For device testing
Frequency Sweep Generator
Start low. Sweep high. Listen for rattles, dips, buzz, or sudden jumps in volume.
Use the main tone generatorSweep controls
100 Hz to 10 kHz over 10sReady. Start with low volume.
Sweeps can become loud or uncomfortable at some frequencies. Keep volume low and stop immediately if the sound is unpleasant.
What to listen for
A clean sweep should feel smooth. If one part gets much louder, disappears, rattles, or buzzes, your room or playback gear may be reacting to that frequency range.
This tool checks playback equipment, not people.