You can find an example c source code for FIR filters in TMS320C55x Chip Support Libraries (CSL) at:
and some description at:
c5000 DSPs are suitable for audio processing but I'm not sure in details what processing you will do. As I understand you will connect a microphone to record the sounds and then will make processing. Therefor I recommend you the following…
I think what you need to take a look at is the DSPLIB package from here http://www.ti.com/tool/sprc100
There are a lot of DSP routine examples such as FFT which would be of help. there are also .asm routines provided. Please also see the programmer…
The C55x DSP might be a good fit for you. There are multiple filtering and DSP functions that are part of C55x DSPLIB which you can peruse.
Here's a quick training module to give you a glimpse on the C55x software…
I would suggest taking a look at the DSPlib for C5000. This package has a plethora of information as it pertains to various DSP routines and the C55x core. You should be able to find alot of details on filter design in the documentation along…
Please check out the C5x DSPLIB http://www.ti.com/tool/sprc100 . It has the fft routines/examples that would help.
Here is an app note detailing the DSP lib benchmarks which would also help.