Onset Beat Detection to OSC

This is a simple beat detector built with aubio. It will detect the beat and BPM on the default audio input. On every beat, the current BPM is sent to one or more OSC servers.

Command line only.

This is a feature of WLEDAudioSync Chataigne Module.

You can see a demo here : WLEDAudioSyncRTBeat demo

Chataigne view:

Installation

Win / Mac / Linux

Take your release from there : https://github.com/zak-45/WLEDAudioSyncRTBeat/releases

No python need.
This is a portable version, put it on a nice folder and just run it according your OS.

INFO

Some anti virus could warn you, this is false positive. If you do not trust you can still proceed with step below.

Other OS / all OS with Python installed

Install required modules

pip install -r requirements.txt

download WLEDAudioSyncRTBeat.py file and run it:

python WLEDAudioSyncRTBeat.py

Usage

WLEDAudioSyncRTBeat-{OS} beat|list [-h] -s IP PORT ADDRESS MODE [-b BUFSIZE] [-v] [-d DEVICE]

optional arguments:
  -h, --help            show this help message and exit
  -s IP PORT ADDRESS MODE, --server IP PORT ADDRESS
                        OSC Server address (multiple can be provided)
                        MODE can be PLAIN (bpm), HALF (bpm / 2), GMA3 sqrt(bpm / 240) * 100, default to PLAIN
  -b BUFSIZE, --bufsize BUFSIZE
                        Size of audio buffer for beat detection (default: 512)
  -v, --verbose         Print BPM on beat / dB
  -d DEVICE, --device DEVICE
                        Input device index (use list command to see available devices)

-s/--server

Add an IP, PORT and OSC ADDRESS to which the BPM beat signal will be sent to. Example: -s 127.0.0.1 21000 /foo/beat

-b/--bufsize

Select the size of the buffer used for beat detection. A larger buffer is more accurate, but also more sluggish. Refer to the aubio documentation of the tempo module for more details. Example: -b 128

-v/--verbose

Output a handy beat indicator and the current BPM / dB to stdout.

-d/--device

Specify the index of input device to be used. If not provided, the default system input is used.
Run WLEDAudioSyncRTBeat list to get all available devices.

Example

$ WLEDAudioSyncRTBeat-Linux beat -s 127.0.0.1 12000 /WLEDAudioSync/BPM -s 10.10.13.37 12345 /test/baz GMA3 -v

This will send beat messages to the OSC address /WLEDAudioSync/BPM on 127.0.0.1:12000 and /test/baz on 10.10.13.37:12345. Additionally, the current BPM will be printed to stdout, and for 10.10.13.37 will send GMA3 bpm value

Info

First time you run WLEDAudioSyncRTBeat-{OS},
this will create folder ./WLEDAudioSyncRTBeat and extract all files on it.

To save some space and time,
you can then delete WLEDAudioSyncRTBeat-* and run the app from created folder.

Credits

Thanks to : https://github.com/DrLuke/aubio-beat-osc.