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  2. Dynamic range compression - Wikipedia

    en.wikipedia.org/wiki/Dynamic_range_compression

    The quiet sounds below the threshold remain unaffected. This is the most common type of compressor. A limiter can be thought of as an extreme form of downward compression as it compresses the sounds over the threshold especially hard. Upward compression increases the volume of quiet sounds below a certain threshold.

  3. Noise-canceling microphone - Wikipedia

    en.wikipedia.org/wiki/Noise-canceling_microphone

    Sound that's much closer to the front port than to the rear will make more of a pressure gradient between the front and back of the diaphragm, causing it to move more. The microphone's proximity effect is adjusted so that flat frequency response is achieved for sound sources very close to the front of the mic – typically 1 to 3 cm. Sounds ...

  4. Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone

    A microphone, colloquially called a mic (/ m aɪ k /), [1] or mike, [a] is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones , hearing aids , public address systems for concert halls and public events, motion picture production, live and recorded audio engineering , sound ...

  5. Soundproofing - Wikipedia

    en.wikipedia.org/wiki/Soundproofing

    A pair of headphones being tested inside an anechoic chamber for soundproofing. Soundproofing is any means of impeding sound propagation.There are several methods employed including increasing the distance between the source and receiver, decoupling, using noise barriers to reflect or absorb the energy of the sound waves, using damping structures such as sound baffles for absorption, or using ...

  6. Windows 10 may soon tell you which apps are using your microphone

    www.aol.com/news/2018-11-30-windows-10-preview...

    A previous build added an icon to the notification area that tells you when your microphone is in use, and the newest update will let you see which app is using it when you mouse over the icon ...

  7. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Sound is captured from the microphone(s) furthest from the mouth (the noise signal(s)) and from the one closest to the mouth (the desired signal). The signals are processed to cancel the noise from the desired signal, producing improved voice sound quality. In some cases, noise can be controlled by employing active vibration control. This ...

  8. Advanced Audio Coding - Wikipedia

    en.wikipedia.org/wiki/Advanced_Audio_Coding

    Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression.It was designed to be the successor of the MP3 format and generally achieves higher sound quality than MP3 at the same bit rate.

  9. Quiet PC - Wikipedia

    en.wikipedia.org/wiki/Quiet_PC

    A fanless CPU cooler based on heat pipe technology. A quiet, silent or fanless PC is a personal computer that makes very little or no noise.Common uses for quiet PCs include video editing, sound mixing and home theater PCs, but noise reduction techniques can also be used to greatly reduce the noise from servers.