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omap l138 experimenter and complex signal processing

Other Parts Discussed in Thread: OMAPL138, OMAP-L138

Like I written in topic, I have omapl138 exp. So far I just make some simple stuff like audio processing(using FIR filter). But now i wnat to do some more complex stuff. What I need to do is removing impulse noises from aduio signal(misic) using parametric method detection of impulse noise .In this method first I need to compute parameters of AR model of my audio signal. Next I use these parameters for pre-whitenig filter . When signal pass through my pre-whitenig filter , I use its residual error to compute noise detection levels base on its distribution function, wich I approximate using histogram. So summary, I need:
- compute parameters of AR model(burg algorithm);
- filter signal with pre-whitenig filter;
- compute distribution function;
- designate detection levels

I'm quite new in dsp, so I have no experience. I just want to know if OMAP L138 can handle all of these steps in real time? So far I implemented burg's algorithm and I it looks like it can't work in real time. Maybe I'm doing something wrong but already I have done some optimalization - relise project mode and o3 optimization level, and it's works fine for simple FIR filter. Something tells me, that it's bit harder than I supposed.

  • Jaroslaw,

     

      If you are new to DSP, you might be interested in the Software Design Guide for the OMAP-L138 Devices. It gives some introductory level information which may guide you in understanding how the C674x DSP can be used in combination with a real time operating system to achieve real time signal processing algorithms on the DSP.