Speech Enhancement using an Adaptive Gain Equalizer with Frequency Dependent Parameter Settings
Blekinge Institute of Technology, School of Engineering, Department of Signal Processing2004 (English)Conference paper (Refereed) Published
This paper presents an enhanced 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 time Signal-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 subband based method is extended with frequency dependent parameter settings, equipping the user with further tweaking possibilities. Hence, making the algorithm even more versatile and applicable in different noise situations. The method has proven to be advantageous since it offers low complexity, low delay and low distortion. Also, there is no need for a Voice Activity Detector (VAD). The method is stand-alone and works regardless of speech coding schemes and other surrounding adaptive systems.
Place, publisher, year, edition, pages
Los Angeles: IEEE , 2004.
Speech Enhancement, Adaptive Gain Equalizer, Subband
IdentifiersURN: urn:nbn:se:bth-10017ISI: 000227931904136Local ID: oai:bth.se:forskinfo56776D52CB82AF82C1256EF6002DD441ISBN: 0-7803-8521-7OAI: oai:DiVA.org:bth-10017DiVA: diva2:838024
IEEE 60th Vehicular Technology Conference. VTC2004-Fall