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Audio goes out of sync with avisynth+ tfm script ...
https://forum.videohelp.com/threads/398625-Audio-goes-out-of-sync-with-avisynth-tfm-script
Audio goes out of sync with avisynth+ tfm script. The filters work pretty good on the video but the audio goes out of sync. After the filters have done the work obviously the video's actually shorter than it was by a long way so the audio ends up overrunning it. Being a beginner at all this I'm in way over my head at this point as my previous ...
FindAudioSyncScript - Avisynth wiki
http://avisynth.nl/index.php/FindAudioSyncScript
FindAudioSyncScript. From Avisynth wiki. Jump to: navigation, search. I would like to share this script as an approach to finding the appropriate DelayAudio value to use to correct lip sync errors in video material. It has always been a pain trying to find the right delay offset by simply tweaking the delay and watching the results over and ...
Audio Sync for MP3 and AAC files in AVISynth - Doom9's …
https://forum.doom9.org/showthread.php?t=156200
The AAC files will be decoded with DirectShow and FFAudioSource twice (once as a transport stream, once as a MPEG-4). The WAV file will be decoded with WAVSource. All of these WAV form videos will then be stack on top of each other so the sync of the different decoding methods can be checked. MP3 - http://otakuvideo.com/~quu/AVS_Audio...seline …
Avisynth+ QTGMC audio out of sync - digitalFAQ Forum
http://www.digitalfaq.com/forum/video-restore/10577-avisynth-qtgmc-audio.html
The issue is that audio is out of sync. In the beginning it's not very noticeable but closer to the end audio is ahead by a few seconds. No such issue on the source file or when souce file is encoded without avisynth. I tried to figure out the reason and I found that Media Player Classic provides this info on the source file (Ctrl + G):
AssumeSampleRate - Avisynth wiki
http://avisynth.nl/index.php/AssumeSampleRate
AviSource("video_audio.avi") # Let's say that this clip loses audio sync: # by the end, the audio is behind by 200 milliseconds. Ar = AudioRate # original audio sample rate dur = AudioDuration # total duration in seconds adj = -0.200 # correction needed (decrease audio duration by 200 msec) # Adjust audio duration: AssumeSampleRate ( Round (dur / (dur+adj) * Ar)) # Video and audio …
FPS - Avisynth wiki
http://avisynth.nl/index.php/FPS
The audio data are not touched by this filter. Audio will remain synchronized, although the length of the audio data may slightly differ from that of the video data after the conversion. This is because the output can only contain an integer number of frames. This effect will be more pronounced for shorter clips.
DelayAudio - Avisynth wiki
http://avisynth.nl/index.php/DelayAudio
DelayAudio(clip, float seconds). DelayAudio delays the audio track by seconds seconds.seconds can be negative and/or have a fractional part.. Example: # plays audio half a second earlier DelayAudio(-0.5) PS: if audio loaded from separate file (for example WavSource), it's better do negative delay after AudioDub this clip, or else it may cause problems.
DirectShowSource - Avisynth wiki
http://avisynth.nl/index.php/DirectShowSource
DirectShowSource. From Avisynth wiki. Jump to: navigation, search. DirectShowSource reads media files using Microsoft DirectShow, the same multimedia playback system that WMP (Windows Media Player) uses. It can read most formats that WMP can, including MP4, MP3, most MOV (QuickTime) files, as well as AVI files that AVISource doesn't support (like DV type 1, or …
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