Real-Time Implementation of an Adaptive Gain Equalizer for Speech Enhancement Purposes

Document type: Conference Papers
Peer reviewed: Yes
Full text:
Author(s): Nils Westerlund, Mattias Dahl, Ingvar Claesson
Title: Real-Time Implementation of an Adaptive Gain Equalizer for Speech Enhancement Purposes
Conference name: ICECS-03
Year: 2003
City: Singapore
Organization: Blekinge Institute of Technology
Department: Department of Telecommunications and Signal Processing (Institutionen för telekommunikation och signalbehandling)
Department of Telecommunications and Signal Processing S-372 25 Ronneby
+46 455 38 50 00
Authors e-mail: nwe@bth.se
Language: English
Abstract: This paper presents a real time low-complexity implementation of a noise reduction method for speech communication where the input signal is divided into a number of subbands that are individually weighted in time domain according to the short timeS ignal-to-Noise Ratio estimate (SNR) in each subband at every time instant. Instead of focusing on suppression the noise, the method is focusing on speech enhancement.
The method has proven to be advantageous when implemented in real time since it offers low complexity, low delay and low distortion.
Subject: Signal Processing\Speech Enhancement
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