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Tellabs, Inc. is a global network technology company that provides networking and communications solutions to both private and governmental agencies. [2] The company offers a range of products and services, including optical transport systems, access systems, managed access solutions, and network management software.
The performance of an echo canceller is measured in echo return loss enhancement (ERLE), [3] [9] which is the amount of additional signal loss applied by the echo canceller. Most echo cancellers are able to apply 18 to 35 dB ERLE. The total signal loss of the echo (ACOM) is the sum of the ERL and ERLE. [9] [10]
Adaptive feedback cancellation originated during the evolution of the hearing aid. The hearing aid became digital, and as such feedback cancellation was needed. In 1980 a directional microphone was introduced in the digital hearing aid, and adaptive feedback cancellation was created to block external noise that the microphone picked up. Today ...
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The “spacing effect” refers to a phenomenon whereby learning, or the creation of a memory, occurs more effectively when information, or exposure to a stimulus, is spaced out.
This page was last edited on 4 April 2014, at 16:49 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
A recent review of alcohol and cancer research by a National Academies of Science, Engineering and Medicine committee published in December is meant to shape U.S. Dietary Guidelines.
Feedback suppressors use three main methods to control feedback, [2] frequency shifting, adaptive filtering and; automatic notch filtering; Frequency shifting is the oldest feedback suppression technique dating back to the 1960s. This technique works by introducing a varying shift in frequency to the system response.