[Ryan] wanted a spectrum analyzer for his audio equipment. Rather than grab a micro, he did it the analog way. [Ryan] designed a 10 band audio spectrum analyzer. This means that he needs 10 band ...

Now you can get a $49 spectrum analyzer to go with it ... or you might be able to do a software solution. If you only need audio frequencies and you want novelty, try some ping pong balls ...

While developing the custom app, he had to re-implement deprecated functionality to run the audio visualization ... It ...