I'm working on a sound installation that uses ChucK for synthesis, and am trying to figure out how to have a variety of interesting reverbs that evoke different kinds of environments. Convolution reverb using a variety of impulse responses would be ideal. This installation does not have any real-time input, so delay is not really a factor.

I came across this wonderful FFT convolution example that Perry Cook put together, and it's great, except that there is a click every hop-size as (I assume) the FFT calculation takes place.

I realize that maybe there wouldn't be such a click if I used a shorter impulse response, but I wonder if there's a way to spread out the calculation so that it isn't all happening on one sample. Is there any way to do the FFT asynchronously? Again, if it added more delay, it's not really a big deal.

Thanks!

Marc