I have recently asked this question too. I would like to write an effect specially tuned to create a good vocal sound. Clear but spacious effect. Dattorro's plate reverb is of Lexicon plate type. I would use that for vocals. Is Tim Goetze's Versatile Plate Reverb an implementation of Dattorro's? I have implemented it too if anyone would like to have the code. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software