 0.00
Base Volume: 9619 / 15% / -50.00 dB
Monitor of Sink: n/a
Latency: 638 usec, configured 40000 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "USB Audio"
alsa.id = "USB Audio"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "2"
alsa.card_name = "HD Pro Webcam C920"
alsa.long_card_name = "HD Pro Webcam C920 at usb-0000:04:00.0-2, high speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:04:00.0-usb-0:2:1.2"
sysfs.path = "/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/usb3/3-2/3-2:1.2/sound/card2"
udev.id = "usb-046d_HD_Pro_Webcam_C920_DC6E94DF-02"
device.bus = "usb"
device.vendor.id = "046d"
device.vendor.name = "Logitech, Inc."
device.product.id = "082d"
device.product.name = "HD Pro Webcam C920"
device.serial = "046d_HD_Pro_Webcam_C920_DC6E94DF"
device.form_factor = "webcam"
device.string = "front:2"
device.buffering.buffer_size = "256000"
device.buffering.fragment_size = "128000"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "HD Pro Webcam C920 Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "camera-web-usb"
Ports:
analog-input-mic: Microphone (type: Mic, priority: 8700, availability unknown)
Active Port: analog-input-mic
Formats:
pcm
Source #15
State: RUNNING
Name: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
Description: Monitor of Built-in Audio Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 8
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor of Sink: alsa_output.pci-0000_00_1f.3.analog-stereo
Latency: 0 usec, configured 40000 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of Built-in Audio Analog Stereo"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xdf240000 irq 137"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1f.3"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "a2f0"
device.product.name = "200 Series PCH HD Audio"
device.form_factor = "internal"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
Formats:
pcm