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https://github.com/cookiengineer/audacity
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8ab9345268
Add script for spectrograms. Add Script for 'after' with effects examples. Add space and dc bias to afters script. Add docimages_all.py script to call all scripts. Shared part of scripts extracted into docimages_core.py
59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
# docimages_spectro.py
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# Sends commands to get images for the manual.
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# Images for https://alphamanual.audacityteam.org/man/Spectrogram_View
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# Make sure Audacity is running first and that mod-script-pipe is enabled
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# before running this script.
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#load and run the common core.
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exec( open("docimages_core.py" ).read() )
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# 11 2KHz tones, of decreasing amplitude.
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# With label track to annotate it.
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def makeStepper():
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makeWayForTracks()
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do( 'NewMonoTrack' )
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do( 'Select: Start=0 End=22')
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do( 'Silence' ) #Just so we can watch.
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do( 'FitInWindow')
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for i in range( 0, 11 ):
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do( 'Select: Start='+str(i*2)+' End='+str(i*2+2) )
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do( 'Chirp: StartFreq=2000 EndFreq=2000 StartAmp=' + str( (400**(0.1 * (10-i)))/400 )+' EndAmp=' + str( (400**(0.1 * (10-i) ))/400 ))
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do( 'Select: Start=0 End=22')
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do( 'Join' )
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do( 'FitInWindow')
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do( 'AddLabelTrack' )
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for i in range( 0, 11 ):
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do( 'Select: Start='+str(i*2)+' End='+str(i*2+2) )
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do( 'AddLabel' )
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do( 'SetLabel: Label=' + str(i)+' Selected=0 Text='+str( -(i*10) ))
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do( 'Select: Start=0 End=0')
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def spectro_image1and2() :
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loadStereoTracks(1)
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# A stereo track
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capture( 'Spectral001.png', 'First_Track' )
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# As spectrogram.
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do( 'SetTrack: Track=0 Display=Spectrogram')
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do( 'SetTrack: Track=1 Display=Spectrogram')
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do( 'Select: Start=55 End=70 First=0 Last=1')
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capture( 'Spectral002.png', 'First_Track' )
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def spectro_image3and4():
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makeStepper();
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# Stepper tone, viewed in dB.
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do( 'SetTrack: Scale=dB')
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capture( 'Spectral003.png', 'First_Two_Tracks' )
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# As spectrogram.
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do( 'SetTrack: Display=Spectrogram')
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capture( 'Spectral004.png', 'First_Two_Tracks' )
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#quickTest()
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spectro_image1and2()
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spectro_image3and4()
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