User:Antarticjelly
Extended Definition of Adaptive Feedback Cancellation[edit]
Adaptive feedback cancellation is an audio feedback cancellation method commonly used in hearing aids, which uses an adaptive filter to cancel feedback from a microphone. Feedback is defined as a system of inputs and outputs creating a feedback loop. Audio feedback is a positive feedback loop and is responsible for screeching noises heard from speakers and hearing aids.[1]
Description of Adaptive Filter[edit]
The adaptive filter is an algorithm unique to adaptive feedback cancellation and it is used to mitigate audio feedback. Research for the ideal adaptive filter is ongoing but the basic principle is cancelling the total mechanical and audio feedback from a microphone.[2]
Phases in the Adaptive Feedback Cancellation Process[3][edit]
- Understand audio feedback
- Create an algorithm to cancel audio feedback
- Implement that algorithm in a device where a microphone and speaker are connected
References[edit]
- ^
- ^ Staff, Hearing Review. "Understanding Feedback and Digital Feedback Cancellation Strategies - Hearing Review". Retrieved 2020-10-22.
- ^ Kates, James M. (2003), Benesty, Jacob; Huang, Yiteng (eds.), "Adaptive Feedback Cancellation in Hearing Aids", Adaptive Signal Processing: Applications to Real-World Problems, Signals and Communication Technology, Berlin, Heidelberg: Springer, pp. 23–57, doi:10.1007/978-3-662-11028-7_2#:~:text=in%20feedback%20cancellation%20in%20hearing,gain%20in%20the%20hearing%20aid., ISBN 978-3-662-11028-7, retrieved 2020-10-22
{{citation}}: Check|doi=value (help) - ^ Freed, Daniel J. (2008-03). "Adaptive feedback cancellation in hearing aids with clipping in the feedback path". The Journal of the Acoustical Society of America. 123 (3): 1618–1626. doi:10.1121/1.2836767. ISSN 1520-8524. PMID 18345849.
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