- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Sonic Electronix always strives to be the premiere online shopping destin...

To be safe, note the volume level that allows you to listen to a 1,000 Hz tone without discomfort and do not stray too far above this level, even if you can’t hear much – especially in the high range, where your hearing is the most fragile. To play a constant tone, click Play or press Space.

This online tone generator plays a tone at 25 Hertz (Hz) when the "Start" button is clicked. You can change the frequency of the tone by moving the slider or entering your desired frequency into the text box above.

2018年12月19日 · Connects cells to communicate with environment. Enhances understanding, tolerance and communication. Energizes immune, respiratory and circulation systems. Creates pure and stable life. Cleans...

Explore the pure 25 Hz sine tone, ideal for sound testing, audio calibration, and scientific research. This specific frequency is commonly used for evaluating the performance of audio...

230 伏, 50 Hz 与120 伏, 60 Hz的波形比较 工频 （mains frequency（英），utility frequency（美））是“电网工作频率”的简称，又称 电源频率 ，指 电网 中 交流电 的 频率 ，同一电网中的所有 发电机 、 输配电设备 和用户均使用这一频率的交流电。

On our website, you can listen online and download wav or mp3 audio file 25 Hz Tone Sound Sine Wave for free to your computer or smartphone.

25 Hz Power Transmission System may refer to: Amtrak's 25 Hz traction power system; SEPTA's 25 Hz traction power system

2005年3月23日 · 20 Hz tones are more visceral than the 25 hz tone. 20 Hz is inaudible.....25 Hz is barely audible to most. A strong 20 Hz response will give a more powerful impact than 25 Hz......Certainly, if money isn't an issue, go with the 20 Hz performer. That said, manufacturers specs mean little.

2020年5月1日 · 25 Hz used to be very common for electric trains. I think a little bit of it is still in use. It would have been selected because it was a good compromise between electrical inefficiency and mechanical inefficiency at the time.