Hi, 
I am new to this technology. I want to do some media processing on static file. I want to mix the recorded human voice with some music. The voice should time stretch and pitch stretch, pitch shift as per the music frequency. Totally want to merge sound with music. So when listening to the final output, it produces voice playing as per the flow of music. 

Any idea how to achieve this? 
Is CHUCK is the right tool for achieving this? 
I need this functionality on urgent basis. We can pay for the solution.

Regards,

Sunny