Questions tagged [alsa]
For questions pertaining to ALSA, the Linux sound subsystem. ALSA sits below advanced systems like PulseAudio.
216 questions
0 votes
0 answers
40 views
Sound on GPIO via pwm on CM4S not working
I am having trouble getting sound running on CM4S. We are using a customised boot2Qt OS with qt 6.9.0 that builds via yocto. Kernel is 6.6.63-v8. That's what the base maintained recipe supplies. We ...
- 109
0 votes
0 answers
49 views
Trouble setting seperate usb audio hardware for alsa input and output
I'm on a pi 5 running a fresh install of bookworm. I'm trying to set one USB interface as my audio output and a second USB interface as my audio input. aplay -l **** List of PLAYBACK Hardware Devices ...
1 vote
1 answer
100 views
Raspberry Pi 5: alsamixer displaying different controls on boot
I have a Raspberry Pi 5 4Gb. I am trying to run a Python script on boot which will allow me to control the volume of my default amixer device (Master) through a slider switch. The script works ...
- 11
0 votes
1 answer
162 views
FFMPEG hangs intermittently before audio recording starts
I'm trying to get FFMPEG to pull both audio from my webcam. It works fantastically, when it does, but is intermittent. I am using the following command: ffmpeg -report -y -f alsa -channels 1 -ar ...
2 votes
0 answers
1k views
No audio over HDMI with latest Raspberry Pi OS Lite official image - raspi-config not working
I use a Raspberry 3B+. After a fresh installation of latest Raspberry Pi OS Lite 64 bit (Bookworm official image : https://downloads.raspberrypi.com/raspios_lite_armhf/images/raspios_lite_armhf-2023-...
- 49
0 votes
1 answer
323 views
BlueALSA audio not playing when initiating connection through bluetoothctl, but does play when connection initiated through device
I use a Raspberry Pi 4 as a bluetooth receiver for audio. I set it up with this script and it works well if the connection is initiated through my phone: Click on the name of the raspberry bluetooth, ...
- 101
1 vote
0 answers
385 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
-1 votes
1 answer
214 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