# Spek – Acoustic Spectrum Analyser

Spek (IPA: /spɛk/, ‘bacon’ in Dutch) helps to analyse your audio files by showing their spectrogram. Spek is free software available for Unix, Windows and Mac OS X.

## Features

- 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.

## Screenshots

## Download

| spek-0.7.tar.bz2 (375 KiB) instructions

| spek-0.7.2.msi (7.21 MiB) spek-0.7.2.zip (8.34 MiB) instructions

| spek-0.7.2.dmg (7.57 MiB) instructions

## News

- 2011-08-17: Spek and Lion
- 2011-04-24: Spek 0.7 Released
- 2011-03-16: Spek status update
- 2010-07-13: Spek 0.6 Released
- 2010-07-04: GStreamer, FFmpeg and Spek

## Roadmap

Features planned for the 1.0 release:

- Zoom and horizontal scroll
- Adjust spectral density range (dB)

## Contribute

Spek is free and open source software licensed under GNU GPL v3. The project is written in C and Vala, the code is hosted on GitHub. Patches can be sent as merge requests or attached to a new issue.

Report bugs and request new features on the issue tracker.

Translation is done via Transifex. Don't hesitate to translate Spek into a new language or to improve existing translations.

## Contact

Spek is maintained by Alexander Kojevnikov, you can contact him by email.