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Posts posted by d2x
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i feel like i should chime in since this thread partly concerns my releases.
i use xdelta patches over providing audio files because the patches provide more than just audio; they also provide a signs/songs-only subtitle track since those parts still require a translation. they also prevent people from being silly and muxing the audio with other releases since it's not synced to them.
i do not use audacity for cutting lossy audio. i avoid transcoding audio in my workflow unless i need to splice in audio from another source and it uses a different codec/sample rate/etc.
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How are you splitting the audio and video? With mkvmerge? If that's the case, then it isn't frame perfect unless you manage to find a cut at a keyframe.
if you are splitting audio and video, yes. however, if you are splitting audio only, you can split at any audio frame boundary.
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But AviSynth outputs uncompressed audio stream, just like Audacity. There's literally no diffference.
i'm not outputting from avisynth; it's purely for synchronization. the actual audio splitting/splicing is done on the compressed streams using mkvmerge.
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the audio is split at the trim points.
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i'm a bit more careful

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>sync based on video
>frame perfect
No.
if synchronizing one source with another to the point where every frame matches isn't frame-perfect sync, then i don't know what is.
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if the source audio is lossless, pretty much any old audio editor (e.g. audacity) can get the job done.
if the audio is lossy and/or i want to sync based on video, i use a set of custom scripts in conjunction with avspmod and mkvmerge to achieve frame-perfect sync with little to no quality degradation. i might post a guide for it one day.
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noticed people posting my releases here so i thought i'd check it out.
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[SOLVED] What is xdelta3?
in Feedback & Assistance
Posted
funi broadcast dub sources don't provide lossless audio