Audio Alchemy (Bonus)

Convolution is a powerful technique that multiplies the spectra of two files—one called the source (or “carrier”) and the other called the impulse response (IR)—to produce a vast range of effects.
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This online bonus material supplements the feature story “Master Class: Audio Alchemy” in the April 2008 issue of Electronic Musician.

Get in the Game

Good convolution software has been around for a long time; I''ve been a user of Sony''s Acoustic Mirror since before the company was Sony and before the feature was even included with Sound Forge. But the recent explosion of convolution-reverb software has made the technique even more accessible. This list includes representative tools that run either as plug-ins with a suitable host or as a built-in feature within a dedicated audio program. You should have no trouble producing results like those described in this article using nearly any of them.


Audio Ease Altiverb (Mac/Win)www.audioease.comChristian Knufinke SIR2 (Win)www.knufinke.deTascam GigaPulse (Win) www.tascam.comTeragon Audio Convolver (Win)www.dontcrack.comTrillium Labs TL Space (Mac/Win)www.digidesign.comVoxengo Pristine Space (Win)www.voxengo.comWaves IR-1 (Mac/Win)


Adobe Audition (Win) Apple Logic (Mac) Peak (Mac)www.bias-inc.comCakewalk Sonar (Win)www.cakewalk.comCsound (Mac/Win) SpectrumWorx (Win) Structure (Mac/Win)www.digidesign.comE-mu Emulator (Win)www.emu.comGleetchLab (Mac)www.gleetchplug.comImageLine FL Studio (Win)www.flstudio.comMagix Samplitude (Win)www.samplitude.comNative Instruments Battery 3 (Mac/Win) Instruments Kontakt 3 (Mac/Win) Sound Forge (Win) Nuendo (Mac/Win) GigaStudio (Win) Erbe SoundHack (Mac)www.soundhack.comU & I MetaSynth (Mac)