Pitch contour takes too long to generate

[darcywong00]

I'm capturing issues as emailed to me by @terrygibbs

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Users of Speech Analyzer primarily make use of the Waveform graph and Pitch graph. The Waveform Graph is used for both playing back the Audio Recording and provides a way for users to enter time-aligned phonetics data along with an English Gloss of the data. The Pitch Graph is used to show the Pitch Contour and view the rise and fall of the audio sound which can then be used to identify the pitch sounds that are part of the audio recording.

There are two mathematical routines in Speech Analyzer that analyze the Audio Recording. One is
used for showing the Waveform Graph and the other is used for showing the Pitch Contour Graph.
The calculations needed for analyzing the Waveform and producing the graph are fairly straight
forward. However producing an analysis of the Pitch is more complex and takes time to generate.

The issue in Speech Analyzer is that the algorithm that is used to generate the Pitch contour is taking too long to generate. Part of this is due to the complexity of the math routine, but a part of this is caused by using too much mathematical precision in the calculation.

The solution to making the pitch graph show up quickly it to use a lot less mathematical data.