免费 · 设备测试
麦克风测试.
在线检测麦克风是否正常：实时电平表、波形、削波提醒，并可录制 5 秒片段试听。不会上传任何内容。
点击“开始”，允许使用麦克风并正常说话。电平表应随您的声音变化。 所有操作都在本页面内完成。不会上传任何内容，停止或离开页面时会释放设备。
使用方法: 麦克风测试
输入数据或选择文件，调整设置并生成结果。复制或下载之前，请检查结果。
限制与支持格式
输入内容在您的设备上处理。
英语技术说明
Requires microphone permission and a secure (HTTPS) page. Levels are relative digital dBFS values, not calibrated sound pressure. The playback clip stays in this page and is discarded when you leave. Device names appear only after permission.
The Web Audio API analyses the live signal locally to compute RMS level and peak in dBFS. Browser voice processing (echo cancellation, noise suppression, automatic gain) can be switched off to hear the raw input. Nothing is uploaded; the stream stops when you click Stop or leave the page.
Speaking at a normal distance typically peaks between −30 and −6 dBFS; a clipping warning means the input gain is too high.