Raspberry PI I2s out of sync left vs right sine wave output.

[brunogiovs]

Hello .

I did some test with RuneAudio , Volumio on a RP-pi B and RP-pi 2 using a wolfson audio card and a Audiophonics DAC Sabre ES9023 and coaxial output SPDIF of the wolfson audio card to a external dac.

All tests give the same problem ... when I put a test tone of let say 1khz the right channel isn't in sync with the left channel.
I also tested RuneAudio on a RP-pi 2 using a usb external dac. and the signal was in sync.

So I'm guessing there is a bug on the I2S implementation for RP in general.

Anybody did similar tests ? maybe in other platforms...

[hondagx35]

Hi ,

very interesting.

Tomorrow i'll rip a test cd and hook up my scope.

Frank

[rofo]

I have found the same issue. please see my post digi-audio-cancellation-t1365.html

[maxonline]

[hondagx35]