Spek vs SQLZOO
A side-by-side look at Spek and SQLZOO. For an in-depth review of either product, follow the links below.
Spek
Audio & Music
Spek is an open-source audio spectrum analyzer software for Windows, Mac and Linux. It allows analyzing and visualizing audio in real-time with a fast Fourier transform. Useful for checking audio quality, finding issues, and general audio analysis.
audioanalysisspectrumfft
SQLZOO
Education & Reference
SQLZOO is a free online resource that helps users learn SQL concepts through interactive tutorials and exercises. It covers SQL syntax for a variety of database management systems.
sqldatabasetutorialsexercises