Microphone test
Check your input level before a call or recording.
Relative input meter. Requires microphone permission.
Loading your audio workspace…
How to use this tool
- 01
Open the tool below
- 02
Use its controls and preview
- 03
Save your result when available
New processing and analysis tools accept browser-decodable audio up to 20 MB and 60 seconds per file, with at most two channels. Longer files can be cut into shorter clips. Processed audio exports as 16-bit PCM WAV.
Does my recording leave my device?
The available upload-processing tools decode and process audio in this browser. Microphone tools ask for permission. System text-to-speech may use an online voice provider when an online voice is selected. Available AI tools download models after you start, then process audio locally. Planned tools do not accept files.
What should I know about the results?
Relative input meter. Requires microphone permission.
Try a short clip first and listen before sharing. Processing can introduce artifacts. Analysis describes the recording, not the identity, health or trustworthiness of a person.
Keep working on your voice
New tool descriptions and controls support English and 简体中文. Navigation follows your selected interface language.