AssumeSampleRate: Difference between revisions
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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 13:31, 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.
