i used Ableton live and made 6 copies of the same track then i added 2 tracks with mac startup and error sounds these were found online thru google search i added a compressor to al the tracks and started by pitching -/+ each track until i got a general wall of noise using the draw mode as the track looped i adjusted the volume and panning of each track

this final composition was exported and touched up in audacity

the only fx used were track reverb ,delay and general compressor