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2. Trans­form­ing sounds with iZo­tope Iris 2

Computer Music - - Make Music Now / Spectral Synthesis -

1 iZo­tope’s Iris 2 is a pow­er­ful spec­tral syn­the­siser that can be used to trans­form even the most mun­dane sound. We’ve launched Iris in our DAW. Click New in the browser to ini­tialise the patch, then click 1 in the top-right to select the first sam­ple slot for edit­ing.

2 Drag Dig­i­talVox C3.wav (a syn­thetic choral sam­ple) into the area shown on the left. The spec­tro­gram ap­pears in the large dis­play area. Au­di­tion the sound. Note that play­ing dif­fer­ent pitches af­fects play­back length. Pitch Mode is set to Re­sam­ple – change that to Ra­dius RT.

3 Us­ing the var­i­ous tools found to the left of the spec­tral dis­play, we can edit the spec­tro­gram. Choose the Fre­quency Se­lec­tion tool to select a few ver­ti­cal bars in the dis­play. Now au­di­tion the sound to hear the re­sults. The change is ob­vi­ous – our choir has trans­formed into an icy pad.

4 Use the eraser tool to poke holes in the se­lec­tions. Be­tween the tool­bar and dis­play, you’ll find a ver­ti­cal slider for ad­just­ing Brush Size. Re­fine the sound by ad­just­ing loop points and Cross­fade Length be­low the dis­play. Add a bit of echo for a more at­mo­spheric patch.

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