Integrate Echo Cancellation into RAT

Google Summer of Code 2008 ideas

Mentors: Piers O'Hanlon (UCL) (p.ohanlon at gmail.com)

Background

The cross-platform (Linux, OSX, Windows) tools Robust Audio Tool (RAT), Video Tool (VIC), and UCL Common multimedia library are widely deployed in various Operating systems (e.g. Ubuntu Linux and FreeBSD). They also underpin the globally deployed AccessGrid advanced collaborative environment.

Currently the OMII-UK AVATS project provides for enhanced stability and baseline support (though new features as suggested below would not be covered): http://www.cs.ucl.ac.uk/research/avats/.

The media tool's development Trac and Subversion site: http://mediatools.cs.ucl.ac.uk/.

Project Goals

Whilst RAT currently provides for echo suppression it would benefit from advanced echo cancellation functionality - for headphone-free usage. There now exist some open source echo cancellation libraries (Speex.org and others) which would be usefully integrated

Project Requirements

In order to be able to successfully be able to complete this project the student should be able to program in C/Tcl/Tk.