Pyo is a Python module written in C to help digital signal processing script creation. * Python 2.7 must be installed on your system before running this installer. * http://www.python.org/download/ When you install Python, You need to add Python27 folder path to the system variable PATH. By doing this, the system will accept "python" as an internal command. Add C:\Python27 to the list of paths in: system -> Advanced -> Environment Variables -> PATH To use the WxPython toolkit for widgets, you need to install wxPython2.8-win32-unicode-py27: http://www.wxpython.org/download.php#stable This installer will leave a folder called pyo_examples on the Desktop, it's a good starting point to explore the library! In a Command Prompt: cd Desktop\pyo_examples python xnoise_example.py Please, send comments and bugs to: belangeo@gmail.com