Re: Stream FFT and iFFT
Posted: Thu Jun 27, 2013 8:50 pm
TheAudiophileDutchman, pointed out, that the error rate could be so low because of the accuracy of internal sine table. And he was right with that. I've changed the "From mag/phase" module to interpolate the sine table now, and the error rate is much better (max. error = -125dB).
I've done several other changes, too. Can't remember all of them. For testing purpose I've added a really basic Frequency domain filter.
Due to the sine table accuracy, maybe I've to change the sine table inside the FFT code again. The one from trog could probably deliver better results.
I've done several other changes, too. Can't remember all of them. For testing purpose I've added a really basic Frequency domain filter.
Due to the sine table accuracy, maybe I've to change the sine table inside the FFT code again. The one from trog could probably deliver better results.