Essays about: "Speech Distortion."

Showing result 11 - 15 of 17 essays containing the words Speech Distortion..

1. 11. BLIND DECONVOLUTION AND ADAPTIVE ALGORITHMS FOR DE-REVERBERATION

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : SURYAVAMSI ATRESYA UPPALURU; [2012]
   Keywords : Adaptive algorithms; CMA; Reverberation; Reverberation index; Speech Distortion.;

   Abstract : De-reverberation of speech signals in a hands-free scenario by adaptive algorithms has been a research topic for several years now. However, it is still a challenging problem because of the nature of common room impulse response (RIR). READ MORE

3. 12. Acoustic Beamforming for Hearing Aids Using Multi Microphone Array by Designing Graphical User Interface

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : S S V SUMANTH KOTTA; BULLI KOTESWARARAO KOMMINENI; [2011]
   Keywords : Acoustic Beamforming; Array signal processing; Beam steering; Direction of arrival estimation; Distortion measurement; Interference cancellation; Microphone arrays; Noise cancellation; Speech enhancement.;

   Abstract : Hearing impaired persons lose their ability to distinguish speech signal in ambient noise. Human hearing system is sensitive to interfering noise. Interfering noise decreases the quality and intelligibility of the speech signal which in turn makes speech communication default. READ MORE

4. 13. Single Channel Speech Enhancement Using Spectral Subtraction Based on Minimum Statistics

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Md. Zameari Islam; G.M. Sabil Sajjad; [2011]
   Keywords : Spectral Subtraction; Minimum Statistics; SNRI; SD; Filter Bank;

   Abstract : Speech is an elementary source of human interaction. The quality and intelligibility of speech signals during communication are generally degraded by the surrounding noise. Corrupted speech signals need therefore to be enhanced to improve quality and intelligibility. READ MORE

5. 14. An evaluation of location and geometric arrangement of microphone array

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Yeonhee Oh; [2010]
   Keywords : microphone array; filter banks; wiener filter beamformer; reverberation; geomatric arrangment of a microphone array;

   Abstract : This thesis addresses the following problem: which type of geometric arrangement and position of microphone arrays can improve the quality of a speech source well in a conference room. A speech source picked up at the microphone array is corrupted by a surrounding noise and reverberation. READ MORE

6. 15. Adaptive Gain Equalizer and Modulation Frequency Domain for Noise Reduction

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Rizwan Ishaq; [2010]
   Keywords : Modulation domain; Adaptive gain equalizer; filter bank; COG; Gain; slow average; fast average;

   Abstract : Speech quality during the communication is generally e ected by the surrounding noise and interference. To improve the quality of speech signals and to reduce the amount of disturbing noise, speech enhancement is one of the emerging and most used branches of signal processing. READ MORE