
A virtual theremin where students press and drag over a plane. Moving left and right changes pitch, moving up and down changes volume, and readouts show frequency, note, volume and wavelength.
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Drum Pads gives students a grid of sixteen labeled pads in 3D. Each one is a drum sound made from oscillators and noise, such as a kick, snare, hi-hat, tom or conga. Students play by clicking a pad or pressing keys in the rows 1-4, Q-R, A-F and Z-V. The last drum played and the tempo are displayed. Students can record a pattern, press Loop last 4 bars to hear it repeat at a chosen tempo from 60 to 180 BPM, then stop or clear it. It shows how rhythm, tempo and the sound of percussion work, and suits music and science lessons on sound.
Yes. Drum Pads is free, needs no sign-up and works in any modern browser, including classroom whiteboards, tablets and phones.
Play a pattern on the pads, then press Loop last 4 bars. The simulation repeats the last 16 beats at the tempo you chose. Use Stop loop to end it and Clear recording to start over.
The sound starts near 150 hertz and sweeps quickly down to about 45 hertz. Your ear hears that fast drop in pitch as a low thump.
Hi-hats are bursts of noise that contain very high frequencies, above about 5 kilohertz, which we hear as a bright, sharp sound.
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