KeyTestDIAGNOSTIC DE L’APPAREIL
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TEST MATÉRIEL EN LIGNE

Test de Haut-parleurs

Testez les canaux gauche et droit, les graves, médiums, aigus, balayages et signaux révélateurs.

STEREO & FREQUENCY DIAGNOSTIC

Hear every part of your speakers.

Locate each channel, explore the full range and reveal buzzes, rattles or missing frequencies.

READY TO TEST
Start with your device volume lowPure tones can feel louder than music. Raise the volume only if needed.

SELECTED SIGNAL

Voice1,000 Hz · 0.7 second pulse
1 · Choose a frequency
2 · Choose a duration

ADVANCED SIGNALS

Find problems a single tone can miss.

Generated locally · no audio file
Buzzing or rattling?

Replay the sustained bass and rattle finder. A physical vibration at repeatable frequencies can indicate a loose part or damaged driver.

One side sounds weaker?

Use the same tone and level on left, then right. Check balance settings and cable connections before assuming hardware damage.

A frequency disappears?

Small speakers naturally miss deep bass, while high-frequency hearing varies. Sudden gaps in the sweep are more useful than absolute loudness.

YOUR LISTENING RESULT

Record what you heard.

Compare at a comfortable volume. Mark a problem only when it repeats with the same signal.

Left and right are equally clear
Bass has no repeatable buzz or rattle
Voices and midrange sound clear
Treble is present without crackle
Sweep has no sudden gap or distortion

RAPPORT DE DIAGNOSTIC LOCAL

Test de Haut-parleurs résultat

Run the guided signals, then record the audible result for each row.

Not assessed
Test signal level
25%
Checks completed
0 / 5
Left and right are equally clear
Not assessed
Bass has no repeatable buzz or rattle
Not assessed
Voices and midrange sound clear
Not assessed
Treble is present without crackle
Not assessed
Sweep has no sudden gap or distortion
Not assessed

Ce que ce résultat confirmeThe listener could hear the generated channels and frequency checks and recorded whether repeatable audible problems were present.

Ce qu’il ne peut pas prouverAcoustic frequency response, safe sound-pressure level, amplifier power, or whether a problem originates in the speaker, enclosure, operating-system processing or hearing.

Signals are generated locally with the Web Audio API. KeyTest does not listen through your microphone or automatically judge the speaker—the final result comes from what you hear.

À PROPOS DE CE TEST

Des réponses rapides sans installer de logiciel.

Testez les canaux gauche et droit, les graves, médiums, aigus, balayages et signaux révélateurs.

Limite du navigateur: Le diagnostic du navigateur fournit des indications utiles, mais ne remplace pas une inspection physique ou une réparation professionnelle.

Les données du diagnostic sont traitées localement et ne sont pas envoyées à KeyTest.