Questions tagged [alsa]
For questions pertaining to ALSA, the Linux sound subsystem. ALSA sits below advanced systems like PulseAudio.
219
questions
0
votes
0
answers
32
views
ALSA issue with Raspberry Pi 4b and voice recognition
I get the following error, and it does not return the speech_recognition information:
Expression 'GetExactSampleRate( hwParams, &defaultSr )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: ...
0
votes
0
answers
15
views
Configuration of iqaudio digiamp+ on Matlab
I try to implement a simple Simulink-model on my Raspberry Pi 4 model b . For this, I have a simple sine wave with 1/8000 sample time wich I pluged into an ALSA Audio Capture Block.
When I try to run ...
0
votes
0
answers
39
views
ES audio not working (Retropie)
I'm running RetroPie on my Pi 4 4GB. I recently installed PIXEL through the RetroPie setup program, and now the sound doesn't work. If I exit ES and use aplay to play an audio file, it plays fine. But ...
0
votes
0
answers
20
views
Get Jackd to coordinate with ALSA and AudioInjector Octo?
I am attempting to run the AudioInjector Octo on a Raspberry Pi 4, running the Raspberry Lite OS.
My understanding is that ALSA manages AudioInjector - but that I also need jackd to send audio from my ...
0
votes
0
answers
44
views
Audio output not working with cli
I am using Raspberry pi OS with raspberry pi 4. I have an application which uses playsound with python to play an audio file created by gTTS library. I am using a usb sound card card 2 which has a ...
- 1
1
vote
0
answers
96
views
Can I connect to bluetooth audio and send audio OUT while using an external sound card for audio IN?
Sometime ago I used this helpful tutorial: How can I use an external USB sound-card and set it as default?
to set my external USB sound card as my default. This has been great for me as I use external ...
- 11
0
votes
0
answers
38
views
Help down mixing stereo into two separate mono channels
I have a Raspberry Pi Zero W configured as an AirPlay audio playback device for personal use. I am using the Adafruit Speaker Bonnet (https://www.adafruit.com/product/3346) which interfaces to the Pi ...
1
vote
0
answers
125
views
Alsa mixer won't save setting
I have UGREEN usb audio interface.
MY pi 4 is recognize it but no sound is comnig out. I try both via VLC player and via youtube (the video won't even play)
I did the follow:
I wrote at terminal: sudo ...
- 11
0
votes
0
answers
283
views
SteamLink fails to fully start due to vague initialization error
I’ve been trying to get SteamLink working on my RPi 4 with Bullseye ‘Lite’/headless installed. I’m able to get steam to startup, download the necessary packages, and even load enough to finishing ...
- 295
0
votes
1
answer
197
views
How to change bit depth to 16 of I2S MEMS Microphone?
I have successfully setup adafruit I2S mem microphone on my RPi3 running buster by following this guide .
It records audio well using arecord :
arecord -D 'plughw:2,0' -c1 -r 48000 -f S32_LE -t wav -V ...
- 211
-1
votes
1
answer
91
views
Surely I can run sox with alsa without pulseaudio
Why would I want to do that? because pulseaudio isn't needed (presumably) and pulseaudio does not want to run as root. In theory I should be able to run pulseaudio --system to fix the problem, but I ...
- 117
0
votes
1
answer
1k
views
Send audio output to Bluetooth speaker
I am working on a Python script that lets Raspberry Pi 4 play audio announcements (mp3 format) at specified times. I am using the Python OS library to send the play audio commands to system.
The aplay ...
- 111
1
vote
1
answer
141
views
Cannot start jackd with a low period size - ALSA fails
I'm attempting to build a multi-effect guitar pedal out of a Pi-4B (8GB), and am running into problems getting jackd running with reasonably low latency.
It runs fine as long as the period is set to ...
- 121
0
votes
1
answer
177
views
Analog audio out when starting from /etc/rc.local
I am working on a python program that I am having some issues with. When the user presses a button a video starts playing. I need the audio to come from the analog jack. It works perfectly when I run ...
- 21
1
vote
0
answers
266
views
How to config default input/output devices in ALSA config file(~/.asoundrc)?
I am trying to configure microphone and speaker for raspberry pi 4. I edited "~/.asoundrc" file like that:
pcm.!default {
type asym
playback.pcm "plughw:0"
capture.pcm &...
- 9
0
votes
1
answer
205
views
Set two sinks with pulseaudio
I have two raop speakers that I can stream audio to from my Raspberry pi using Pulseaudio and AirConnect. At the moment, I can set either one as the default sink and it works as expected. I would like ...
- 101
1
vote
2
answers
449
views
Alsa passthrough Digital In to Analog Out
I have a LogiLink USB Soundbox 7.1 connect to a raspberry pi running rasbian and I want to passthrough the input of S/PDIF In to Speaker Front.
