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2. Sound attenuator - Wikipedia

   en.wikipedia.org/wiki/Sound_attenuator

   A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces.

3. Blackmer gain cell - Wikipedia

   en.wikipedia.org/wiki/Blackmer_gain_cell

   The dbx noise reduction system, which used the Blackmer cell, had limited success in semi-professional market and failed in consumer markets, losing to Dolby C. [11] The only mass market where dbx achieved substantial use was the North American Multichannel Television Sound , which was introduced in 1984 and operating until the end of analogue ...

4. Noise control - Wikipedia

   en.wikipedia.org/wiki/Noise_control

   Using a combination of sound absorption materials, arrays of microphones and speakers, and a digital processor, a restaurant operator can use a tablet computer to selectively control noise levels at different places in the restaurant: the microphone arrays pick up sound and send it to the digital processor, which controls the speakers to output ...

5. dbx (noise reduction) - Wikipedia

   en.wikipedia.org/wiki/Dbx_(noise_reduction)

   The logo represents both the company and its noise reduction system. dbx is a family of noise reduction systems developed by the company of the same name.The most common implementations are dbx Type I and dbx Type II for analog tape recording and, less commonly, vinyl LPs.

6. dbx (company) - Wikipedia

   en.wikipedia.org/wiki/Dbx_(company)

   TASCAM Portastudio 244 with dbx noise reduction processor. A pro noise reduction card was the dbx k9, designed to fit into the pro dolby-A A361 frames, which were already in wide use in pro studios of the time, to reduce noise in reel-to-reel tape recordings. One feature of the dbx system was an inbuilt noise-gate, to just shut off anything ...

7. Dolby noise-reduction system - Wikipedia

   en.wikipedia.org/wiki/Dolby_noise-reduction_system

   A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog audio tape recording. [1] The first was Dolby A, a professional broadband noise reduction system for recording studios that was first demonstrated in 1965, but the best-known is Dolby B (introduced in 1968), a sliding band system for the consumer market ...

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Dynamic range compression - Wikipedia

   en.wikipedia.org/wiki/Dynamic_range_compression

   Compression is used to improve performance and clarity in public address systems, as an effect and to improve consistency in mixing and mastering. It is used on voice to reduce sibilance and in broadcasting and advertising to make an audio program stand out. It is an integral technology in some noise reduction systems.