Soothing noise generator

noise

#!/bin/sh

# Jason Huggins (@hugs)
#
# Install:
#   * Download http://sourceforge.net/projects/sox/files/sox/14.3.2/
#   * Unzip and the place "play" binary somewhere in your $PATH

# Explanation of settings:
# - Stereo (2 channels): -c 2
# - 32k rate (high quality): -r 32k
# - Play for 8 hours (can also be set at the command line): 08:00:00
# - Brown noise (Brown's the *best*! Suck it, white!): -n synth brownnoise
# - Slight oscillation in volume: tremelo .1 40

# Example Usage:
# $ noise
# (plays noise for 8 hours)
#
# $ noise 00:01:00
# (plays noise for 1 minute)

# $ noise 10
# (plays noise for 10 seconds)

len='8:00:00'

if [ "$1" != '' ]; then
  len=$1
fi

play -c 2 -r 32k -n synth $len brownnoise tremolo .1 40

would you know why the sound gets overblown when "-r 44100"? That such a standard settings... anyways, had to omit that argument in my code https://gist.github.com/1209835 which at least reduces CPU usage by 95% :-)

@rsvp, sorry, I don't know anything about that issue. In true empirical style, I know what works, and not much else. ;-)