wavio

wavio is a Python module that defines two functions:

• readwav reads a WAV file and returns the sampling rate, sample width (in bytes), and a numpy array containing the data.
• writewav24 writes a numpy array to a 24 bit WAV file.

The module uses the wave module in Python's standard library, so it has the same limitations as that module. In particular, it does not support compressed WAV files.

The wavio module provides an alternative to the SciPy module scipy.io.wavfile. As of version 0.15.0 of scipy, the functions in scipy.io.wavfile do not support 24 bit sample widths. The function in this module, wavio.readwav, can read 24 bit files. When the sample depth is 24 bits, the data is returned in a 32 bit numpy array.

wavio has been tested with Python versions 2.7 and 3.4. It will likely work with older versions.

wavio depends on numpy (http://www.numpy.org). It has been tested with versions 1.8.1 and 1.9.0, and will likely work with older versions.

Author: Warren Weckesser
Repository: https://github.com/WarrenWeckesser/wavio
License: BSD 3-clause (http://opensource.org/licenses/BSD-3-Clause)