[PROBLEM] Dolby Digital/DTS/PCM to SPDIF?

[martinrevert]

(12th Jan, 2013 07:46 AM)JetFn1 Wrote:  I have been trying to extract the Dolby Digital and DTS signal to play 5.1 channels on my home audio receiver. My receiver is capable of both Dolby and DTS but I am unable to extract the Dobly Digital or DTS signal to send over SPDIF optical. I bought this on Amazon, HDMI to SPDIF I get the audio to play Dolby Pro Logic but I cannot get true Dolby Digital or DTS To play in 5.1! The box is just a pass through and does not change the audio format from the HDMI source. I have Dolby Digital and DTS checked in XBMC settings. Any ideas on why I cannot get the 5.1 channels to send through?

Thank you for your time,
Best Regards

Hi JetFn1!

Please add the following line to your config.txt:

hdmi_force_edid_audio=1

I'm quite shure that your HDMI to SPDIF adapter is not returning 5.1 edid data so HDMI audio output on RPi is beeing forced to PCM stereo 2 channels. Remember Keep your 5.1 xbmc settings, HDMI output (not optical or coaxial!) and keep enabled Dolby and DTS capable receivers.

Please, inform here what happens after that change.