2015-10-23, 19:01
(2015-10-23, 18:54)Skank Wrote: Anyone can explain in a simple way why pi doesnt do bitstream hd audio?
is this cause of the hardware that is too weak or?
The Pi and Pi 2 hardware doesn't support a high-enough audio bandwidth over HDMI to support the standard required to bitstream HD Audio. (DTS HD and Dolby True HD require a very high bandwidth connection, even if they are running at a much lower bitrate)
It DOES have a high enough bandwidth to support PCM 5.1/7.1 output of 48 and 96kHz 24 bit audio - which means that the massive majority of HD audio tracks can be losslessly decoded to PCM 5.1/7.1 and output to your amp this way. (Effectively the Pi 2 does the decoding, instead of your amp.) The only tracks that can't be losslessly decoded and output as multichannel PCM are 192kHz 5.1/7.1 tracks (again because of the HDMI audio bandwidth limitation of the Pi's hardware) There are probably less than 20 Blu-ray releases (less than 10?) that have these kinds of sound tracks. The Pi / Pi 2 can cope with up to 4.0 192kHz 24 bit audio.
