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Playing with ALSA loopback devices | Playing with Systems
https://sysplay.in/blog/linux/2019/06/playing-with-alsa-loopback-devices/
Interestingly, audio loopback could also be achieved in user space using alsaloop from alsa-utils package. Here is a demo of the same. From the output of aplay -l, hw:1,0 is the analog out (speaker). Note that hw:1,0 is same as …
no audio recorded from alsa loopback device - Stack …
https://stackoverflow.com/questions/66226759/no-audio-recorded-from-alsa-loopback-device
I've been tried to get an alsa loopback device working (to test an application that reads audio) following the instructions here: The device is enabled using: >aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA ...
Audio loopback in ALSA - RC Groups
https://www.rcgroups.com/forums/showthread.php?2210989-Audio-loopback-in-ALSA
Audio loopback in ALSA. 20 years after it began, someone finally figured out how to route the audio output in ALSA back to an audio input. The sequence for recording from a Firefox player is: modprobe snd_aloop. FLASH_ALSA_DEVICE=hw:1 firefox.
ALSA Configuration of Loopback Device | No Suck
https://nosuckdotorg.wordpress.com/2017/02/13/alsa-configuration-of-loopback-device/
ALSA Configuration of Loopback Device 2017-02-13 Utility alsa, audio, ffmpeg, linux # NoSuck.org # 2017年02月13日、05時13分 # This file demonstrates ALSA configuration for a loopback device that simultaneously saves both input and output. Thanks go to debianuser from #alsa on the Freenode network for providing guidance. aplay -L | grep ‘^sysdefault’
No Audio recorded with FFMPEG ALSA Loopback - Stack …
https://stackoverflow.com/questions/53870226/no-audio-recorded-with-ffmpeg-alsa-loopback
I am trying to record screen with audio. I played an mp4 file with audio and video in browser and I tried the command specified here, and tried to save output to mp4 as well as mkv files. But the screen records with no audio. I have installed Alsa loopback with. sudo apt-get install linux-image-extra-virtual. modprobe snd-aloop.
pulseaudio - ALSA Loopback not recording system audio on ...
https://unix.stackexchange.com/questions/550207/alsa-loopback-not-recording-system-audio-on-xubuntu-18-04-in-ffmpeg-command
ALSA Loopback not recording system audio on Xubuntu 18.04 in ffmpeg command. Ask Question Asked 2 years, 2 months ago. Active 11 months ago. Viewed 1k times 1 I have an ffmpeg script to do my screencasts. I have Debian 9 at the office and Xubuntu 18.04 at home. On those two operating systems, the following works to record system audio and from ...
Recording Speakers Through ALSA Loopback / Multimedia and ...
https://bbs.archlinux.org/viewtopic.php?id=251591
Recording Speakers Through ALSA Loopback. Hi, I've been trying to record system sound through an ALSA loopback to no success. I am trying to use ffmpeg, though I suppose arecorder should work as well. I followed this guide, which …
How do I route audio to/from generic ALSA-using ...
https://jackaudio.org/faq/routing_alsa.html
Using an ALSA Loopback device and JACK alsa_in/alsa_out clients This more complex but probably more robust approach is well-documented in this document. Using the ALSA JACK PCM plugin The simpler approach has its drawbacks: if an application stops playing audio, it will disappear from the JACK world, which can be quite inconvenient.
Support an audio copy using ALSA on Moode (>= 7.1) · …
https://github.com/antiprism/mpd_oled/issues/65
The Loopback device loads as first sound card for me at boot, which would mean no playback ausio, and so I force it to be not first by creating the file /etc/modprobe.d/alsa-base.conf and adding the line options snd-aloop index=-2 Reboot and enable either graphic equaliser, then run mpd_oled with a command like mpd_oled -o6 -c alsa,hw:Loopback,1
Some pulseaudio config is missing · Issue #2 · …
https://github.com/jakemoroni/audio_async_loopback/issues/2
D: [alsa-sink-CA0132 Analog] protocol-native.c: Implicit underrun of 'Audio Async Loopback' D: [alsa-sink-CA0132 Analog] sink.c: alsa_output.pci-0000_04_00.0.analog-stereo: Found underrun 1208 bytes ago (1332 bytes ahead in playback buffer) D: [alsa-sink-CA0132 Analog] sink.c: alsa_output.pci-0000_04_00.0.analog-stereo: Found underrun 1208 ...
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