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  2. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Active noise control ( ANC ), also known as noise cancellation ( NC ), or active noise reduction ( ANR ), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...

  3. Texas Instruments SN76489 - Wikipedia

    en.wikipedia.org/wiki/Texas_Instruments_SN76489

    The SN76489 [1] Digital Complex Sound Generator (DCSG) is a TTL -compatible programmable sound generator chip from Texas Instruments. [2] Its main application was the generation of music and sound effects in game consoles, arcade video games, and home computers ( TI-99/4A, BBC Micro, ColecoVision, IBM PCjr, Tomy Tutor, Master System, Game Gear ...

  4. Texas Instruments SN76477 - Wikipedia

    en.wikipedia.org/wiki/Texas_Instruments_SN76477

    There were two different sizes of the SN76477 available. The SN76477N was in a standard 0.6 in (15.24 mm) width dual in-line package (DIP). The SN76477NF was in a less common 0.4 inch (10.16 mm) width DIP. SN76477 top view. A redraw of a demonstration circuit used to try out most of the capabilities of the 76477 sound chip.

  5. How to pre-order the Sonos Ace headphones - Engadget

    www.engadget.com/how-to-pre-order-the-sonos-ace...

    Pre-order the Sonos Ace headphones now for $449 directly from the company's website . $449 at Sonos. The Sonos Ace wireless headphones offer features like active noise cancellation and aware modes ...

  6. Bose QuietComfort Earbuds review: The noise ... - Engadget

    www.engadget.com/bose-quietcomfort-earbuds...

    To remedy this, the company introduced an all-new noise-cancelling model in its coveted QuietComfort line: the QuietComfort Earbuds. At $279.95, this is definitely a premium option, so Bose needs ...

  7. TMS320 - Wikipedia

    en.wikipedia.org/wiki/TMS320

    TMS320. Texas Instruments TMS32020. TMS320 is a blanket name for a series of digital signal processors (DSPs) from Texas Instruments. It was introduced on April 8, 1983, through the TMS32010 processor, which was then the fastest DSP on the market. The processor is available in many different variants, some with fixed-point arithmetic and some ...

  8. Street by 50 headphones gets over-ear active noise cancellation

    www.engadget.com/2013-08-01-street-by-50-shhhhh.html

    Street by 50 Over-Ear Active Noise Control sport 40mm drivers and leather ear cushions, and should get you upwards of 70 hours of play time on a set of batteries, according to SMS's numbers. The ...

  9. Power electronic substrate - Wikipedia

    en.wikipedia.org/wiki/Power_electronic_substrate

    Power electronic substrate. The role of the substrate in power electronics is to provide the interconnections to form an electric circuit (like a printed circuit board ), and to cool the components. Compared to materials and techniques used in lower power microelectronics, these substrates must carry higher currents and provide a higher voltage ...

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