aubio
Analyzing songs online
When built with ffmpeg or libav, aubio can read most existing audio and video formats, including compressed and remote video streams. This feature lets you analyze directly audio streams from the web.
A powerful tool to do this is
youtube-dl, a python program which
downloads video and audio streams to your hard-drive. youtube-dl works not
only from youtube, but also from a large number of
sites.
Here is a quick tutorial to use aubio along with youtube-dl.
First, you will need to have aubio installed, making sure it has
been compiled with libavformat and friends. Then, install youtube-dl with
pip:
$ pip install youtube-dl
To get the url of the audio stream associated to a web page, youtube-dl
provides two command line options: -g to show url, -x to get only audio.
You can get the full list of options with youtube-dl --help;
Examples:
Extract onsets from a youtube video:
$ aubio onset `youtube-dl -gx https://youtu.be/AW2v5Yqt84I`
Play the beats along a soundcloud recording:
$ ./python/demos/demo_tapthebeat.py `youtube-dl -xg https://soundcloud.com/youngpulse/a1-work-2-do`
Note: if youtube-dl had been previously installed, best is to update it
to the latest version, which can be done with youtube-dl -U or pip install
--upgrade youtube-dl.
Wed, 04 Oct 2017, 12:34. trackback - view/add comments
Responses to this post
Leave your own comment
© 2003-2017 the aubio team | cc-by-sa