My soft to do the test in the related post was only over extracted ac3, then the duplicated frames detected was bit-identical.
But, of course, we can use timestamps to decide when delete extra frames.
The big audio frame is for AC3 code with 32 ms, then we can guarantee +-16 ms of async, for me is unnoticeable because is less than the duration of a video frame (40 ms at 25 fps). With DTS we can obtain +- 6 ms.
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BeHappy, AviSynth audio transcoder.
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