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Questions tagged [alsa]

Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system.

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13 views

Linux ALSA intel_hda_snd on Celeron J4115

first of all thank you for the attention. I already uploaded info about my cconfiguration in the following link http://alsa-project.org/db/?f=10a60835f6027cf2e6eb06a319895739f2cccd34 The PC is a ...
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7 views

Chromium not detecting ALSA loopback subdevices as microphones

I want to pipe the sound output from one Chromium tab to another, which should receive it as input as if it came from a microphone. For that, I created a virtual loopback sound card using sudo ...
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6 views

Buffer issues with Alsa

I am having some strange issues with audio on Linux and it seems like my crash course from Google is not cutting it. I have three USB audio devices on a PC (through a USB hub which is powered), only ...
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19 views

A nightmare with headphones: the audio is reproduced both by speakers and headphones

At the beginning my headphones didn't work. In Settings/Sound the only output device is the pair of speakers. After having tried certain commands related to another question I have installed ...
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24 views

Only one side of my headphones works

The distro I'm using is Arch, and my headphones are Sony's WH-H910N model. These headphones are connected by a jack rather than using bluetooth, and they work properly with or without this jack on ...
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1answer
47 views

Accesssing, reading and writing other user's file and directory as my own

There are other answers like: centos - Linux: Create a user than can access other users' files - Super User, but they don't talk about accessing those files from GUI application. My question is more ...
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1answer
47 views

Understanding ffmpeg recording input types from devices

Using pactl, I get the following sinks: pactl list sinks short # 0 alsa_output.pci-0000_00_1f.3.analog-stereo module-alsa-card.c s16le 2ch 44100Hz SUSPENDED Since there's but ...
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1answer
16 views

Capturing audio on a cloud VM (Debian)

I've followed a bunch of guides regarding ALSA, Pulseaudio, JACK, etc., but none have seemed to work. I'll be specific with what I'm trying to do. On a cloud-based Debian VM, I want to: Open a stream ...
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71 views

VMWare no sound

I have Debian Buster amd64 installed as guest in VMWare Fusion on Big Sur host. My problem is, I do not get any sound. Sound output in principal should work (I also have a Win7 guest with working ...
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29 views

Setting audio permissions at reboot and login automatically

I have a group of sound devices in a server that I would like to be accessed by some users. So, I made (with root permissions, i.e. sudo): setfacl -b /dev/snd setfacl -b /dev/snd/* chmod 777 /dev/snd ...
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1answer
12 views

How can I be sure that my auido isn't down sampled?

I want to play audio without downsampling or without any resampling? How can I do that? My audio files are 192kHz and 32 bits. I wan to play those music files without losing quality. My DAC supports ...
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100 views

Sound not working on Alfawise X5 with Linux Kernel 5.4.0-60-generic

I have an Alfawise X5, which has two sound devices installed, one is HDMI sound delivered by the Intel Atom X5-Z8350 processor (a system on a chip, Cherry Trail series), and a headphone jack that ...
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1answer
392 views

Pulseaudio loopback into headphones

I have headphones and a mic attached to my computer. My headphones are tight and block out external noise far too well, and so I find myself shouting at the mic. Is there any way of setting up ...
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28 views

Cannot record using any program

I cannot record my screen either using SSR (simple screen recorder) or OBS studio for recording. I tried: sudo apt-get --purge --reinstall install pulseaudio checking out audio settings from ...
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252 views

How can I forward local sound from a Docker container to a remote Pulseaudio server?

I am running Airsonic inside a container and wanting to forward its local sound output to a Pulse audio server on the same network. This idea works pretty well when I run Airsonic as a regular system ...
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55 views

How to force usb audio device to be detected by alsa/pulse under linux

I am not sure I post properly, but cannot find help. I have Allen-Heath Xone:2d It works ok under windows/asio, but I'd like it to be recognised under linux. dmesg: [92687.189073] usb 3-1: new high-...
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1answer
103 views

Redirect arecord output and send it with netcat

I am trying to redirect sound from a microphone from one computer to another in my local network. I did following to achieve that In one terminal: arecord -t raw -c 2 -f S16_LE -r 48000 | nc -u #...
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14 views

