Failed building wheel for pyaudio on MacOs

[jabassou]

When installing dependencies via pip on macos I got this error:
Failed building wheel for pyaudio

To correct the error you need to:

• Make sure you have the appropriate development tools installed on your system. In the case of macOS, you can install them by running the following command :
  xcode-select --install

• Install the PortAudio library using Homebrew (if you haven't already done so):
  brew install portaudio

• Once PortAudio is installed, try installing the dependencies again using pip:
  pip install -r requirements.txt

[alishenda]

Thx for the tests on mac ! #7