Harmonics by 313
Mix gentle tones and background sound. Use headphones to hear a different tone in each ear, or choose Speakers for a pulsing sound.
Presets
Choose a mix of slow or fast pulses. A green outline marks the current mix.
Tuning
Choose the base pitch. 313 is our brand sound. Each octave down halves the pitch; it does not change the pulse speed.
What am I seeing?
Frequency is the number of cycles per second, measured in hertz (Hz). Amplitude is the size of a wave: increasing a row's level makes its curve larger and its tone louder. At the default visual speed, the animation runs 20 times slower so you can see its shape. Visual settings do not change the sound. The animation freezes when paused.
Pulse speeds
Each row is a speed in pulses per second. Adjust its level or select its name to hear it alone.