How to change alsa sound output name

Alsa volume controller of spotifyd uses 'Master' for output and does not work on a PI. Checking alsamixer I saw that the output is called headphone. How can I change this value?
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18 views

ALSA snd_pcm_hw_params_any crashed when auto-run from startup script

I downloaded the ALSA sample source codes (https://gist.github.com/ghedo/963382) and test running under putty window, it works. However when put into the startup script (eg. rc.local) with or without &...
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123 views

how to use alsa device hw:0 on xubuntu

I have an audio processing sw designed to use alsa's hw:0 device. On my xubuntu machine I get the same error as this command line: $ aplay -D hw:0 440.wav aplay: main:830: audio open error: Device or ...
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12 views

Audio not playing in an application with setreuid() & setgid(), but works with sudo -u command

I have a Arch Linux system with alsa and pulseaudio configured. alsa is set to use pulseaudio default device. Pulseaudio is rumming with tcp module enabled on 127.0.0.1 and anonymous set to true. The ...
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68 views

puppeteer chrome alsa output webrtc

I'm using puppeteer with chrome. When I use the flag --alsa-output-device=hw:0,0 I can hear the audio on my speaker from normal audio like this sample but I can't hear anything from a WebRTC session. ...
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21 views

If I plug in external earbuds, it only works the internal mic

This issue happens in every Linux distro I have tried. My earbuds mic is recognized and works on Windows. My earbuds are the simple PS4 ones: [url]https://www.amazon.com/Official-Sony-Playstation-...
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19 views

Mic not working depending on when ALSA reads configuration

I'm on an ALSA-only system, and I've been using the snd-aloop module loaded at startup to record desktop audio. I am not an expert in ALSA configurations, and I have copied an .asoundrc which seems to ...
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24 views

Firefox ESR Web Audio Gone After Alsa Packages Removed

I removed alsa-utils and alsa-tools. Desktop audip plays without trouble. However, I noticed web audio had stopped in Firefox ESR, Assuming my removal of alsa the problem, I replaced both packages and ...
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15 views

Restrict audio devices seen per application

Programs like Microsoft Teams, Skype seem to randomly select audio devices, and I often spend the first minutes of a call going to the settings and selecting the correct microphone, or going through ...
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790 views

Is there a way to improve sound quality in Linux?

Total noob here, I did do some research before posting this question here, been using Linux since long and not satisfied by the audio quality that the Windows Counterpart provides (proprietary Dolby ...
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20 views

Can I use Devuan or Ubuntu repositories with MX Linux?

I'm struggling with sound issues in MX Linux (no sound through HDMI...) due to a kernel regression; the only feasible solution seems to be add instructions into file ~/alsa-base.conf, but package alsa-...
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232 views

Clone sound from Chromium to ALSA Loopback and also speakers

I have working setup on my RPi3 B+ with Raspbian where is sound from Chromium browser send directly to ALSA Loopback device (enabled by modprobe snd-aloop as kernel module) by this Chromium's ...
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1answer
354 views

How could I find out what sample rate/bit depth my headphones are capable of?

I'm using some USB headphones (Sennheiser GSP 350) and want to make sure that I am using the highest sample rate and bit depth possible for them. I ran pacmd list-sinks and it said that I'm using 16 ...
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1answer
115 views

No audio devices under linux

I'm using Fedora 32, but the issue started from version 31: I simply do not see any sound device under Settings -> Sound.1 These are the outputs from commands I have seen requested on the internet ...
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32 views

Audio recording from two audio input and playing in 2 audio output simultaneously and real time

I have one Linux Machine with 2 USB speakers and a mic system. I want to record simultaneously from one mic and play in another speaker. Like, MicA recording will be played in SpeakerB and MicB ...
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1answer
780 views

ALSA setting microphone levels

I have an USB handset that I am trying to record from and depending on settings I want to mute the device. The only controls that amixer provides is: amixer -D hw:1 Simple mixer control 'PCM',0 ...
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85 views

