Separation of multiple signals in hearing aids by output decorrelation and time-delay estimation

Autor:	Pascal Bamford, N. Canagarajah
Rok vydání:	2002
Předmět:	Adaptive filter Speech enhancement Background noise Filter design Finite impulse response Computer science Speech recognition Filter (signal processing) Decorrelation Signal
Zdroj:	Bamford, P & Canagarajah, CN 1995, ' Separation of multiple signals in hearing aids by output decorrelation and time-delay estimation ', pp. 7-10 . https://doi.org/10.1109/ASPAA.1995.482900
DOI:	10.1109/aspaa.1995.482900
Popis:	Sensori-neural hearing impaired listeners have difficulty in separating multiple signals or perceiving speech in background noise and hearing aids are widely used to enhance the desired signal. In this paper we present a simple two-input system to separate two signals using output decorrelation where the filter coefficients are adaptively estimated to minimise the correlation of the output signals. In particular we show that an optimal filter can be designed and the convergence behaviour can be greatly improved by using a time-delay estimation technique. The algorithm was implemented to successfully separate two signals and the results are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26146dc536af18b837257003e4a51e56 https://doi.org/10.1109/aspaa.1995.482900 Zobrazit plný text záznamu