Audio & Music

Calculate online decibel levels from SPL, power, voltage, or amplitude ratios, compare gain or loss, and solve measured values for audio and signal checks.

Generate sleep sound online with noise-color recipes, filter controls, timers, fades, safe-volume caps, and charts for gentler bedtime masking plans.

Measure music tempo online with tap input, rolling BPM, drift tracking, and session exports for quick rehearsal clicks, cue notes, or metronome setup.

Generate tempo practice plans online with metronome playback, tap tempo, swing control, and ramp blocks so you can steady timing and build speed in stages.