Tag Archives: dts

Experimental XBMC build with digital out of AC3 and DTS over SPDIF

imgresDom Cobley was again working on XBMC and the HiFiBerry Digi. There is now an experimental build that supports AC3 and DTS bitstream output. That means you can now send Dolby Digital and DTS soundtracks to your home theater amplifier over an coax or optical link.

The OpenElec build can be downloaded from here: https://dl.dropboxusercontent.com/u/3669512/temp/OpenELEC-RPi.arm-devel-20140308190048-r17871-g8a2f22b.tar

Note that this is again a very experimental setup. It needed a hack in the XBMC code. This must be fixed in the ALSA driver. While we will work on this, we can’t say, when we will be able to change this.

Check out this article how to configure it. Note that for the HiFiBerry Digi you need the following module configuration:

cat >/storage/.config/modules-load.d/hifiberry.conf  <<EOF

Dolby Digital and DTS bitstream output with HiFiBerry Digi

The HiFiBerry Digi driver is still in development. Stereo output works great even at highest sampling frequencies and bitrates (192kHz/24bit). Today we tested what happens, when we output a DTS or AC-3 bitstream through the HiFiBerry Digi. Would an external decoder recognize the signal? See yourself:

yamaha-dd yamaha-dts

It worked :-) That means there is a good chance, that DTS and AC-3 output will be supported. However, we don’t know yet if standard software like XBMC will be able to use the HiFiBerry Digi.