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It presents a new way to compare two sounds. This has been reorganized to make my graduation thesis easier to understand.

This program calculates the density of the material by inputting the weight and size of each part for the main material of the violin.

Enter a width and height to create a catenary and display the heights of selected points on the catenary.

This program calculates the amount of each component based on the mixing ratio of each component when manufacturing violin varnish.

You can compare two sounds by finding an envelope of the frequency waveform of each of the two sounds and subtracting them from each other.