2015-05-06, 10:10
(2015-05-06, 03:24)Milhouse Wrote: The Pi1/Pi2 HDMI supports 8 channels up to 96Khz (or 4 channels at 192kHz), any more than this and it will resample down.
However virtually all DTS HD MA tracks on BluRay are 96KHz or below, so this 192Khz limitation shouldn't be a problem for the vast majority of users.
I think I only have one 5.1 192kHz Blu-ray. Akira - which is Dolby True HD. 192kHz multichannel is very rare as it can take up more bandwidth than a decent quality video track, and very few movies are recorded or mastered in 192kHz (there are also strong reservations as to whether it actually makes things sound worse in some set-ups - as you can get all sorts of harmonic issues)...
(Uncompressed 5.1 192kHz 24 bit audio is around 28Mbs, Uncompressed 5.1 48Kz 16 bit is around 4.6Mbs... Lossless Dolby True HD or DTS-HD MA Compression will get these down a bit - but not massively. For comparison - many VIDEO tracks are around the 15Mbs, and broadcast H264 HDTV is around the 8-13Mbs range usually...)
