Hi, Curiosity, by sinc do you mean sin function?
Before anything: I’m a newbie. If I say something stupid don’t throw fire at me, please! :) During this last year I have been developing a synthesizer. My lookup table hadn’t more than 2048 samples. The sounds coming out from the oscillators was alright. When I got to develop a chorus, I was using the very same table for the lfo oscillators. The modulation was causing artifacts. It took me a while to understand that the problem was being caused by the lack of resolution of my tables. I ended up with a table 441000 length, for a 44100 sample rate. The artifacts were gone! My conclusion was that the raw steps were causing audible artifacts and increasing the resolution was the solution. I haven’t tried to find the lowest point of resolution that doesn’t cause artifacts. I was so tired of trying to solve the artifacts that I have only remember this problem when I saw this question from Victor. For the oscillators table I have simply doubled the initial value and now i’m using 4096. What do you guys think of this? Thanks, Regards, Nuno > On 10/09/2015, at 20:15, Victor Lazzarini <victor.lazzar...@nuim.ie> wrote: > > Is there much to gain in going above a 1024 window, when doing sinc > interpolation (for table lookup applications)? > > (simple question; no intention of starting flame wars; not asking about any > other method, either ;) ) > > Victor Lazzarini > Dean of Arts, Celtic Studies, and Philosophy > Maynooth University > Ireland > _______________________________________________ > dupswapdrop: music-dsp mailing list > music-dsp@music.columbia.edu > https://lists.columbia.edu/mailman/listinfo/music-dsp _______________________________________________ dupswapdrop: music-dsp mailing list music-dsp@music.columbia.edu https://lists.columbia.edu/mailman/listinfo/music-dsp
