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Loosing audio after combining may .wav's

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Anytka

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Here is my situation, I have season one of stargate by the episode, .d2v's for video, and uncompressed .wav's for audio. I want to make an avisynth script that simly returns all the episodes with audio in order. I have tried two different approaches in avisynth, both of which work great for video, however, audio works after 15 episodes are appended to each other, but when I add a 16th, I loose the audio. Opening the .avs in virtualdub and checking the file information shows an audio stream, however it contains 0 audio samples. Here is a sample of how I am trying to do it. I did try other methods, however they resulted in audio async, and also exibited the same 15 episode combine limit on loosing audio. audiodub(mpeg2source("ep101.d2v"),wavsource("ep101.wav")) ++ \ audiodub(mpeg2source("ep102.d2v"),wavsource("ep102.wav")) ++ \ audiodub(mpeg2source("ep103.d2v"),wavsource("ep103.wav")) ## etc, etc Is there an internal limit on audio run through avisynth?

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Message # 1 05.07.24 - 15:00:47
RE: Loosing audio after combining may .wav's

SK1NN3R

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How long is an episode, and what is the sample rate of audio ? Audio is requested by sample number, which are (signed) 32bit integers. For instance at 48 KHz, maximum audio duration is (2^31-1)/48000 seconds, which is about 12h 25m We can't do much about that. Why do you need to append all of them together ?

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Message # 2 05.07.24 - 15:10:48
RE: Loosing audio after combining may .wav's

Lenochka_V

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That explains it then, as the last step that works turns out to be 11h55m. Add appx 45 min to it, ie one more episode and it doesnt work. Is there any reason why this variable has to be signed? I wouldn't think an audio sample would ever be negative would it? I had wanted to do all the episodes at once like this for a number of reasons, one it would average the bitrate over all the episodes, and not just one at a time. Two, I would have more control over the number of cd's I aim for, if I use cd's, and it would be ideal for creation to dvd's. In the mean time, I will test doing the encodes with the 11h55m .avs to see if that works.

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Message # 3 05.07.24 - 15:20:41
RE: Loosing audio after combining may .wav's
WavPack, Wav, BWF - metadata chunk : Previous topicNext topic: 192 I/O Word Clock Question
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