You mean 2d arrays containing the raw audio signal? No, this would not work because you do not know the phase along the y dimension when you want to compare to another signal.

Another method to detect an audio pattern is cross correlation on the raw audio signal. But it is very expensive in computation power and memory.

The longest operation with fingerprinting is often the DB query that is associated. Lots of work to do there. In that space, Will Drevo's work is really good. I will share my DB implementation later.