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systemd - Crackling sound with ALSA from an USB sound card ...
https://unix.stackexchange.com/questions/469372/crackling-sound-with-alsa-from-an-usb-sound-card-after-resuming-from-suspend
After resuming, the USB sound card’s audio output is broken and irregularly produces crackling noises. What is possibly causing this? How can I fix this? Plugging the USB sound card in and out neither produces this issue nor does it solve it. I don’t have a ~/.asoundrc. Some information. Here is the dmesg output
ALSA USB Headset Crackling Noise / Multimedia and Games ...
https://bbs.archlinux.org/viewtopic.php?id=161084
The crackling noises occured only sometimes and only when playing 48kHz sound files. ALSA or PulseAudio made no difference. My onboard card worked fine. I've fixed it by forcing PulseAudio to 44.1kHz regardless of the sampling rate of the file by adding default-sample-rate = 44100 alternate-sample-rate = 44100
202455 – Crackling audio over USB-C monitor
https://bugzilla.kernel.org/show_bug.cgi?id=202455
Created attachment 280863 [details] alsa-info-output (after several attempts to troubleshoot).txt When connected to a monitor via USB-C, sound comes through but is accompanied by persistent loud crackling every 100-200ms.
Problems with USB-Audio device, crackling
https://forums.opensuse.org/showthread.php/484359-Problems-with-USB-Audio-device-crackling
For crackings sound some users try reducing the "crackling" in (some) multimedia apps at the expense of realtime performance, try bypassingPulseAudio's scheduling mechanisms in favor of the traditional interrupt approach ... but with your interrupt message errors, that could make this worse.
Crackling audio playback with PyAudio in jasper-dev ...
https://github.com/jasperproject/jasper-client/issues/404
audio_engine: pyaudio input_device: 'usb-device-0x46d-0x825-usb-audio' output_device: 'bcm2835-alsa-bcm2835-alsa' ./jasper.py --list-audio-devices [Audio device 'usb-device-0x46d-0x825-usb-audio'] Name: USB Device 0x46d:0x825: USB Audio (hw:0,0) Input device: Yes Output device: No [Audio device 'bcm2835-alsa-bcm2835-alsa'] Name: bcm2835 ALSA: …
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