microphones

They did this by using two microphones, using one of the microphones for the singer, the other for the background noise.

Not only hairdressers but also radio hosts -- microphones harbour a lot of dangerous bacteria, you see.

Otherwise yes, you can buy (today) hardened P25 handsets with IP66+ rated fist microphones and all that.

You want them as far away and pointed as far away from the microphones as possible.

By inverting the phase on one of the microphones and then summing these two signals they filtered out the background noise.

Interestingly, the government didn't have to push for it at all; people willingly brought the microphones into their homes on their own.

For me one of the most impressive parts of this article where how they managed to eliminate feedback on the vocal microphones.

Old microphones, amplifiers, and vinyl meant that with the restrictions of the media, what you had either sounded good or really terrible.

With its multiple microphones Alexa is pretty good at hearing you over the music.

Of course new listening devices using microphones can improve on the human ear.

For this kind of work they probably wanted to measure dynamic pressures within the tank, which they would most likely do with microphones.

Note that for the more common analog microphones, the microphone itself doesn't determine the sample rates; it's the digital sampler to which it's connected.

Noise-canceling headphones are freakishly complicated, directional (what is often meant by "noise canceling") microphones are possible with very simple designs.

Don't most people already have cameras and microphones in their bedrooms that we hope aren't "live"?

"The question we must ask ourselves is whether, as technology develops, we are content to leave a safe space—a new means of communication—for terrorists to communicate..." This kind of argument is only a few steps removed from physically placing microphones in private residences.