About This Tool
What is 音调生成器?
A tool for generating sound at a specified frequency and waveform. Useful for speaker testing, instrument tuning, hearing checks, and sound experiments. Supports four waveforms: sine, square, sawtooth, and triangle.
How to Use
- Enter the desired frequency (Hz) or select from presets.
- Choose a waveform (sine, square, etc.).
- Adjust the volume.
- Click 'Play' to generate the sound.
Key Features
- Free frequency setting
- Sine, square, sawtooth, and triangle waveforms
- Volume control
- Preset frequency options
Tips
- A4 (the note A) at 440Hz is the standard tuning reference.
- Sine waves produce the purest tone; square waves sound more electronic.
- Prolonged listening at high volume can damage hearing — use caution.
音调生成器
生成指定频率的声音
440 Hz
20 Hz20 kHz
Hz
Frequently Asked Questions
正弦波、方波、锯齿波和三角波有什么区别？▼
正弦波产生纯净平滑的音调，无泛音——适合调音和听力测试。方波有嗡嗡的电子声和奇数泛音。锯齿波包含所有泛音，声音明亮而刺耳。三角波比方波柔和，有空洞、醇厚的音色。
可以用这个给乐器调音吗？▼
可以。将频率设置为目标音符（如A4为440Hz）并播放正弦波。通过听觉将生成的音调与乐器音符比较。更精确的调音请使用能从麦克风检测音高的专用调音器工具。
人类能听到的频率范围是多少？▼
大多数人能听到20Hz到20,000Hz（20kHz）的频率。2,000-5,000Hz附近灵敏度最高。听力范围随年龄自然下降，尤其是8,000Hz以上的高频。