All Audio Tools

Single tones, 20 Hz - 20 kHz

Test signals for engineers

Several frequencies at once

Linear & exponential sweeps

White, pink & brown noise

Full-spectrum masking

Balanced, rain-like

Deep focus rumble

Mid-band, water-like

Equal loudness to your ears (grey)

Bright, treble-weighted

The brightest noise color

Box, desk & ceiling fan sounds

Two frequencies at once

10-250 Hz low-end tones

5-22 kHz treble tones

Telephone dial pad tones

Dial tone, busy & ringback by region

Text to morse audio & WAV

Sirens, beeps & buzzers

1 kHz bleep, bleep a word

Retro game sounds, WAV export

Free WAV and MP3 reference files

Line-up tones at calibrated dBFS

How high can you hear? + audiogram

How old are your ears?

High-frequency age test

Find your voice type

Find your ringing's pitch

Notched noise at your pitch

Bass response, down to 1 Hz

Left/right stereo channel check

Check wiring polarity

Channels, phase, reach & buzz

5.1 channel-by-channel check

Measure Bluetooth delay

Wireless delay vs wired baseline

Lip-sync for TV & soundbar

Live mic frequency view

Approximate sound levels

Waveform, level & playback

Push water out of a speaker

Speaker cleaner: water, dust & vibration

LUFS, true peak & waveform

Cut any file, export WAV

Cut MP3s, export MP3 or WAV

Song to ringtone, with fades

Louder without clipping

Play any file backwards

Fade in & out, no clicks

Slow down or speed up songs

Shift songs by semitones

Change tempo, keep the key

Any format to MP3 or WAV

30-second speaker check

20-100 Hz tones + sweep

Merge files into one WAV

Hit any LUFS target cleanly

Record & download, no upload

Instant karaoke, center cancel

See a file's frequencies

Tap tempo, 30-300 BPM

16-step beat maker

See your singing live

Note & Hz from mic or file

Tap to find any song’s tempo

Hear any chord in any key

Classic progressions, any key

Play with keyboard or touch

Mic tuner with cents needle

Strike a virtual A440 fork

Guitar, bass, violin & more

Standard, Drop D, E♭, Open G

GCEA, low G & baritone

4-string, 5-string & Drop D

Violin, viola & cello

Chromatic reference notes

Ear training quiz

Name 12 notes, no reference

Name the chord quality

Guess the boosted band

Delay & LFO sync times

Find your standing waves

Notes, Hz & cents

All 88 piano notes in Hz

Ratios, dBu & dBV

Keys, capo & horn parts

Brainwave entrainment

Pulsed tones, no headphones needed

The gamma frequency, explained

Delta & theta settings

Beta settings for studying

396-963 Hz healing tones

Layered meditation sounds

Infinite pitch illusion

High-frequency training whistle

Alternative "Verdi" tuning

Standard concert pitch

The "love frequency"

Solfeggio liberation tone

Solfeggio connection tone

Solfeggio crown tone

Engineering reference

Gamma research frequency

Mains hum frequency

Bass test reference

The hearing age line

Under-25s only