<blockquote>Freesound: collaborative database of creative-commons licensed sound for musicians and sound lovers. Have you freed your sound today?</blockquote>
Not just a cat purr, but a cat purring next to you. Purrli recreates the sound and the presence of a cat, online. It's soothing, it's free, and it's purrfect!
The AnalyserNode interface represents a node able to provide real-time frequency and time-domain analysis information. It is an AudioNode that passes the audio stream unchanged from the input to the output, but allows you to take the generated data, process it, and create audio visualizations.