Using SGI to record sound and analyze with Matlab

Soundeditor to record sound
  new file, choose 1 channel
  use control panel to set microphone level to halfway
  speak loudly

Soundfiler to convert to wave format
  specify file
  choose convert
  output file: file.wav
    Fileformat MS RIFF WAVE
    Rate 44.1K
    Channels Mono
    Format Integer
    Bits 8
    Sign Unsigned
  

Matlab to read and play the file
  [a]=wavread('file.wav');      % read data file
  sound(a,44100)                % play data at correct sample rate