Please provide both sample files (so I can check what is different) else I can not understand well the issue and how I could answer to this issue. Isn't it what you are looking for? What is missing in this output? In any case, "MA" and "ES" are detected, so you can see when it is MA and when it is ES from my point of view. In MediaInfo, Extensions and Core streams are detected and displayed, example with 5.1 Core stream and 6.1 lossless master audio part:Ĭhannel positions : Front: L C R, Side: L R, Back: C, LFE / Front: L C R, Side: L R, LFEĬhannel(s) : 6 channels (note: it is buggy, it should be "7 channels / 6 channels")ĭTS can have a 6.1 Core (not decodable by a 5.1 only DTS decoder) or 5.1 Core + 1.0 extension (in that case, a 5.1 only DTS decoder decodes 5.1), and output from MediaInfo is different (Core is displayed with 7 channels in the first case, Core is displayed with 6 channels in the second case)įor DTS-ES, I display both channel config (there is a small bug in the count of channels, I just remarked it, I'll correct it) Audio: format, codec id, sample rate, channels, bit depth, bit rate, language. Video: format, codec id, aspect, frame rate, bit rate, color space, chroma subsampling, bit depth, scan type, scan order. "It is an extension of DTS which, when played back on devices which do not support the Master Audio or High Resolution extension, degrades to a "core" track which is lossy." MediaInfo is a convenient unified display of the most relevant technical and tag data for video and audio files. The converse is true only if you know that the original had a sample rate higher than 48 kHz. So there is no reason DTS-ES stream has a problem with any SMP. DTS Core is limited to 24 kHz waveform, so if you find higher frequencies, you have HD. Using the latest version 2.06 (.exe) with ffmpeg 2.2.2 and Windows 7 64-bit. "decoders which do not understand ES process the sound as if it were standard 5.1" Good Morning Audacity matter dts files regularly but up to a maximum of 6 channels, if you import a file of more than 6 channels, are always returned 6 tracks. We thought maybe the SMP couldn't process 6.1 until I tried to convert one of these files to FLAC and EAC3TO reported that the core was DTS-ESĭTS-ES is backward compatible with normal DTS: Link please, it is easier to discuss when everybody knows what we talk about. Obviously any encoder that employs FFmpeg will have the same issue.He posted the media info data of two files is a good place to ask if you want help finding a tool to convert the file to 8-channel WAV. Don’t just encapsulate the DTS audio in a WAV container, because FFmpeg won’t understand that. If you encode the file as 8-channel WAV, it should import correctly. If they insist the file is properly encoded as eight channels, you can raise a feature request with the FFmpeg developers. I suggest you report the issue to support for your demux tool. I think this also means the file is lossy, because it does not have the difference channels which could be decoded to make it lossless. Stream #0:0: Audio: dts (DTS-HD MA), 48000 Hz, 5.1(side), fltp, 1536 kb/sĪssuming the file is encoded correctly, I suspect the reason is that the two missing channels are implemented as an extension and FFmpeg only reads the six core channels - see (sound_system)#History. I can confirm ffprobe (the FFmpeg analysis tool) sees the file as 5:1 Duration: 00:05:38.60, start: 0.000000, bitrate: 1535 kb/s
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