Spek

Spek (IPA: /spE?k/, 'bacon' in Dutch) helps to analyse your audio files by showing their spectrogram.

• Supports all popular lossy and lossless audio file formats thanks to the FFmpeg libraries.
• Ultra-fast signal processing, uses multiple threads to further speed up the analysis.
• High number of frequency bands for the best spectrogram quality.
• Shows the codec name and the audio signal parameters.
• Allows to save the spectrogram as an image file.
• Drag-and-drop support; associates with common audio file formats.
• Auto-fitting time, frequency and spectral density rulers.
• Available in Dutch, English, French, German, Polish, Russian, Spanish, Swedish and Ukrainian.

What is new in this release:

• Added translations in 8 languages
• Preferences to select a language and to check for a new version
• Spectral density ruler
• Added a menu bar, cleaned up the tool bar.
• Better OS X integration
• Show the version number in the window
• Pre-compute the cosine table to speed up analysis by A±16%
• Use jhbuild and ige-mac-bundler to build and package Spek on OS X
• spek(1) man page
• Avoid using APIs depreciated in GTK3
• Fixed link activation on OS X (issue 31)
• Fixed new version detection on OS X
• Fixed duration for unsynchronised ID3v24 mp3 tags (upstream fix)
• Fixed right click Quit (issue 24) and the Q shortcut (issue 44)