usage: sndpeek  --[options] [filename]
  ON/OFF options: fullscreen|waveform|lissajous|waterfall|
                  dB|features|fallcolors|backward|showtime|
                  freeze
  number options: timescale|freqscale|lissscale|logfactor|
                  spacing|zpos|dzpos|depth|preview|yview|
                  rotatem|rotatek|begintime|ds
   other options: nodisplay|print

example:
    sndpeek --fullscreen:ON --features:OFF --spacing:.05

  *** if no file is provided, the mic input is used. ***

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sndpeek + wutrfall (1.3)
Ge Wang, Perry R. Cook, Ananya Misra
http://soundlab.cs.princeton.edu/
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'h' - print this help message
'p' - print current settings to console
's' - toggle fullscreen
'f' - freeze frame! (can still rotate/scale)
'1' - toggle waveform display
'2' - toggle lissajous display
'3' - (also 'w') toggle wutrfall display
'4' - toggle feature extraction (broken)
'd' - toggle dB plot for spectrum
'r' - toggle rainbow waterfall
'b' - toggle waterfall moving backwards/forwards
'x' - restart file playback (if applicable)
'p' - print current settings to terminal
'm' - mute
'j' - move spectrum + z
'k' - move spectrum - z
'u' - spacing more!
'i' - spacing less!
L, R mouse button - rotate left or right
'[', ']' - rotate up or down
'-' - scale DOWN the spectrum
'=' - scale UP the spectrum
(shift)'-' - scale DOWN the waveform
(shift)'=' - scale UP the waveform
'c' = LOWER log factor of spectrum display
'v' = RAISE log factor of spectrum display
      (log factor of 1.0 is linear display
(shift)'c' - LOWER amount of viewable waveform
(shift)'v' - RAISE amount of viewable waveform
'l' - scale DOWN the lissajous!
'L' - scale UP the lissajous!
'y' - decrease delay for lissajous plot
'Y' - increase delay for lissajous plot
'q' - quit
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