This sine wave can play at any frequency despite Scratch's pitch limit. How it's work? Depending on the frequency it plays different sine wave assets with different pitches. Interesting thing: to play sound more clearly on high frequency, you can go in control panel, go to sound, found your current speaker, click on him and click Properties, go to Advanced and try set Sample rate to max supported (if it has more than 48000 Hz), click OK and reload the page. Further, when playing high frequencies in this project, they will be cleaner since the scratch will load them in higher quality. Or try opening the project in Firefox instead of Chrome. This will work too!
