How to generate waveform or image of entire sound file?

I am fairly comfortable with real-time audio visualizers. However, I am wondering how to go about coding something that would pre-read the whole audio file and generate a visualization based off that. Static instead of real time essentially. Any pointers?

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This should answer your question:



Thanks for that. Much appreciated!

This is another good sample for drawing a the waveform of an audio file: