免费 · 音频
音调发生器（频率发生器）.
播放 1 Hz 到 22 kHz 任意频率的纯音，可选正弦、方波、锯齿波或三角波，支持半音步进、声道平衡和双耳模式。
GENERATED IN YOUR BROWSER
440.0 Hz
Start quietly: high, loud tones can damage hearing and small speakers.
Uses for tuning, speaker and hearing checks, physics lessons or finding a rattle. Binaural mode plays two slightly different tones in each ear (use headphones); claims about effects on the brain are not scientifically established.
使用方法: 音调发生器（频率发生器）
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
Very low and very high tones depend on your speakers. Start at low volume. Runs in your browser.
Tones are synthesised with the Web Audio API; the slider is logarithmic from 20 Hz to 20 kHz; binaural mode sends a slightly different frequency to each ear.
A4 is 440 Hz; one semitone up is 466.16 Hz; “× 2” jumps an octave to 880 Hz.