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# sketchbook: tunestorm 04
- URL: https://wootangent.net/sketchbook-tunestorm-04/
- Published: 2011-01-31T06:05:35.000Z
- Updated: 2026-10-24T08:22:46.000Z
- Author: Leigh Dyer
- Tags: Music, Releases, Sketchbook, nanokontrol, phasex, sampler, specimen, tunestorm, #Migrated-1792830072870, #wp, #wp-post, #Import 2026-10-24 08:21

Download [pulse.flac](https://wootangent.net/content/files/2026/10/pulse-7.flac)

There was another [Tunestorm](http://opensourcemusician.com/index.php/Tunestorm?ref=wootangent.net) challenge earlier this month, and in the finest tradition of such things, I threw together an entry at the last minute. The challenge this time was to make a piece using a sample taken from a spinning hard drive, which sounded just like a sine wave that slowly dropped in pitch.

You could use other sounds, too, but I chose not to -- I loaded a chunk of the original sound in to a sampler (Specimen), ran it through some distortion effects, then through PHASEX, where I tweaked away on the filter in real-time using my Korg nanoKONTROL, and finally through some spatial effects. The result was some throbbing, unsettling ambient art-wankery that I call "pulse".

[mp3](https://storage.ghost.io/c/42/8f/428f222b-5293-47dc-a763-0d524d3db42e/content/media/2026/10/pulse-2.mp3?ref=wootangent.net) | [vorbis](https://storage.ghost.io/c/42/8f/428f222b-5293-47dc-a763-0d524d3db42e/content/media/2026/10/pulse-5.ogg?ref=wootangent.net) | [flac](https://wootangent.net/content/files/2026/10/pulse-8.flac) | 2:50