A Sound equalizer is a basic tool in the music industry. It also serves in several biomedical applications like hearing aid industry.
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The two signal viewers display the signal “before” and “after” the equalization actions.
Note the two viewers are exactly linked. i.e. they always show the same exact part of the signal when the user scroll or zoom on any one of them. -
The equalizer panel contain 10 sliders, each control the gain of 1/10 of the bandwidth of the frequency domain. The default value of each slider is 1 (i.e. the corresponding BW of the signal remain as is) and can go up to 5 and drop down to 0.
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Upon changing any equalizing slider, two things change:
- The signal itself change in the “After” viewer.
- The spectrogram is also updated to reflect the change.
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Software can open a music file, play it, then be able to save the output in a new sound file that can played in other players.
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The user can compare the results (through graphs saved in pdf format or by listening to the after signal)
Run test.py to run the GUI