Questions tagged [alsa]
ALSA (Advanced Linux Sound Architecture ) is an API of audio functions for the linux platform.
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Why is the audio group missing from www-data under nginx/php-fpm?
TL;DR I am trying to make aplay play a wav file. This requires the current user to be in the audio group. It works fine when I invoke it from a logged in user, even when I su -u www-data but the nginx/...
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How to control volume for 4-channel audio with alsaloop when softvol plugin only supports 1 or 2 channels?
I’m working on audio forwarding between sound cards on my development board using alsaloop. Previously, I used a 2-channel configuration, which worked fine with the softvol plugin for volume control. ...
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Bit perfect audio on Debian 13
I am trying to install bit perfect audio. Up to and including Debian 11 that was not much of a problem.
However, now I am on Debian 13 (Trixie) and Pulseaudio and Pipewire are giving me a hard time.
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ALSA devices disappeared from OBS Studio after reinstalling it under Flatpak
I have been using OBS studio under Manjaro (archlinux based) OS and it worked all well so far.
Recently I started streaming on Youtube but I noticed that the button "Connect Account" wasn't ...
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Playing an audio file using Procmail does not work (no audio card found)
I have a strange issue on my Debian server. I am receiving mails with Postfix and "Procmail" for the user notfall. After a mail was received, the script from Procmail should play an audio ...
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Whenever audio is playing, I'd like to close a relay powering a speaker. Where and how can I attach a hook to do that?
I'd like to run 32-bit Raspberry Pi OS Bullseye on a Raspberry Pi 2B system headless, with it receiving audio from various sources (e.g. S/PDIF input from TV, through acting as a Bluetooth speaker, or ...
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my synth that uses ALSA has poor audio quality on SOME pcs
I've written a softsynth on kubuntu (well, it's a flatpak) that uses ALSA to render the samples.
On my main pc that goes to a USB mixer it works fine.
On my second pc that goes to a straight audio ...
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How to remove ALSA mixer entries?
I'm trying to make I2S on a Raspberry Pi, and I had to edit ALSA config files (/etc/asound.conf and ~/.asoundrc) a lot. Now, because of the changes I did to the config files, I now have to entries for ...
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View available config options (hw params) like rate and channels for an ALSA device
When I try to record from a hw ALSA device that does not support the expected parameters, it shows me which formats are available:
arecord -D hw:0,0
[...]
Available formats:
- S16_LE
- S24_LE
Then I ...
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Sound Card Master Audio Channel doesnt impact Output Sound
i have a new laptop and thought ill try using Arch Linux for the first time and everything except the audio works like a charm, which was unexpected.
My Problem is that, if i try to change the volume ...
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Pipewire does not detect USB sound card found by ALSA, but it used to
I was attempting to connect to a Google Meet call on my browser (Chromium) and where it would normally have found my USB audio device (a USB dongle that I can connect a microphone and line-out/speaker ...
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Why Pulseaudio won't start?
I tried reinstalling that lib and cleaning ./config/pulse but nothing helped.Also, running pavucontrol gives an error related to PulseAudio. Is it possible for audio to be played only via also without ...
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How do I play multiple different audio files to multiple different speakers using USB soundcards?
I have several 6 different audio files that I'd like to send to 6 different speakers, since I don't have a USB interface with 6 different channels, I would like to use 2 different USB soundcards along ...
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Alsa/jack audio : Confused about alsamixer capture levels generating hard clipping
Not sure if the topic is too audio-specific to be posted here, if so then do tell and I'd appreciate suggestions on proper forums.
My LP recording setup is through an M-audio 2496 card on linux ...
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How do the ALSA snd_pcm_hw_params_set_period_size... functions work?
There are a whole bunch of ALSA functions that start with snd_pcm_hw_params_set_period_size but I do not understand the val and dir parameters. The first two params make sense: snd_pcm_t*pcm and ...
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