Learn a handler's whistles by ear

Paste a YouTube link above, or drop an audio / video file anywhere on this page. The whistles get pulled out and drawn as a pitch line. Turn on your mic and your whistle gets drawn on top, so you can see how close you are.

• See what's coming: the line scrolls toward the playhead, so the next command is always in view.
• Loop the hard bits: drag on the timeline, or hit ⟲ on any command.
• Call & response: it pauses after each command so you can whistle it back, then scores you.

🎧 Wear headphones when using the mic, or it will hear the video and score itself.