Freq Lab

frequency-domain audio tools

Generator

200.0 Hz
7.83 Hz
35%

Carrier is the tone you hear; beat is the difference between the two channels (binaural), the envelope rate (isochronic), or the acoustic interference rate (monaural). Start low — 60–70 dB is plenty.

LFO drift

Orbits the stereo image (± pan) or slowly detunes the beat.
0.08 Hz
60%

Session timer

—:—

Presets — beat bands

Presets — carrier tones

Frequencies from widely circulated Rife / Solfeggio lists. This is a signal generator, not a medical device.

Spectrum

Left—
Right—
Beat—
Peak—
Elapsed0:00
Idle. Press Start (or Space) — headphones recommended for binaural mode.