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Audio Sync for MP3 and AAC files in AVISynth - Doom9's …
https://forum.doom9.org/showthread.php?t=156200
Audio Sync for MP3 and AAC files in AVISynth. I want to test the sync of decoding mp3 and aac audio sources. I will be using the WAVSource, AVISource, DirectShowSource, NicMPG123Source, bassAudioSource and FFAudioSource API calls when I can. What I found is that when decoding mp3 files, use NicAudio if possible, and DirectShow might work also.
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 ...
FPS - Avisynth wiki
http://avisynth.nl/index.php/FPS
AssumeFPS(clip clip, float fps [, bool sync_audio]) AssumeFPS(clip clip, int numerator [, int denominator, bool sync_audio]) AssumeFPS(clip clip1, clip clip2 [, bool sync_audio]) AssumeFPS(clip clip1, string preset [, bool sync_audio]) clip clip / clip1 = Source clip. float fps = If supplied, the new framerate is set to fps.
Using AviSynth 2.5 (page 13/15): Changing Framerate ...
https://www.afterdawn.com/guides/archive/using_avisynth_page_13.cfm
sync_audio Setting this to True will keep the audio in sync by resampling it. When you're done you'll usually need to resample the audio to return it to its original samplerate. You can do this with the SSRC filter. Example Code Speed up an AVI encoded from DVD from NTSC filme framerate (23.976fps) to PAL framerate: AviSource("NTSC_film_Source.avi")
AssumeFPS - AviSynth
http://www.avisynth.org.ru/docs/english/corefilters/fps.htm
If sync_audio is true, it also changes the audio sample rate by the same ratio, the pitch of the resulting audio gets shifted. This is also a method to change only the sample rate of the audio alone. In v2.55, if clip2 is present, the framerate of clip1 will be adjusted to match the one of clip2. This is useful when you want to add two clips ...
[Avisynth + Winavi] Audio out of sync? - VideoHelp Forum
https://forum.videohelp.com/threads/254485-%5bAvisynth-Winavi%5d-Audio-out-of-sync
Play the script, see if it plays in sync. Also you would want to move the resize filter to before the borders since I presume you want to resize to 320x150, then pad to 320x240 rather than pad your source by 90 and then resize to 320x150. LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\VSFilter.dll") AviSource("J:\Movies\Golden\cd1.avi")
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