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What's that sound?

Listen to a sound and find the matching picture from three choices—drums go boom, bells jingle, cars honk, and birds chirp. In the “Loudness” tab, choose the louder of two sounds; in “Speed,” choose the faster one. Each sound appears with waves of different sizes and spacing, so you can see and answer even when sound is off or the device is muted. Tap Replay to hear it as many times as you like. The correct spot changes each round, so you can’t solve it by memorizing positions. Practice listening for loudness, speed, and sound differences—not pitch.