DirectX Audio Effect Filter

For a media player application i need a directshow audio effect filter that is capable to output the left or the right audio channel of a stereo audio stream in an avi/mpg to both speakers. Optionally a key control on the audio signal like in "Chronotron" is needed. These effects shall be controlled by the media player. To allow an easy integration into my media player a simple player based on the MS "PlayWnd" sample demonstrating the control of the filter shall be included in the deliverables. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Platform is WindowsXP SP2 with DirectX 9. Development Environment is Visual Studio. Programming language is C++.