The DTS-HD Master Audio Suite served the same function before the introduction of DTS:X, and can still be used for DTS-HD MA that does not carry DTS:X. ДTS-HD MA audio, including DTS:X audio, can be created and edited using DTS's DTS:X Encoder Suite. A DTS-HD MA decoder simply performs this process in reverse. Finally, the residual data is compressed losslessly and merged with the core into one bitstream. Next, this lossy audio is decoded and compared to the master, with 'residual' data being recorded wherever the two differ. First, the audio master is fed to a DTS CA encoder, which generates the core (lossy) audio stream. Encoding process ДTS-HD MA is encoded in three steps. A DTS-HD MA bitstream carrying DTS:X can contain up to 9 simultaneous sound objects, which are dynamically mapped to a user's speaker system during playback, unlike the rigid number and placement of speakers required by channel-based surround (a DTS marketing executive referred to DTS:X in an interview as 'whatever.1'). ДTS-HD MA is the encoding format for DTS:X, an object-based surround-sound format that competes with Dolby Atmos. Alternatively, even if a player is MA-capable, the base stream may be needed for backward compatibility with an older AV receiver (for example, one manufactured during the DVD era). This is the reason for the bifurcated nature of a DTS-HD MA audio stream DTS CA, unlike its MA extension, is mandatory, so a player that is not MA-capable can automatically default to an MA-encoded disc's base DTS stream and simply ignore the supplementary data. The Blu-ray specification stipulates DTS-HD MA as an optional codec, which means that some Blu-ray hardware may not decode it. A DTS-HD MA bitstream may have a bitrate no greater than 24.5 Mbps (instantaneous), of which no greater than 1.5 Mbps may be lossy DTS (as per the DTS CA specification). Although DTS-HD MA, and the related DTS-HD, allow virtually any number of channels in the abstract, these limits are imposed for practical reasons of limited storage and bitrate availability. DTS-HD MA can store up to 8 discrete channels of audio ( 7.1 surround) at up to a 24 bit sample depth and 192 kHz sampling frequency (96 kHz for 6.1 or 7.1 surround).

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