2015年12月31日 · - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Sonic Electronix always strives to be the premiere online shopping destin...

80 hertz test tone with a single sound frequency that runs for 10 hours.

2021年5月23日 · 80 Hz sine tone to test your speakers or headphones. Humans can detect sounds in a frequency range from about 18 Hz to 20 kHz. (Human infan...more

This audio file from the Normal Bass (80-200 Hz) category can be used in any creative projects, in a recording studio, on the radio, in theater, cinema, animation, cartoons, as well as for creating your own music and dubbing videos, trailers, advertisements, speeches, presentations, broadcasts, games, applications, programs, videos on YouTube etc.

像上图，这就是设置前置音箱为小之后，分频点可以设置为80Hz。 它的意思是前置音箱主要发出80Hz以上的声音，而80Hz以下的声音由一个固定的斜率自然衰减。 所有的功放都会有这个设置。 并且，一般我们都会把主箱、中置、环绕设置到80HZ，而 低音炮 分频点设置为120Hz。 不过，需要注意的是，低音炮是只发出120Hz以下的声音，而 主音箱 发现80Hz以上的声音。 同时，主音箱分频到80Hz，低音炮负责120Hz以下，也是 THX 的影院标准。 接下来，我就来讲讲为什么会 …

An interactive reference table for musical notes and their pitch frequencies in Hertz (Hz). This is an easy way to reference the pitch of different musical notes. Click on any of the frequencies to play a tone with that note/frequency, just make sure your volume is not set too high, the high pitched notes can be especially intense.

This online tone generator plays a tone at 80 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.

2013年4月26日 · Many forums suggest an 80hz cutoff for crossover for all your speakers for home theater, while some suggest experimenting within the 60 - 80hz range. The theory it seems is that setting a crossover higher ( i.e. ) 80 frees up your speakers to cleanly reproduce sound above that range - whilst letting the sub do all the work below.

2005年2月16日 · With the crossover at 80Hz, it ensures that most everyone will not be able to hear where the low bass is originating from. A higher crossover will compromise the realism for many people. Many speakers are not flat much below 80Hz, even if they do extend below that point, so for the average mid-fi system, a lower crossover does not make much sense.

2017年9月17日 · This is one hour of 80 Hz test tone, sine wave, 0dB. If this video is useful for you, please comment, like and share. Thanks for watching. Check my other tone-videos....more