Quick answer
Distortion is easiest to identify when a repeatable tone produces buzzing, crackling or harshness that is absent at lower levels.
Test progressively and compare several frequencies. Do not keep increasing volume just to make a symptom appear.
Common causes
Learn to identify crackling, vibration and tonal changes with a progressive, cautious test.
- Clipping from source
- Excessive level
- Speaker resonance
- Debris or moisture
- Persistent hardware issue
What to check step by step
- Compare two different audio sources.
- Test at a moderate level.
- Change one variable at a time.
- Note whether the symptom is constant or limited to a frequency or app.
- If it persists, avoid stressing the device and consider a professional check.
How to test it online
Test progressively and compare several frequencies. Do not keep increasing volume just to make a symptom appear.
Speaker distortion test — Online. Distortion is easiest to identify when a repeatable tone produces buzzing, crackling or harshness that is absent at lower levels.
How to interpret the result
Distortion is easiest to identify when a repeatable tone produces buzzing, crackling or harshness that is absent at lower levels.
Test progressively and compare several frequencies. Do not keep increasing volume just to make a symptom appear.
What to avoid
- Do not insert needles, clips or objects into the grille.
- Avoid liquid and intense heat during checks.
- Do not keep the volume at maximum during a prolonged test.
When to consider a professional check
If there is visible damage, an unusual smell, abnormal heat, charging problems, or persistent symptoms after a drop or liquid exposure, stop testing and contact the manufacturer or a repair service.
Summary
Distortion is easiest to identify when a repeatable tone produces buzzing, crackling or harshness that is absent at lower levels. Test progressively and compare several frequencies. Do not keep increasing volume just to make a symptom appear.