Working on a university project which is a version of a instrument tuner designed to work on a Timpani (drum). We have developed a prototype that uses matlab to do the computation, currently looking at developing a system based on this code for the c5505 ezdsp.
At this stage we are having some trouble in getting the basics done as every demo we have found so far is not well documented and doesnt explain what it is doing, especially during the set up phase.
Also many of the systems seem to do input then some form of filtering then output through the IS2 devices. What we would like to do is take input (at 8k or lower) filter it to the required spectrum (about 500 Hz) run an FFT (possibly zero padded to increase resolution), some tonal scale conversion then output from a different device.
We believe that we understand the latter computation, at this stage what we require is some code (or explanation of how to write the code) to sample the audio stream at 8kHz (maintain an unencoded signal) and save it to an array
Thanks in advance
Luke
