Script hacked from https://github.com/ajfaraday/Text-to-music for listening to log files. A day of logs can be listened to in under a minute.

log_listener.rb

#
# Andrew James Faraday - May 2012
#
# This script is to allow direct manual control of the text-to-music algorithm.
# After a simple check of speed (1 divided by numbers 1 to 10 = number of seconds between characters) the user is prompted to provide textual input which is then sonified.
# This is recommended as a first experience of the text-to-music system, so new users can see the correlation between their use of text and the resulting sound.
# press ctrl+c to exit the script
#

#
# Update, 11 Jun 2012
#
# The script, with a surprisingly simple set of changes, can now be fed a file, which it reads. This opens the rather mind-blowing possibility of running this line:
#
# ruby scripts/manual-input.rb scripts/manual-input.rb
#
# The above command will use this file to read and sonify this file including this comment about reading and sonifying this file.
#

require_relative '../lib/pd-connect'

# If the first argument is a valid file, place a flag to skip prompts
begin
  file = File.new(ARGV[0])
  puts "Reading file: #{file.path}"
rescue
  # a convenience rescue to keep the process silent when a file is not present.
end

# Set up a port into pd
pd = PureData.new

if file and file.is_a? File
  # Automatically set the playback speed
  speed = 0.01
  show_prompt = false
else
  raise "No file"
end

# Repeatedly prompt the user to provide some text to sonify.
info = 0
warn = 0
line = ''
while true do
  line = gets
  break unless line

  case line
  when /INFO/
    if info == 0
      pd.send_string('a', speed)
    else
      sleep speed/100
    end
    info += 1
    info = 0 if info > 500
  when /WARN/
    if warn == 0
      pd.send_string('f', speed)
    else
      sleep speed/100
    end
    warn += 1
    warn = 0 if warn > 10
  when /ERROR/
    puts "\n#{line}"
    pd.send_string('!', speed*10)
  when /FATAL/
    puts "\n#{line}"
    pd.send_string('!', speed*10)
  end
end