Sonic Visualiser is described as 'Free, open-source application for Windows, Linux, and Mac, designed to be the first program you reach for when want to study a music recording closely. It's designed for musicologists, archivists, signal-processing researchers, and anyone else looking' and is an app in the audio & music category. There are more than 10 alternatives to Sonic Visualiser for a variety of platforms, including Mac, Windows, Linux, Android Tablet and iPad apps. The best Sonic Visualiser alternative is Transcribe!. It's not free, so if you're looking for a free alternative, you could try Praat or Amazing Slow Downer. Other great apps like Sonic Visualiser are Capo, AudioRetoucher, Audioalter and Audiophile TuneLite.