Real-time analysis

Playing around with on-board audio capture, analysis, and visualization in python.

Requirements

Mac osx
Homebrew
Python >=3.6
iShowU Audio Capture (see below)

Setup

On mac with homebrew installed:

brew install portaudio
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Next install iShowU Audio Capture and setup a virtual audio route:

Follow the install instructions from the latest release
- Be sure to allow the developer in your security preferences in the last step, this is a second allow after entering your password in the .pkg install
Open the native mac app Audio MIDI Setup
Click the + in the bottom left corner
Setup your new audio route by clicking the checkboxes next to iShowU and Built-in Output
- If you don't see iShowU then something went wrong in the install process
- Make sure to select drift correction for both sources
- Make sure both sources are at the same sample rate by switching the master device, this script assumes 96.0 kHz
- Your final master device should be built-in output
- Optionally rename the new virtual audio route to something recognizable like loopback
After your iShowU loopback is created set the INPUT_DEVICE_INDEX in config.py
- Run python helpers.py to list your device indexes

To Run

cd rta/src

python run.py

Play some music ^.^

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