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2. Echo suppression and cancellation - Wikipedia

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

   Echo suppression and echo cancellation are methods used in telephony to improve voice quality by preventing echo from being created or removing it after it is already present. In addition to improving subjective audio quality, echo suppression increases the capacity achieved through silence suppression by preventing echo from traveling across a ...

3. Adaptive feedback cancellation - Wikipedia

   en.wikipedia.org/wiki/Adaptive_feedback_cancellation

   The process begins with background noise picked by a microphone getting amplified by a speaker in that same device. This noise is audio feedback which is stored to later be cancelled; An adaptive filter uses an algorithm to maximize the amount of the stored audio feedback that can be cancelled; The adaptive filter is implemented in an acoustic ...

4. Telephone hybrid - Wikipedia

   en.wikipedia.org/wiki/Telephone_hybrid

   Some incorporate acoustic echo cancellation to allow setups with acoustic paths between loudspeakers carrying phone audio and microphones feeding the phone lines. In studio applications, a hybrid needs particularly good send-to-receive isolation. When too much of the host audio appears at the hybrid's output, there will be a number of defects.

5. The best smart speakers for seniors in 2023 - AOL

   www.aol.com/lifestyle/best-smart-home-speakers...

   Assistant: Alexa | Connectivity: Bluetooth, Wi-Fi | Spatial audio: Yes | Special features: 8-inch touchscreen Imagine a tablet with a beefy speaker grafted onto the back: That's the Echo Show 8 in ...

6. Handsfree - Wikipedia

   en.wikipedia.org/wiki/Handsfree

   Since handsfree devices replace a phone's own speaker and microphone capability in a phone call, they now also must deal with the same issues that standard mobile phones and land phones deal with. The main acoustic issues are echo cancellation and noise suppression, although there are others as well. There have been many ways developed to ...

7. Duplex (telecommunications) - Wikipedia

   en.wikipedia.org/wiki/Duplex_(telecommunications)

   Echo cancellation is a signal-processing operation that subtracts the far-end signal from the microphone signal before it is sent back over the network. Echo cancellation is important technology allowing modems to achieve good full-duplex performance. The V.32, V.34, V.56, and V.90 modem standards require echo cancellation. [12]

8. MSCHF drops an ultrasonic jamming device add-on for your ...

   www.aol.com/news/mschf-drops-ultrasonic-jamming...

   A new device promises to do just that, placing a check on your Amazon Echo's always-on microphones through ultrasonic jamming. MSCHF drops an ultrasonic jamming device add-on for your Amazon Echo ...

9. Parrot SA - Wikipedia

   en.wikipedia.org/wiki/Parrot_SA

   It also developed products related to car telephony: Parrot chipsets (including DSP), copyrighted noise reduction and echo cancelling algorithms, Bluetooth software stack, end-user applications (Bluetooth hands free car kits). The products are sold to consumers through retailers, and are also incorporated into vehicles with the factory ...