MICROPHONE TEST WITH PLAYBACK

How to test your microphone with playback

1. Choose a microphone if more than one is listed. Device names usually become available after the browser grants permission.
2. Press Start Recording and allow microphone access.
3. Speak at the same distance and volume you would use during a call or recording.
4. Press Stop when you have enough audio, or let the page stop automatically at ten seconds.
5. The microphone track is released when recording stops. Press Play on the local audio control to hear the captured clip.
6. Clear the clip when finished. Recording again replaces the previous in-memory clip.

What playback tells you that a level meter cannot

A live level meter can confirm that sound reaches the browser, but it cannot tell you whether speech is muffled, distorted, echoey, noisy or coming from the wrong microphone across the room. Listening to a short recording gives you direct evidence of the audio stream the browser captured.

Why GearCheck Lab limits clips to ten seconds

This is a diagnostic tool, not a general voice recorder. A short maximum keeps the test focused, limits browser memory use and encourages repeatable before/after comparisons. Ten seconds is enough to say a normal sentence, pause for room noise and listen for obvious hum, hiss, clipping or dropouts.

The clip exists as a browser Blob and object URL only for the current page session. GearCheck Lab does not create a server-side audio file from this test.

Browser format and stream limitations

Recording format depends on the browser's MediaRecorder support. Chrome/Edge often use WebM/Opus, Firefox may use WebM or Ogg/Opus, and Safari support can differ. The format shown is the MIME type actually reported for the generated clip.

The track sample rate and channel count come from browser-exposed stream settings when available. They are session values, not a full manufacturer microphone specification.

If the playback sounds bad

• Confirm the selected device is the microphone you intended to use.
• Move closer if the voice is distant and room noise dominates.
• Lower operating-system or interface gain if speech sounds clipped or harsh.
• Try another USB port or cable for intermittent USB microphones.
• Compare the separate live level and spectrum tests to isolate low level, noise or frequency-content symptoms.
• Repeat in the application you actually use, because conferencing and streaming software can apply extra processing.

Requested processing versus actual processing

This page asks the browser for echo cancellation, noise suppression and automatic gain control to be disabled. A browser, operating system, audio driver or device can still apply processing outside the page, so the recording should not be described as guaranteed raw microphone data.

If you specifically need unprocessed studio capture, verify the signal path in the recording software and audio-interface settings you actually plan to use.