I found this: Possible to route audio directly from usb-...
- 111
0
votes
1
answer
210
views
PCM1808 I2S arecord gets1153x too much data
I have a stock Pi 3B with all Raspbian updates. From various sources I've tried to cobble together alsa recording from an inexpensive PCM1808 device at 8K 24 bit stereo. To do this, I've used the ...
- 101
2
votes
0
answers
308
views
Raspberry Pi 3 B+ with Raspberry Pi OS (32 bit) screen fades out while booting
I've installed the official 7" touch screen on my Raspberry Pi 3 B+. I used the Raspberry Pi Imager to put Raspberry Pi OS (32 bit) on a SD card and while booting, the screen fades out to a black ...
- 121
0
votes
1
answer
150
views
Is it possible to override OmxPlayer's volume in RetroPie/EmulationStation?
I have my RetroPie EmulationStation set up to be 40% volume which makes for some good game volumes on my Picade's speaker. However, for the game snaps, I cannot hear the audio at all.
When I look at ...
- 101
0
votes
1
answer
188
views
ALSA: Why is the pitch of played sounds too low (½ the original frequency)?
I've just installed a fresh Raspbian Buster on My Raspi 3B+ together with a JustBoom DAC HAT sound card. With the old Raspbian installation, sound output went well after a couple of experiments, but ...
- 454
2
votes
0
answers
302
views
High-speed USB Audio Streaming
I am using a Raspberry Pi 3B+ as the USB host for an embedded device that I have configured to appear as a USB Audio 2.0 compliant microphone.
I am currently using PyAudio for opening and recording ...
- 46
2
votes
1
answer
363
views
Unable to get Qt5 audio to work using pulseaudio on Rpi 4
I'm on Raspberry pi 4 and the OS is DietPi
I configured ALSA so I could play an audio file successfully through HDMI using aplay [an audio file]
Then launched the PyQt5 app but got PulseAudioService: ...
- 31
1
vote
1
answer
359
views
Raspberry Pi 2 Model B v1.1 alsa & jackd Headphone Jack Configuration
My end goal is to do headless remote audio streaming with jacktrip on some older Pi 2 boards using the built-in headphone jack (I know the quality of it is lacking but I don't really care).
To narrow ...
1
vote
0
answers
838
views
Sound playback trough bluealsa-aplay not working as a service
I am trying to manually setup my raspberry pi 4 as a Bluetooth audio receiver, but there is no sound playback when I start the bluealsa-aplay service I created. It only works when I run the bluealsa-...
1
vote
1
answer
11k
views
How can I change the audio output device from the command line?
I want to be able to change the audio output device (hdmi or aux) from the command line, preferably, without having to sudo. I'm on a RPI4 with Raspbian-lite Buster.
On the RPI3 I was able to use ...
- 187
0
votes
0
answers
2k
views
How to force audio output to HDMI/3.5mm jack on RPi4 B via CLI?
on RPi 3 we are using something like amixer cset numid=3 1 and then alsactl store to force sound output to jack 3.5mm and store configuration.
I want same thing on my RPi4 model B, but it does not ...
- 115
0
votes
2
answers
125
views
Why is a Justboom DAC HAT no longer recognised after an upgrade to a Raspi 3B+?
I recently replaced my faulty old Raspi 3B with a 3B+, attached the two HATs I've got (a JustBoom DAC HAT sound card and an S.USV Advanced), plugged the SD card into the new one, upgraded the Raspbian ...
- 454
0
votes
0
answers
383
views
Live streaming camera and microphone input on a Raspberry Pi 4
I got a a Raspberry Pi camera and a USB microphone connected to the Raspberry Pi 4. All of them are working seperately. But now, I would like to stream them live and combined for accessing it in HTML. ...
0
votes
1
answer
411
views
Record USB System Audio and Send to Named Pipe
I am trying to get audio to LedFx, a controller for sound reactive LEDs. One of the ways it can read audio through its docker container is through a named pipe. The command ffmpeg -y -i http://wms-15....
- 53
1
vote
1
answer
445
views
Duplicating audio in pure ALSA for playback on local device and streaming via trx
I am trying to achieve a multi-room audio setup in my house using Raspberry Pis. How can I get VLC playing simultaneously out the local headphone port while also streaming it to other devices via trx?
...
1
vote
1
answer
243
views
volume control quirk for Tenx TP6911 Audio Headset
On a fresh install of 2021-01-11-raspios-buster-armhf-lite with dmesg an older, cheap, generic "3D SOUND" USB audio stick for headphone and microphone is detected as
[ 480.467295] usb 1-1: ...
- 153
2
votes
1
answer
1k
views
IQAudio DAC+ appears to be installed, but does not play audio. How to debug?
