We need an experienced programmer who can download the entire library from the open source [url removed, login to view] or [url removed, login to view] for all the supported devices for the remote controls. The database of Hex Codes could be retrieved by index of devices and models. Then write a C++ program to convert it to .wav files as needed.
I completely understand your requirements in retrieving the data and in data conversion. I'm confident in finishing this task timely with quality. Please let me know your detailed requirements and start asap.