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  2. Amazon Echo Buds - Wikipedia

    en.wikipedia.org/wiki/Amazon_Echo_Buds

    Amazon Echo Buds; Developer: Amazon: Product family: Echo: Type: Wireless earbuds: Release date: October 30, 2019 () Input: Echo Buds (each) Dual external beam-forming microphones, single internal microphone, accelerometer, proximity, touch: Connectivity: Echo Buds (each) Bluetooth Charging Case micro-USB port: Dimensions: Echo Buds (each) 22 x ...

  3. Amazon Alexa - Wikipedia

    en.wikipedia.org/wiki/Amazon_Alexa

    Amazon Alexa, or, Alexa, [2] is a virtual assistant technology largely based on a Polish speech synthesizer named Ivona, bought by Amazon in 2013. [3] [4] It was first used in the Amazon Echo smart speaker and the Echo Dot, Echo Studio and Amazon Tap speakers developed by Amazon Lab126. It is capable of natural language processing (NLP) for ...

  4. Sound localization - Wikipedia

    en.wikipedia.org/wiki/Sound_localization

    Sound localization is a listener's ability to identify the location or origin of a detected sound in direction and distance. The sound localization mechanisms of the mammalian auditory system have been extensively studied. The auditory system uses several cues for sound source localization, including time difference and level difference (or ...

  5. Echocardiography - Wikipedia

    en.wikipedia.org/wiki/Echocardiography

    Echocardiography, also known as cardiac ultrasound, is the use of ultrasound to examine the heart. It is a type of medical imaging, using standard ultrasound or Doppler ultrasound. [1] The visual image formed using this technique is called an echocardiogram, a cardiac echo, or simply an echo . Echocardiography is routinely used in the diagnosis ...

  6. Echo suppression and cancellation - Wikipedia

    en.wikipedia.org/wiki/Echo_suppression_and...

    Echo cancellation alone may be insufficient in many applications. Echo cancellation and suppression can work in conjunction to achieve acceptable performance. Quantifying echo. Echo is measured as echo return loss (ERL). This is the ratio, expressed in decibels, of the original signal and its echo.

  7. Chess rating system - Wikipedia

    en.wikipedia.org/wiki/Chess_rating_system

    Chess rating system. A chess rating system is a system used in chess to estimate the strength of a player, based on their performance versus other players. They are used by organizations such as FIDE, the US Chess Federation (USCF or US Chess), International Correspondence Chess Federation, and the English Chess Federation.

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