ALSA/Pulse connect to microphone alias for remapping channels

I'm using Manjaro Linux, and I have a mono USB microphone that ALSA treats as stereo (It identifies it as a Q1U dynamic microphone, but it is a different mic that clearly uses the same DAC), with the ...
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24 views

Phantom jack detected in front panel

On my PC, dual boot (Windows, Linux) I have an annoying problem: from time to time (like every 15 seconds) my system(both windows, and Manjaro) detect the insertion of jack in the front panel. It also ...
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2k views

“Non-monotonous DTS in output stream” when capturing video with ffmpeg

I'm trying to capture VHS video on Linux using a new USB capture device and FFMPEG.  I'm able to successfully capture either only audio (using Alsa), or only video (using v4l2) but when I try to do ...
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1answer
95 views

ALSA not playing sound over speaker

I have an application that sends voice packets of PCM data from one node to another. The program also plays a wav file at the startup. The wav file is heard but none of my audio. I added the following ...
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1answer
482 views

Issue with Bang & Olufsen speakers on Kubuntu 19.10

First of all, I am aware that this problem is very widespread and still hasn't been fixed, despite it being years old. I am also aware that this question is a duplicate of tens of other questions like ...
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1answer
920 views

No Audio output in Linux Mint 19.2 Xfce 64x(Intel HDMI/DP LPE Audio soundcard)

I am using a fresh install on my laptop. After setup, there was no audio output and the pavucontrol app was giving me the message: Establishing connection to PulseAudio. PLease wait After hours ...
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36 views

How to mute only back panel audio?

I have a desktop PC where the front and the back panel are available. Usually the front is for headphone while the back for speakers. This PC's headphone detection is not working so I need to create a ...
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156 views

no recording happens using bluez-alsa and sco profile

I am trying to record from Bluetooth headset. I have included bluez-alsa package along with my other yocto packages and compiled. when I try to arecord, the recording is not happening and a sound or ...
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3k views

ALSA Error: ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card

Hey there dear community, I have been struggling with getting a Raspberry 3b+ and microphone setup to run for a few days now, interestingly getting the same error on both projects simultaneously even ...
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137 views

Alsa external io plugin not working with pulse aludio

I am developing ALSA plug-in based on ALSA PCM External Plugin SDK. Plug-in is source plug and has to convert PDM signal from microphone input to PCM used by Linux. I have succeeded to compile it ...
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1answer
828 views

Difference between alsamixer and amixer's output about the percentage of Master

I'm trying to write a bash script to find the percentage of the sound volume. I used this: amixer get Master | awk '/Mono.+/ {print $6=="[off]"?$6:$4}' This command prints the volume percentage of ...
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1answer
845 views

How to get alsa dummy soundcard on debian in Docker

I am trying to configure a dummy sound card in a Debian docker container. Unfortunately the documentation I find on the internet is incomplete and old. I was mainly looking at this post on reddit and ...
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1answer
543 views

No master in alsamixer

I have problem with sound in Arch Linux; alsamixer worked well for one month. Then after a reboot, I can't find Master and other controls. Here is a screenshot: I installed Xubuntu and the sound ...
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77 views

Pulseaudio device name changes

I would like to set my default sink/source in pulseaudio but the name constanly changes. It's either alsa_input.pci-0000_00_1f.3.stereo-fallback or alsa_input.pci-0000_00_1f.3.analog-stereo and ...
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65 views

Synchronize multiple realtime inputs

I'm trying to record a video+audio using ffmpeg from 3 sources: x11grab (desktop), v4l2 (webcam) and alsa (microphone). I'm using this script: #!/bin/bash set -x out=$1 rm -vf $out rate=25 cam_size=...
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1answer
2k views

Ubuntu 19: No sound at the Headphone Jack - Audio

I've a problem with the sound at the Headphone jack on my Optiplex 9020m after installing Ubuntu 19.04 on it. Here is what alsa says. My soundcard is not in the list, and lspci | grep -i audio ...
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878 views

Sound card driver not detected on Linux Mint 19.1

This question may be a duplicate, but I have tried the suggestions given elsewhere to address this problem and nothing has helped. Here is my system info: System: Host: justin-Z97M-D3H Kernel: 4....

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