Atmos

[K.S.LEE]

Hi,

If MKV File contains Atmos audio and convert to Bluray Format (with BDMV and CERTIFICATE Folder) using tsmuxer, will the tsmuxer decode the Atmos audio and play it on a bluray player? By the way, can a bluray player plays Atmos audio?

Thanks for your reply.

Lee

[Cornucopia]

Atmos audio for the Home is piggybacked on top of existing Dolby codecs (Dolby TrueHD, Dolby Digital Plus), so as long as those are not changed internally in any way, if the coded bitstream is passed-through unprocessed form a BD player or similar media device, via HDMI to a Atmos-capable receiver (which would also do the TrueHD or DD+ decoding), it will render the sound objects in real-time during playback so that it mixes in with proper channel proportions into your current multi-channel speaker setup.

It will NOT work if the file is "converted". - Corrupts the decode.
It will NOT work if the stream is transferred via SPDIF/TOSLink (currently) or Analog or other non-HDMI methods. - Bandwidth not capable.
It will NOT work if your BD player reverts to "secondary audio", when present (rare). - Skips the aux data.
It will NOT work with standard A/V receivers (the receiver is the "renderer", so it needs to specifically be Atmos-enhanced). - Needs to include a decoder/renderer at the sink.

The Atmos sound objects (soundfile+positioning+timing data) are encoded as auxilliary/user data packets inside those existing codec streams. Not ALL of the sound is Atmos-encoded, just the elements that need to be showcased/repositioned/manipulated and those are mixed in with the standard/static multichannel stream.

Scott