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Old 15th May 2013, 18:45   #1  |  Link
Thranduilion
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5.1/7.1 dts audio (isolating the streams)

Hi! I know that NicAudio has a Downmix2Stereo function, but is there a way to isolate the individual streams instead?

My goal is to (more or less) compress the musical score without compressing the dialogue. I don't expect any of the streams to be purely one or the other, but I'm guessing some of them will emphasize the music over the dialogue.
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Old 15th May 2013, 19:43   #2  |  Link
wonkey_monkey
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I've not used nicaudio with DTS, but I have used it with AC3 and you can call getchannel to select the channels you want. For example (this is just off the top of my head):

Code:
nicac3source("my5.1.ac3")
getchannel(3) # center channel, mono
getchannel(3,3) # center channel, dual mono (for mixing with other stereo sources)
getchannel(1,2) # left/right only
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Old 16th May 2013, 05:55   #3  |  Link
Thranduilion
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It worked beautifully with both 5.1 & 7.1 dts.
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Old 16th May 2013, 10:29   #4  |  Link
tebasuna51
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Take in mind than NicDtsSource() don't have full support for DTS-HD audio (7.1 must be always DTS-HD), only try (not always work) to decode the 'core' (5.1).

The recommended method to manage DTS-HD is first decode the DTS-HD, with eac3to+ArcSoft, to WAV or W64 and after open the WAV/W64 in AviSynth with RaWavSource().
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Last edited by tebasuna51; 16th May 2013 at 10:39.
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