AssumeSampleRate
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| − | {{Template:FuncDef|AssumeSampleRate(clip ''clip'', | + | {{Template:FuncDef|AssumeSampleRate(clip ''clip'', int ''samplerate'')}} |
| − | + | Changes the sample rate of the current clip without changing the number of samples. | |
| + | :This changes the pitch, playback speed and running time of the audio. | ||
| + | :It will also affect synchronization with the video. | ||
| − | + | ==== Examples ==== | |
| − | + | <div {{BoxWidthIndent|38|1}} > | |
| − | # Let's say that this video is 25fps, 44100hz | + | # Let's say that this video is 25fps, audio 44100hz. |
| − | AviSource("video_audio.avi") | + | [[AviSource]]("video_audio.avi") |
| + | |||
| + | # Play video at half speed: | ||
| + | [[AssumeFPS]]([[Clip_properties|FrameRate]]/2) | ||
# Play audio at half speed: | # Play audio at half speed: | ||
| − | AssumeSampleRate( | + | AssumeSampleRate([[Clip_properties|AudioRate]]/2) |
| − | + | ||
| − | + | ||
| − | + | ||
| − | # Video and audio | + | # Video and audio are now in sync. |
| + | </div> | ||
| + | ==== See Also ==== | ||
| + | * [[AssumeFPS]]: {{FuncArg|''sync_audio''}} | ||
| + | :If ''true'', the audio sample rate is changed by the same amount; the pitch of the resulting audio is shifted. | ||
| + | :If ''false'' (the default), the audio is unchanged; this means the audio will lose synchronization over time. | ||
[[Category:Internal filters]] | [[Category:Internal filters]] | ||
[[Category:Audio_filters]] | [[Category:Audio_filters]] | ||
| + | [[Category:Timeline_editing_filters]] | ||
Revision as of 12:31, 14 January 2016
AssumeSampleRate(clip clip, int samplerate)
Changes the sample rate of the current clip without changing the number of samples.
- This changes the pitch, playback speed and running time of the audio.
- It will also affect synchronization with the video.
Examples
# Let's say that this video is 25fps, audio 44100hz. AviSource("video_audio.avi") # Play video at half speed: AssumeFPS(FrameRate/2) # Play audio at half speed: AssumeSampleRate(AudioRate/2) # Video and audio are now in sync.
See Also
- AssumeFPS: sync_audio
- If true, the audio sample rate is changed by the same amount; the pitch of the resulting audio is shifted.
- If false (the default), the audio is unchanged; this means the audio will lose synchronization over time.
