[mus422] MUSHRA test for final project

[Colin Raffel]

Hi 422, Jieun, Isaac and I have created a series of MUSHRA tests to  
evaluate our final project codec.  Since you all are arguably the best  
qualified to do listening tests, we'd really appreciate it if you took  
them!  Shouldn't take too long, and as a bonus it will help you  
determine at what bitrate you can hear the difference between a CD- 
quality and mp3 file in a double-blind manner.  Here it is:

https://ccrma.stanford.edu/~craffel/etc/mp3challenge/

Thanks!

-Colin