Quote:
Originally Posted by Skelsgard
Not necessarily. That's only assuming it's a Hollywood movie. If the DVD is original PAL (instead of a PALed NTSC), like a french or UK movie, then the audio pitch IS correct in its source.
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Yes, if pitch is correct in PAL audio we can preserve the pitch with
Code:
NicAC3Source("audio.ac3")
TimeStretch(tempo=96.0/1.001)
If the pitch is previously changed and need recover the original pitch is better use TimeStretch(rate=96.0/1.001) and best use:
Code:
NicAC3Source("audio.ac3")
SSRC(50050).AssumeSampleRate(48000)
without phase problems (TimeStreetch work fine with stereo audio but with 5.1 there are phase problems between channels)
This last method is equivalent to eac3to slowdown.
Quote:
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If Aften is accepting FLOAT, then he can strip it off or else take it to ConvertAudioTo32bit().
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Aften accept all formats, then better preserve the original 32 bits float output from NicAudio. Don't put any ConvertAudioToX.
BTW, avs2wav always crash in my systems. An alternate method is use Wavi:
Code:
Wavi audio.avs - | aften -b 448 - stretched_audio.ac3