Audio test bench
Online Frequency Generator
Play a steady test tone, set the level low, and adjust the frequency as needed.
1,000Hz
Start with a known tone, keep the level low, and adjust from there.
20 Hz - 20 kHz
Drag knob or use keyboard arrows
Quick Tones
One-click references Waveform
Start near silent, then raise the volume slowly.
Fine controls
Frequency range guide
Audio rangeCommon uses
Speaker checks
Find buzzes, rattles, and weak bands.
Level setup
Send a repeatable 1 kHz reference.
Signal tracing
Confirm routes, cables, and inputs.
Pitch reference
Use 440 Hz without opening a DAW.