(registered 2008-08-06, last updated 2018-11-15) Name : William Zou Email : bill.zou&dts.com MIME media type name : Audio MIME subtype name : Vendor Tree - vnd.dts.hd Required parameters : The following parameters are required: profile: - DTS - DTSHR - DTSMA - LBR - MULTI1 - MULTI2 profile is a required parameter. profile=DTS indicates the DTS-HD is coded using Coherent Acoustics and does not exceed 1.5 Mbits/sec. profile = DTSHR indicates that the stream consists of a Coherent Acoustics core and at least one extension and total bit-rate exceeds 1.5 Mbits/sec profile = DTSMA indicates that the stream is variable bit rate and contains lossless audio. The stream may exceed 6 Mbits/sec. profile=LBR indicates that the stream is coded using the DTS LBR codec. profile = MULTI1 indicates that the stream does not exceed 6 Mbits/sec and the basic presentation type should be read from btype. profile=MULTI2 indicates that the stream may exceed 6 Mbits/sec and the basic presentation type should be read from btype. btype must be one of the following: DTS DTSHR DTSMA LBR The parameters for these btypes are described under "profile." For DTS-HD audio streams consisting of a multiple audio objects (profile=MULTI1 or MULTI2) the btype indicates the type of base audio object that all DTS-HD decoders are able to decode. For DTS-HD audio streams consisting of a single audio object the btype=profile. Optional parameters : None Encoding considerations : binary This media type may require encoding on transports not capable of handling binary. Security considerations : This media subtype consists of audio samples; it does not contain any commands, control sequences, executable content nor any other material the misuse of which could result in a security vulnerability. No security risks are introduced by this media subtype aside for those associated with any media format (for example, transmission of a frame larger than the receiver can handle). This media subtype does not specify any privacy or additional integrity services; thus, such methods should be implemented in the upper protocol levels. Other security considerations, if any, have not been assessed. Interoperability considerations : None Published specification : BDA System Description Blu-ray Disc Read-Only Format Part 3 Audio Visual Basic Specifications (2005-03) DVD Forum DVD Specifications for High Definition Video, DTS-HD Reference Information (Version 1.0, 2005-08) Applications which use this media : Applications for encoding and decoding digital audio in packaged media, digital broadcast and content distribution. Additional information : 1. Magic number(s) : None 2. File extension(s) : .dtshd 3. Macintosh file type code : None 4. Object Identifiers: None Person to contact for further information : 1. Name: Phillip Maness 2. Email: phillip.maness&xperi.com Intended usage : Common High quality audio compression ranging from lossy to lossless Change controller: Xperi Corporation, c/o Phillip Maness, phillip.maness&xperi.com