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Old 20th February 2015, 21:29   #1  |  Link
martin53
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Join Date: Mar 2007
Posts: 405
AudioTimeline plugin, thumbsheet script

EDIT 2017/03/10 - new version 0.5.4, small bugfix

The linked plugin displays a audio timeline track under the frame. It is especially suited for thumbsheets, where it allows to estimate the audio track of the thumbnailed clip.

The plugin differs from AudioGraph, ViewAudio and waveform plugins as it does not display the waveform (and that in an arbitrarily over- or subsampled manner), but the RMS and peak audio levels, like the HistoGram() function does.
Short feature summary
Code:
clip AudioTimeline(clip, int "frames" = 1, bool "mixdown" = true, int "height" = 0, int "dBHeadroom" = 6, int "dBRange" = 66, int "loFreq" = 20)
- arbitrary audio window, no limit to the 'frames' parameter
- start of the audio time is the current frame (as known from timeline display), window is not symmetrical towards past and future of the frame, but displays the frame and future frames audio
- all AviSynth 2.6 pixel formats except YUY2
- 1 display track with mixdown level of all audio tracks or separate display tracks
- real level meter representation, level meter height and scale adjustable
- adjustable lower frequency limit to avoid display aliasing for low audio frequencies due to too short sample window


For completeness, find a thumbsheet function attached. It might deserve an own thread, but the both belong together more or less.

The script is undocumented - besides the AudioTimeline plugin, it needs the Cnv2() wrapper posted lately and CallCmd.
The plugin of course is documented and comes with source and a test suite.
Attached Images
 
Attached Files
File Type: zip Thumbsheet.avsi.zip (1.3 KB, 78 views)

Last edited by martin53; 10th March 2017 at 21:04. Reason: More detailed description of plugin features
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