Reading and Writing WAV Files in Python

Sample code and sounds for the Reading and Writing WAV Files in Python tutorial on Real Python.

Setup

Create and activate a new virtual environment:

$ python3 -m venv venv/ --prompt wave
$ source venv/bin/activate

Install the required dependencies:

(wave) $ python -m pip install -r requirements.txt -c constraints.txt

Usage

Synthesize Sounds

(wave) $ python synth_mono.py
(wave) $ python synth_stereo.py
(wave) $ python synth_beat.py

Synthesize 16-bit Stereo Sounds

(wave) $ python synth_stereo_16bits_array.py
(wave) $ python synth_stereo_16bits_bytearray.py
(wave) $ python synth_stereo_16bits_ndarray.py

Plot a Static Waveform

(wave) $ python plot_waveform.py sounds/Bicycle-bell.wav
(wave) $ python plot_waveform.py sounds/Bongo_sound.wav -s 3.5 -e 3.65

Animate an Oscilloscope

(wave) $ python plot_oscilloscope.py sounds/Bicycle-bell.wav
(wave) $ python plot_oscilloscope.py sounds/Bongo_sound.wav -s 0.005

Animate a Spectrogram

(wave) $ python plot_spectrogram.py sounds/Bicycle-bell.wav
(wave) $ python plot_spectrogram.py sounds/Bongo_sound.wav -s 0.0005 -o 95

Record a Radio Stream

(wave) $ RADIO_URL=http://prem2.di.fm:80/classiceurodance?your-secret-token
(wave) $ python record_stream.py "$RADIO_URL" -o ripped.wav

Boost the Stereo Field

(wave) $ python stereo_booster.py -i sounds/Bicycle-bell.wav -o boosted.wav -s 5