SketchesAndPlots » History » Version 5

Chris Cannam, 2013-10-31 05:53 PM

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h1. Sketches and Plots
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"Infinitewave sweep":http://code.soundsoftware.ac.uk/projects/decimation/repository/entry/testsignals/infinitewave-sweep.wav plotted by the MATLAB toolbox. That is:
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<pre>
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x = wavread('infinitewave-sweep.wav');
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xcqt = cqt(x,50,48000,24,96000);
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contour(abs(xcqt.spCQT));
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</pre>
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!https://code.soundsoftware.ac.uk/attachments/download/843/Screenshot%20-%20311013%20-%2015_35_47.png!
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Same sweep, first Yeti version. Time alignment between octaves is not yet correct, and there is visible aliasing from decimation.
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!https://code.soundsoftware.ac.uk/attachments/download/844/Screenshot%20-%20311013%20-%2017_35_21.png!