I usually have to do this if I boot the Pi with an HDMI cable plugged in. To force the Raspberry Pi to use the analog output : amixer cset numid=3 1 Where is the required interface : 0=auto, 1=analog, 2=hdmi. You can force it to use a specific interface using : amixer cset numid=3 n Parameters can be specified after the module name.īy default the output is set to automatically select the default audio interface (HDMI if available otherwise analog). # This file contains the names of kernel modules that should be Then add ‘snd-bcm2835’ so it looks like this : # /etc/modules: kernel modules to load at boot time. If the module isn’t loaded automatically when you boot then you can force it to load by using the following process : cd /etc
If it isn’t then run the following command : sudo modprobe snd_bcm2835 The first thing to do is run : lsmod | grep snd_bcm2835Īnd check snd_bcm2835 is listed. So I decided to hook up a rechargeable powered speaker I had using a short 3.5mm jack plug lead and see if I could play some WAV and MP3 files.
#Wrong sound effect mp3 drivers#
One thing that has changed in the latest Raspian image is that the alsa sound drivers have improved and are enabled by default. I’m making slow progress with my remote controlled car project but I figured I might as well shoe-horn some audio in there as well. So I decided to take another look as I wanted to start adding some audio to my experiments. Things have moved on a bit with the Raspbian image since I wrote my Raspberry Pi Speakers & Analog Sound Test post.
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