Refers to VLC 2.1.2 Rincewind, Win 7 x64
I have just upgraded from VLC 2.0.8 and have discovered that VLC is once again not properly supporting DTS files, either as stand alone or when enclosed in a container for movie viewing.
In brief VLC will play DTS-HD Master Audio files but NOT DTS Digital Surround files, either as stand alone or in a container. In a container the video plays without any issues.
When played in a container the following message is displayed (sample only):
dts debug: emulated sync word (no sync on following frame): 726054f3
dts debug: emulated sync word (no sync on following frame): 6b7c0a12
dts debug: emulated sync word (no sync on following frame): d6461449
dts debug: emulated sync word (no sync on following frame): c3bea5d7
When played as a stand alone file the following message is displayed:
No suitable decoder module:
VLC does not support the audio or video format "undf". Unfortunately there is no way for you to fix this.
Additionally the file type/suffix is not fully supported, DTS files may end in either .dts or .dtshd. These are interchangeable but .dtshd should be recognised/supported as well.
I have listed the various various DTS formats below, using the same wav input files, DTS-HD High Resolution also works but it is not possible to test the other formats without making changes to the input wav files.
DTS-HD Master Audio, up to 7.1 channels of variable bit rate lossless compression, sampling rates of 48 kHz, 96 kHz and 192 kHz, with backwards compatible, constant bit rate substream. Only available for Blu-ray Disc destination format. For 192 kHz source material, supports 2.0 to 5.1 channels.
DTS-HD High Resolution Audio, up to 7.1 channels lossy compression, bit rates up to 6 Mbps for Blu-ray. Only available in Blu-ray Disc destination format.
DTS-ES, up to 6.1 discrete channels at bit rates up to 1.5 Mbps. Available in all destination formats except for Blu-ray Disc Secondary Audio
DTS 96/24, up to 6.1 ES Matrixed channels, at bit rates up to 1.5 Mbps from source files with a sample rate of 96kHz. Available for Blu-Ray and DVD destination formats.
DTS Digital Surround up to 5.1 channels, at bit rates up to 1.5 Mbps for DVD. Available with all destination formats except for Blu-Ray Secondary Audio.
DTS-HD Express (Low Bit Rate). For Blu-Ray Secondary Audio up to 5.1 channels.