Spek is a lightweight Windows application whose purpose is to help you build the spectrogram for an audio file in order to analyze the frequencies comprised in a sound.
The layout is intuitive enough to be configured without having to consult a help manual or watch online tutorials.
The program uses the GNOME platform which includes the Lib, GTK+, Cairo, Pango, as well as the FFmpeg libraries.
Spek was designed with an overall simplicity in mind, so it doesn’t comprise many configuration settings.
You are allowed to upload the audio files into the working environment using the built-in browse function or “drag and drop” operations.
As soon as you add an audio file, be it a lossy or lossless compressed audio format, the tool automatically generates its spectrogram in the primary panel.
Last but not least, you are allowed to export the spectrogram to PNG file format and use hotkeys for a better control over the entire process (they cannot be reassigned). Since it doesn’t require much computer knowledge to work with this app, even rookies can master the entire process with minimum effort.
During our testing we have noticed that Spek carries out a task quickly, and no errors showed up throughout the entire process. It is not quite friendly with system resources, so the overall performance of the computer may be hampered.
To sum things up, Spek offers a simple yet efficient software solution when it comes to helping you generate spectrograms. It can be easily installed and configured by all types of users, regardless of their experience level.