Make volume a function of frequency about glance-data-analyzer HOT 3 CLOSED

We'll talk about this friday in more detail, before we implement or do anything, and then decide is it's a feature worth approaching.

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I've done some more research into this subject and I think it is actually far more complicated than we initially thought. On this wiki page for Equal-Loudness Contour you can find this graph
This graph is the tip of the iceberg for determining the proper sound pressure level (decibel) for a frequency for it to have the same perceived volume as another frequency. I also found many references to ISO-226 which appears to be a method that is an international standard for calculating these things. The problem is that the ISO seems to own the rights to these methods and they must be purchased to be used. I am going to attempt to implement the fix Ethan suggested but I doubt that it will properly adjust volume based on frequency.

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There doesn't appear to be any easy solution to this. I decided to lower the volume slightly so that higher notes aren't quite as painful. I also increased the lower bounds of the frequency range so that there would be less high frequency notes.

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