Initial version of this file comes from Scipy project.

It lacked markers and loops features, so it has been modded by Joseph Ernest as wavefile.py (extended), as explained in this article

It had a few bugs to fix though, and some critical functions were still missing, like the preservation of unsupported chunks.

That's why I had to mod it to bring new features. Here is the list:

• unsupported chunk read and write
• LIST-INFO support
• renamed variables to avoid conflict with python native functions
• correct bytes error
• correct write function

And here are the previously added optimizations by Joseph Ernest:

• read: also returns bitrate, cue markers + cue marker labels (sorted), loops, pitch
• read: 24 bit & 32 bit IEEE files support (inspired from wavio_weckesser.py from Warren Weckesser)
• read: added normalized (default False) that returns everything as float in [-1, 1]
• read: added forcestereo that returns a 2-dimensional array even if input is mono

I'm no python expert, and I may not have tested every scenario. Be very careful while using this script. Make copies of your files to be sure.

Though it objectively has fewer bugs than previous versions, it may still contain some in certain circumstances.

Please test it and report if something is wrong!