Spek is an acoustic spectrum analyser written in C . It uses FFmpeg libraries for audio decoding and wxWidgets for the GUI.

Spek is available on *BSD, GNU/Linux, Windows and Mac OS X.

Find out more about Spek on its website: https://www.spek.cc/

New features since 0.8.2:

• Upgrade to FFmpeg 5.1
• Add 2 more palettes and change the default.
• Allow changing the DFT window size and function.
• Allow switching between audio streams and channels.
• Add translations for 14 additional languages.

Enhancements:

• Remove dependency on intltool.
• Fix FFmpeg build warnings.
• Detect AR tool.
• Use Homebrew for macOS dependencies.
• Improve test coverage.
• Use XDG_CONFIG_HOME on Unix systems.

Bugfixes:

• Remove association with .mod and MIDI files.
• Fix autoconf errors.
• Fix an AVX-related crash.

Spek 0.8.5 tarball:

• https://github.com/alexkay/spek/releases/download/v0.8.5/spek-0.8.5.tar.xz

Windows and Mac OS X binaries:

• https://github.com/alexkay/spek/releases/download/v0.8.2/spek-0.8.2.msi
• https://github.com/alexkay/spek/releases/download/v0.8.2/spek-0.8.2.zip
• https://github.com/alexkay/spek/releases/download/v0.8.2/spek-0.8.2.dmg

Unix packages:

• https://github.com/alexkay/spek/blob/master/INSTALL.md#bsd-and-gnulinux

• wxWidgets >= 3
• A recent version of FFmpeg