Analog sound problem. Raspberry Pi

Question

I'm trying to play mp3 files with mpg321, mpg123 and omxplayer with hdmi, it works fine, but it doesn’t work with the analog audio jack. I installed alsa-tools and alsamixergui

I set the audio jack output:

sudo modprobe snd_bcm2835 sudo amixer cset numid=3 1 

I am testing speakers with

 speaker-test -t sine -f 600 

and it works well, I hear a sound, but when I try to play an mp3 file using

 omxplayer bubbling_water_1.mp3 mpg321 bubbling_water_1.mp3 

no sound is heard, the same mp3 file plays normally with hdmi output

 sudo amixer cset numid=3 0 

or

 sudo amixer cset numid=3 2 

but nothing happens at the output of the analog connector any help?

Answer 1

I noticed the same problem. I have not found a permanent solution yet, but the following works for me:

 omxplayer -o local file.mp3 

The sound comes out via HDMI, by the way, and the local -o flag forces it to go linear (local).

Answer 2

I had a pulsudio installed in my Raspberry Pi, so I had to use the option described here :

amixer -c 0 cset numid=3 1

-c 0 indicates which card to use. It worked for me.

I also set the volume to maximum using alsamixer just in case, but I'm not sure if this was necessary.

Answer 3

Just run omx with the --vol switch. omxplayer --vol -1000 filename and you will notice the difference. Volume range 0 to -6000

Answer 4

Run

 sudo amixer cset numid=3 1 

to redirect the output to the 3.5 mm jack

 last digit 0 = auto 1 = 3.5 mm 2 = HDMI 

Answer 5

It is also important to note that omxplayer does not use the default alsa setting (which is set by raspi-config). By default, it is in automatic mode, which means that if HDMI is connected and the EDID reports sound support, then it uses HDMI, otherwise it is analog (headphone jack). (See issue ).

 omxplayer -o local 

or

 omxplayer -o hdmi 

can be used to override this parameter. This is why omxplayer can give different results than other players like mpg123.