What Does a Frequency Generator Do?
It creates a sound wave at the exact frequency you choose. This lets you test how your speakers or headphones behave at specific pitches, find where they distort and compare them with another device. The audible range is roughly 20 Hz to 20 kHz, though adults often lose the highest end. See the hearing range overview.
Frequency Ranges and What They Mean
- 20 to 60 Hz: sub-bass, felt more than heard
- 60 to 250 Hz: bass, kick drums and bass guitar
- 250 Hz to 2 kHz: mids, most of the human voice
- 2 to 6 kHz: presence, speech clarity
- 6 to 20 kHz: treble, cymbals and air
Using Frequencies to Troubleshoot
Low tones around 50 to 100 Hz reveal weak bass or rattling cases. Mid tones around 1 kHz show general clarity. High tones from 8 to 12 kHz test tweeters and hearing. If a speaker crackles at one specific frequency, there may be a loose part or a damaged cone. See how to fix a crackling speaker.
Related Tools
Try the tone generator, bass test and speaker frequency range guide.
Related Tools & Guides
Frequently Asked Questions
What is the best frequency to test a speaker?
A sweep from 20 Hz to 20 kHz is ideal. For quick checks use 100 Hz, 1 kHz and 10 kHz.
Why does my speaker go silent at low frequencies?
Small speakers cannot move enough air for deep bass.
Can a frequency damage my speaker?
At high volume, yes. Keep volume moderate.
What frequency removes water from a speaker?
Around 165 Hz is widely used.