A python algorithm to change the pitch of the voice in real time. It is also possible to control the pitch shifting rate in real time in the command line interface.

• pyaudio
• readchar

git clone https://github.com/pprablanc/ppsrt.git
cd ppsrt
pip install -e .

In the terminal:

cd ppsrt
./ppsrt.py

In the terminal interface, you can increase/decrease the pitch shift of the voice with '+'/'-' keys respectively. To leave the program, hit space twice.

If you use this program within Spyder IDE, you might have problems with readchar. It is recommended to use it in a standard terminal.