[SOLVED] Pi Zero, PWM (analogue) output

[Nachteule]

I do not have Pi Zero, so I do not have any practical experience with such device

(10th Apr, 2017 09:16 AM)TheDutypaid Wrote:  Sorry 'PWM'

I am making a project where I am putting a Pi Zero into an old portable TV. Using XBian as I have found getting a composite signal from the other KODI's was tricky and this on has a nice big interface. the screen is very small.

The big problem I am having is the audio, I made the RC filter for the Zero and added "dtoverlay=pwm,pin=18,func=2" to the config file. But still no audio.

I'm sure you know this article
But you forgot to assign second channel. However, I don't believe that this is the problem

Quote:I have tested the sound is working on the TV, which is fine. Not sure if I screwed up the filter or it is a software problem.

Test without filter

Quote:I noted in the read me file,

"Name: audioinjector-wm8731-audio
Info: Configures the audioinjector.net audio add on soundcard
Load: dtoverlay=audioinjector-wm8731-audio
Params: <None>


Name: audremap
Info: Switches PWM sound output to pins 12 (Right) & 13 (Left)"

I think I understand you need to put some text into the config file, but I'm unsure what?

I suppose audremap overlay did not exist when above linked article was written.

So, did you already added

Code:

dtoverlay=audremap

to config.txt without adding dtoverlay=pwm,pin=18,func=2 to that file and use pin 12 and 13 for audio output?

Btw, which sound device are you using in Kodi? You have to use Analogue output