Hi,

Did you follow these instructions: https://github.com/Audio-Injector/stereo-and-zero   ?

The above must work before anything else will.

73,
Ron / W4MMP
On 1/30/2021 23:13, Jonathan Markevich via People wrote:

Thanks Ron,

Unfortunately that doesn't work... it's all in that link I mentioned. 

I tried the manual setup and the script setup, but...

- "aplay -l" shows the device - just the audioinjector device...

- "dmesg" shows the driver is loaded

- jack will not work and

- when I kill jack and try "aplay piano2.wav" (for example) I get nothing.

I just want to rule out hardware at this point, I've reflashed the OS about a dozen times so far (just in the process of flashing raspbian stretch just in case)...


Hi,

One thing I found early on is that I2S, I2C and the correct overlay is
configured.  Also the default audio configuration for the RPi must be
disabled.   Edit the /boot/config.txt and make sure the follow is in
that file:

dtparam=i2c_arm=on
dtparam=i2s=on
dtoverlay=audioinjector-wm8731-audio
#dtparam=audio=on

73,
Ron / W4MMP

On 1/29/2021 15:54, Jonathan Markevich via People wrote:
> I just got a Stereo card today for my 3B+ but it makes no sound despite many attempts.  I was hoping to get this working with a Patchbox OS/MODEP setup but first I want to make sure the card is working.
>
> What’s the absolute basic OS setup for me to try it?  Is this still valid: http://forum.audioinjector.net/viewtopic.php@t=3&start=130.html#p8688