閣下確定他們是討論minidvd?????


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Taric25:
6.1 DTS > multichannel MP2
Hello.
I posted the subject about how to convert AC3 to MP2 for SVCD and still be multichannel. The answer is to use SSRC to convert the AC3 from 48kHz to 44.1kHz and then transcode it to MP2 (MPEG-2 Tile Layer 2) for SVCD by using the AC3 > MP2 utility in ReMPEG.
Now I was wondering how to convert 6.1 DTS to multichannel MP2. My idea is that somehow the DTS could be converted to AC3 and then have that downsampled from 48kHz to 44.1kHz and then use the AC3 > MP2 utility in ReMPEG. The only problem I can see with this is that 6.1 AC3 might be impossible or extremely hard to support. If this is totally impossible, then I suppose that the DTS could be downmixed to 5.1 AC3 and then it could be converted to MP2 for SVCD. Any ideas?
I am using Windows 2000 Professional, a 550 MHz Pentium III with 128 MB of RAM.

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DSPguru:

oops
SSRC is not an AC3 sample-rate convertor, it's a WAVE sample-rate convertor.

the idea of :
48Khz DTS -> 48Khz AC3 -> 48Khz WAV -> 44.1Khz WAV -> 44.1Khz AC3 -> MPEG MultiChannel
isn't a good idea, due to the loss of quality in every step in this chain, which might lead to poor quality on the overall.

i suggest you a better chain :
48Khz AC3/DTS -> (using a decoder)
48Khz MultiChannel WAV -> (using SSRC)
44.1Khz MultiChannel WAV -> (using modified version of rempeg)
MPEG MultiChannel.

as for this ReMpeg program, it tried to work with it and it crashed a few times

as for DTS decoder... any1 ??
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