When to disable audio enhancements for accurate testing

Your microphone sounds different from one app to another, or a noise filter seems to cut off the start of your words. To find out what the microphone is actually picking up, compare it with audio processing turned off and on.

The Microphone Test lets you switch Noise suppression, Echo cancellation, and Auto volume on or off. Turning them off is useful for diagnosis, but it does not always give you a completely raw signal. Your operating system, microphone driver, or browser may still process the audio.

Compare the microphone with enhancements off and on

Open the Microphone Test and press Start microphone. Allow microphone access when the browser asks.
Choose the microphone you want to test from the device list. Keep the microphone in the same place and use the same speaking volume for each comparison.
Turn off Noise suppression, Echo cancellation, and Auto volume. Speak at a normal distance and watch the signal meter, waveform, and status. Note whether the meter moves and whether the waveform follows your words.
Press Record 5 seconds, say the same short sentence, and play it back. Listen for clipped words, a steady hiss, distortion, or changes in loudness.
Turn on one switch at a time and repeat the same sentence. This shows which processing setting changes the sound, instead of combining several changes at once.

For a useful comparison, keep other conditions steady. Do not move the microphone, change the input device, or adjust the computer's input volume between recordings. If you are trying to reproduce a problem in a call, test with the same app and settings you normally use as well.

What the result means

The sound is clearer with the switches off

A processing setting is changing the sound in a way you notice. Noise suppression can mistake quiet syllables for background noise, while Auto volume can raise room noise during pauses. Leave the setting that causes the problem off if your app allows it, or try a lower processing level if one is available.

The sound is noisier with the switches off

The microphone is picking up room sounds that the processing was reducing. That does not mean the microphone is faulty. If the sound is clean enough for your call or recording with the processing on, you may prefer to keep it enabled.

The meter or waveform changes, but playback sounds similar

The processing may affect the signal level or display without making an obvious difference in a short recording. Listen on headphones at a comfortable volume and repeat a sentence that includes quiet words. The signal meter's loudest level in dB is a level reading, not a direct score of microphone quality.

Nothing changes when you toggle a switch

The browser or device may not apply that option to the selected microphone, or another layer may already be processing the audio. A lack of change does not prove that the signal is unprocessed. Compare the browser test with the app where you hear the problem.

The recording is distorted with the switches off and on

Processing is less likely to be the whole cause. Check the input level, microphone position, cable, and the selected device. If the distortion follows the same microphone to another device, hardware or its connection may be at fault.

How to control processing outside the test

Check Windows audio enhancements. In Windows 11, open Settings › System › Sound › Input, select your microphone, and look for Audio enhancements. Set it to Off for a comparison if that option appears. Some devices and drivers do not show this setting.
Check the app's microphone settings. Video call and recording apps can apply their own noise reduction or voice filters. Temporarily turn those off, then repeat the test in the app. If the browser test sounds fine but the call does not, the app's input choice or processing is a likely difference.
Check macOS microphone modes. macOS does not have one universal audio-enhancements switch for every microphone. During a supported call or recording, open Control Center › Mic Mode and choose Standard instead of Voice Isolation or Wide Spectrum for a baseline. The menu is available only when the active app and device support it.
Check the microphone input level. On Windows 11, use Settings › System › Sound › Input and adjust the input volume. On macOS, open System Settings › Sound › Input and check the selected device and input level. Do not raise the level so far that normal speech clips.
Retest after closing other audio apps. Quit call, recording, and voice assistant apps, then reload the test. If a microphone stops or disappears, reconnect it and select it again.

On an iPhone or iPad, some supported apps expose microphone modes from Control Center › [App] Controls › Mic Mode. Choose Standard to compare without Voice Isolation or Wide Spectrum when that option is available. Android microphone processing varies by phone and app, so check the active call or recorder's audio settings rather than expecting a single system-wide switch.

When the microphone itself may be faulty

Test the same microphone on another computer or phone, if possible, and compare at a normal input level. If the recording is still distorted, cuts out, or stays extremely quiet with processing disabled, check the connector and cable. A headset with a damaged cable may need replacement, while a built-in laptop microphone may need service. A browser test can reveal symptoms, but it cannot inspect the microphone's internal components.

Why disabled enhancements may not mean raw audio

The switches in the test control processing the browser can request. The operating system, audio driver, headset firmware, or microphone itself may also alter the signal before the browser receives it. The browser cannot always reveal which of those layers is active.

For hardware diagnosis, compare the least-processed sound you can get. For everyday calls, test with the settings you actually plan to use. The best setting is the one that keeps your words clear without making the background distracting.

Your test recording stays on your device. Nothing you record is uploaded.