Spek - Acoustic Spectrum Analyser

       Alexander  Kojevnikov  <alexander@kojevnikov.com>.   Other contributors are listed in the LICENCE.md file
       distributed with the source code.

Spek generates a spectrogram for the input audio file.

       The latest version of Spek may be downloaded from <http://spek.cc>.

User’s Guide                                       2023-01-09                                            SPEK(1)

~/.config/spek/preferences
              The configuration file for Spek, stored in a simple INI format.

Notes
       On OS X use the Command key instead of Ctrl.

   MenuCtrl-O Open a new file.

       Ctrl-S Save the spectrogram as an image file.

       Ctrl-E Show the preferences dialog.

       F1     Open online manual in the browser.

       Shift-F1
              Show the about dialog.

   Spectrogramc, C   Change the audio channel.

       f, F   Change the DFT window function.

       l, L   Change the lower limit of the dynamic range in dBFS.

       p, P   Change the palette.

       s, S   Change the audio stream.

       u, U   Change the upper limit of the dynamic range in dBFS.

       w, W   Change the DFT window size.

       Spek - Acoustic Spectrum Analyser

-h, --help
              Output the help message then quit.

       -V, --version
              Output version information then quit.

       spek [OPTION...] [FILE]