Test your microphone with a real-time level meter, frequency spectrum visualization, and device info. Verify your mic works before calls or recordings.
Convert between MP3, WAV, OGG, AAC, and FLAC
Reduce audio file size with bitrate control
Change audio sample rate (8 kHz to 96 kHz)
Resize images with custom dimensions, percentage, or social media presets.
Convert between metric and imperial length units.
Select your microphone from the dropdown, click "Test Microphone", and speak. The level meter and frequency spectrum show real-time audio input from your mic.
The spectrum shows which frequencies are present in your audio input. Voice typically shows energy between 80 Hz and 3 kHz.
Yes. Use the dropdown to switch between available audio input devices on your computer.
The tool displays the actual sample rate (usually 44.1 kHz or 48 kHz) and channel count (mono or stereo) reported by the audio device.