Phaser - Pure Data Part 3

Building on what we looked at in the last two weeks, this week's patch is a bit more complex. Whilst they sound somewhat similar, phasers are built quite differently to flangers, as can be seen in the patch below.

Used on songs such as Van Halen's Eruption, phaser effects can be used to give motion and movement to instrument tones, and can be found on keyboards and hammond organs as well as electric guitar, creating an effect reminiscent of a Leslie rotating sound.

In this patch the swooping sound of the phaser is created from two cosine waves 1/2π out of phase. When combined with the dry guitar sound you get that familiar swoosh. On the patch below I've suggested some parameters to work between, but try some variations yourself, experiment and see what you can come up with.

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