Rasplex does not play DTS

Hi,
I use as raspberry with rasplex 0.41.I simply want to play a film with the original DTS audio format streamed.The decoding should take place within the AV receiver with S/Pdif input.
I did this already with the Plex PS3 media client. But with the PS3 only AC3 is possible.
So I thought this should be an easy task with the raspberry pi.
I used the S/Pdif splitted from the HDMI output of the raspberry. Although I am an experienced user , I was unable to get DTS running.The HDMI output always delivers PCM on 5 channels, although I marked DTS as available (within rasplex) and set the HDMI output to 5.1.(within rasplex)
It turned out that the plex transcoder delivers 5 channels PCM decoded, but that does not help me because my AV amplifier is in Prologic mode with PCM multichannel input.

This leads me to the following questions:
What is the decision matrix for the transcoder in general ?
Where can I see to what format the transcoder transcodes ?
Why does the transcoder delivers PCM and not DTS as requested ?
And finally how to solve my problem.

Thanks in advance for the answer.

@strassbgb said:

Hi,
I use as raspberry with rasplex 0.41.I simply want to play a film with the original DTS audio format streamed.The decoding should take place within the AV receiver with S/Pdif input.
I did this already with the Plex PS3 media client. But with the PS3 only AC3 is possible.
So I thought this should be an easy task with the raspberry pi.
I used the S/Pdif splitted from the HDMI output of the raspberry. Although I am an experienced user , I was unable to get DTS running.The HDMI output always delivers PCM on 5 channels, although I marked DTS as available (within rasplex) and set the HDMI output to 5.1.(within rasplex)
It turned out that the plex transcoder delivers 5 channels PCM decoded, but that does not help me because my AV amplifier is in Prologic mode with PCM multichannel input.

This leads me to the following questions:
What is the decision matrix for the transcoder in general ?
Where can I see to what format the transcoder transcodes ?
Why does the transcoder delivers PCM and not DTS as requested ?
And finally how to solve my problem.

Thanks in advance for the answer.

Rasplex 0.4.1 is a very old version, suggest you upgrade to 0.7.0, DTS pass through to AV receiver works fine without the need to transcode over HDMI when configured correctly, make sure you go RPi->AVReceiver->TV using all HDMI connections.

See here RasPlex Installers – RasPlex

Regards

Thanks, upgrade to 0.7 solved the problem.