carta
spek(1)

spek1

Acoustic spectrum analyser

Usage

spek [OPTION ...] [FILE]

Overview

Spek generates a spectrogram for the input audio file.

Options

-h, --help

Output the help message then quit.

-V, --version

Output version information then quit.

Keybindings

Notes

On OS X use the Command key instead of Ctrl.

Menu

Ctrl-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.

Spectrogram

c, 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.

Files

~/.config/spek/preferences

The configuration file for Spek, stored in a simple INI format.

Distribution

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

History

  • Arch Linux 2026-11-01 to Debian 12 (Bookworm): the text shown here
  • Debian 10 (Buster) to Debian 8 (Jessie)
  • Debian 7 (Wheezy)

Authors

Alexander Kojevnikov <[email protected]>. Other contributors are listed in the LICENCE.md file distributed with the source code.

From spek 0.8.5-4 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.