Microphone, Input & Diagnostics
Online microphone test, hearing range test, tinnitus frequency matcher, mosquito sound test, stereo channel tester, background noise detector, echo detection, mic latency and gain meter, audio loopback, and phase test — for remote workers, streamers, musicians, gamers, and anyone troubleshooting audio.
Available Tools
Microphone Test
Test if your microphone is working with one click. Live dBFS level meter (RMS + peak) with clipping indicator and peak-hold, optional monitor (hear yourself), real-time waveform and spectrum, device picker, detected sample rate / channels, and a permission troubleshooting guide. Audio never leaves your browser.
Launch tool →Mic Latency Tester
Measure round-trip microphone latency in milliseconds. Automated click-and-echo detection over 5/10/20 trials with min / max / average, per-trial bar chart, adaptive noise-floor calibration, browser base/output-latency readouts, and a good/average/poor rating for streaming, recording, and gaming setups.
Launch tool →Audio Latency Measurement Tool
Measure your output / perceived audio latency with no microphone — tap along to a metronome and get your calibration offset in milliseconds, plus a consistency figure and the browser’s reported base/output latency. Ideal for setting an audio offset in rhythm games and DAW monitoring; great for spotting Bluetooth delay.
Launch tool →Mic Sensitivity Analyzer
A guided silence-to-loud test measures your mic’s noise floor, normal speech level, loud peak, signal-to-noise ratio and dynamic range in dBFS — then rates its sensitivity and recommends a gain setting for podcasting and streaming. Live meter and dBFS bar chart included.
Launch tool →Mic Gain Level Meter
Broadcast-style dBFS meter for setting your input gain: responsive peak bar, decaying peak-hold, VU average, a marked green target zone (−18 to −6 dBFS), clip counter, level history, and live raise/lower-gain guidance for streaming and recording.
Launch tool →Mic Distortion Analyzer
Plays a pure reference tone, captures it with your mic, and measures total harmonic distortion (THD %) via FFT — with a harmonic spectrum, 2nd-harmonic readout, real-time clipping detection, and a clean / moderate / heavy rating to find your signal path’s overload point.
Launch tool →Background Noise Detector
Stay quiet and it measures your room/mic noise floor in dBFS, rates it quiet / moderate / noisy, and pinpoints culprits — mains hum (50/60 Hz), low-frequency rumble, fan whine — with a live noise spectrum and floor history. Auto-pauses when it hears you speak.
Launch tool →Noise Floor Analyzer
Technical, time-averaged (Leq) octave-band analysis of your noise floor in dBFS — per-band levels from 31.5 Hz to 16 kHz, flat (Z) vs A-weighted views, dominant-band identification, and broadband totals. The spectral companion to the Background Noise Detector.
Launch tool →Sound Input Monitor
Leave it running to watch your input over time: a scrolling peak + RMS level history (30/60/120 s), a live meter, and cumulative session stats (peak, average, clip count, elapsed) — plus optional pass-through monitoring. Catches intermittent overloads and level drift an instant meter misses.
Launch tool →Echo Detection Tool
Plays a click through your speakers, captures it with the mic, and detects reflections after the direct sound — first-echo delay in milliseconds, the implied surface path, the echo level, an impulse-response view, and a dead / balanced / live room rating averaged over several clicks (with a flutter-echo hint).
Launch tool →Audio Loopback Tester
Confirm your output is routed back to an input. Plays a 1 kHz tone and checks whether it returns on the input you pick — verifying a hardware cable or virtual loopback (Stereo Mix / VB-Cable / BlackHole). Reports detection, return level, loopback strength, and approximate delay, and flags acoustic speaker pickup vs a true loopback.
Launch tool →Stereo Channel Tester
Verify left/right channels with left-only, right-only, both, and alternating tones (distinct pitch per side) and a live L/R indicator. A guided "which side did you hear?" quiz detects swapped, mono, or dead channels, plus an in-phase vs out-of-phase check. No mic needed; works on headphones and speakers.
Launch tool →Phase Test Tool
A deep phase explorer: sweep the L→R phase offset and watch a Lissajous vectorscope and a +1…−1 correlation meter respond, invert channel polarity, and switch to mono to hear out-of-phase audio cancel. Shows the relationship visually before you even press Play.
Launch tool →Appliance Noise Frequency Identifier
Point your mic at a hum, buzz or whine and it finds the dominant frequencies and suggests the likely source — mains hum (50/60 Hz + harmonics), compressor/motor hum, transformer buzz, or coil whine — with a live spectrum, top tonal peaks, and honest heuristic framing.
Launch tool →Baby Cry Frequency Analyzer
Measure the pitch (fundamental frequency) of a cry in real time via autocorrelation, with its range and a pitch-over-time contour. Educational/novelty only — it measures sound, not meaning or health, and makes no medical or diagnostic claims.
Launch tool →Mosquito Frequency Test Tool
Can you hear the mosquito tone? A guided high-frequency test from 8 kHz to 20 kHz plus a free-play slider finds your high-frequency cutoff — including the 17.4 kHz tone teens hear but most adults can’t. Age guide and shareable result. For fun, not a medical hearing test.
Launch tool →Tinnitus Frequency Matcher
Tune a pure tone with a log slider, octave and fine controls until it matches your tinnitus, then read the frequency in hertz and the nearest note. A self-exploration aid — not a diagnosis, measurement, or treatment. Low default volume and safety guidance; see an audiologist for real concerns.
Launch tool →Hearing Range Test (Hz Range Tester)
Sweep a tone from 20 Hz to 20 kHz, test each ear separately via stereo panning, and mark the lowest and highest pitches you can hear to find your personal range with an age comparison. For fun, not a calibrated audiogram — results depend on your headphones. Save/share, all in-browser.
Launch tool →