Decode digital data in audio stream DSP/QPSK

A proposal has not yet been provided

I have system programming experience on Windows API. So i thing if you clear me your requirements then i can try my best. But you have pay some time for it. I have experience on Windows Application since 15 years.

Please, send the audio file for my review. Together the expected decoded data within this audio file so I know my code worked well for this project.

ok, very good please see my portfolio then you can know about my skill this project is in my skill i can provide you high quality under acceptable price price will depend on detail please check pm

Have you heard of a piece of software called SpanDSP? Probably not. SpanDSP is a sofware modem, that can act as one end of a phone modem connection, or a fax machine. It contains routines to encode and decode various modulations standards, while dealing with noise. I can make use of the code to produce a program that decodes your audio. I will write cross-platform source that can be compiled to either windows or linux, or (probably) MacOS. Please note, for a decoder to work the source files (signal) must be of sufficient quality so the data can be filtered out from the noise. Also the symbol rate of the signal may need to be specified.