I recently installed an AudioIQ DAC+ device on my RPi3b+ running buster.
Following the directions in the user guide, I was able to get to the point that the drivers are loaded and appear to run, but ...
- 108
1
vote
0
answers
120
views
Dupe output to multiple cards
I am following the https://alsa.opensrc.org/Asoundrc Dupe output to multiple cards example on 2 stereo usb sound cards.
I changed things slightly but basically its the same as the above and 1 card ...
1
vote
0
answers
63
views
How to play through bluetooth speakers with RPi renderer on lan and openhome/linn android phone control point
Using RPi3b and clean installation of RaspberryPi OS Lite and connecting to network using lan.
Media is stored on NAS and served to lan by minimserver.
I have installed upmpdcli and mpd on RPi and ...
- 11
1
vote
0
answers
94
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?
- 200
0
votes
0
answers
540
views
how do I set the recording volume using alsa
Is there a guide somewhere on how to use the pi sound system? It would be good to have something definitive as there is lots of stuff out there that contradicts, and it is not like I want to do ...
- 117
0
votes
0
answers
2k
views
How to set default ALSA input/output in pusleaudio on LibreELEC?
I'm using Raspberry Pi 3 Model B as LibreElec for Kodi. My Pi is connect on TV on HDMI. In kodi, when I select audio outputs HDMI or Jack it play sound well. But when I select Pulseaudio, it don't ...
1
vote
1
answer
271
views
ALSA recognizes external sound card but still cannot produce sound
I recently purchased a Pi4 and a HiFiberry DAC+ADC as an external sound card. I followed this link HiFiberry Config to set up the hardware. However, even tho aplay -l listed the hardware, the system ...
- 37
1
vote
0
answers
100
views
Respeaker 4 install on Pi 3b and buster
I have just bought a respeaker 4 and successfully installed it by the looks of things - I have respeaker under the audio icon input tag.
It is the classic rubbish install process with the script just ...
- 117
0
votes
0
answers
221
views
No sound with Jitsi Meet and ALSA
For a project I'm using a Raspberry Pi with ALSA. ALSA is configured and speaker-test provides me audio output. However, when I open Jitsi Meet in Chromium, there is no sound. When I open YouTube in ...
- 101
1
vote
1
answer
132
views
Scratchy audio with certain wav files
I'm using a Raspberry Pi 4 with an Adafruit I2S Stereo speaker bonnet. I've run their setup script and rebooted many times.
I can play sample mp3 files just fine. They usually sound great. (I've had ...
- 516
1
vote
1
answer
398
views
I want to allow two instances of mPlayer to play music over a single bluetooth link to a speaker
I have an application which makes two uses of playing two files at the same time. The first is where it plays a white-noise file very quietly and continuously so that the sound-card does not go to ...
1
vote
1
answer
71
views
Audio cuts out periodically when using audio hat
I am currently live streaming some audio to and from a raspberry Pi Zero W using the waveshare audio hat however I have found that the audio periodically cuts out when I do this. When I used my logic ...
- 133
1
vote
3
answers
7k
views
sound output stuck on HDMI (working)
I cannot get any output to use the 3.5 mm headset jack it is stuck on HDMI.
There are lots of questions on here that ask about the headset jack connector not working and have answers on howto switch ...
- 27
0
votes
0
answers
65
views
Shoddy and horrible audio performance and support on Raspbian Lite
My audio on the Raspberry Pi 1 (Yes, I have an original model) on my Raspbian 10 Lite installation works, but only barely. Allow me to explain.
I picked Raspbian 10 because I wanted to set up my own ...
1
vote
0
answers
498
views
Play audio on two sound cards at the same time
I currently try to setup my raspberry pi 3 with a HiFiBerry DAC+ Pro XLR (using Raspian based on Debian 10).
I installed the sound card and configured alsa to use device 1 as new default. Restarted ...
- 111
2
votes
1
answer
2k
views
Read Incoming Bluetooth Audio On Pi With Python
this is my first post on here! I am trying to make my raspberry pi 3 a bluetooth speaker which synchronizes beat of the music being played from a phone to an LED light strip. For the LED light ...
- 21
1
vote
2
answers
325
views
Can I use Raspberry Pi as a USB speaker?
Now I have
A: Desktop PC with Arch Linux
B: Raspberry Pi 3 with Raspbian Buster connected with a speaker
and I'd like to use B as a wired speaker of A. By "wired", I mean that A and B are connected ...
- 141
0
votes
0
answers
269
views
Route Audio from SPDIF Input to 5.1 USB Soundcard (raspbian)
So I'm very new to audio stuff, but my setup is the following:
Any HDMI device --(via HDMI)--> TV --(via SPDIF)--> USB Sound Card (input) --> RaspberryPi --> USB Sound Card (3x3.5mm Audio Jack (Front,...
