Essays about: "speaker localization"

Showing result 6 - 10 of 11 essays containing the words speaker localization.

1. 6. Source Localization and Speech Enhancement for Speech Recognition for Real time Environment

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Asim Muhammad; Akbar Ali; [2012]
   Keywords : Beamforming; Localization; Lapped Transform; SRP-PHAT; MVDR; Subspace Supression; PESQ;

   Abstract : Popularity of speech communication is rapidly increasing in various contexts such as conferencing systems, mobile/fixed electronic devices and laptops thus leading to a heightened demand for new services and improved speech quality. Dictaphones used for dictations usually have one microphone. READ MORE

3. 7. Far-Field Wiener Beamforming and Source Localization in Frequency Domain

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Sarath Chandra Uppalapati; Deepak Penugonda; [2012]
   Keywords : Wiener Beamformer; SRP-Phat; SRK-Phat; Reverberation;

   Abstract : In present conference environments where video recording is required, a set of cameras operated by a human being is needed to track the active speaker as he discusses in the conference. In order to automate this procedure, different methods have been developed in acoustic and visual tracking. READ MORE

4. 8. Microphone Array Wiener Beamformer and Speaker Localization With emphasis on WOLA Filter Bank

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Hemanth Yerramsetty; [2012]
   Keywords : RIR; Bemaforming; filterbank; srp-phat;

   Abstract : This thesis describes the design and implementation of a speech enhancement system that uses 4-channel microphone array beam forming and speech enhancement algorithms applied to a speech signal in a multiple source environment. To locate the accurate Direction of Arrival (DOA) from the source, it is necessary to design a suitable microphone array system with more efficient localization algorithm. READ MORE

5. 9. Sound localization for human interaction in real environment

   University essay from Akademin för innovation, design och teknik

   Author : Ralf Strömberg; Stig-Åke Svensson; [2011]
   Keywords : Cross-correlation; ITD; Fourier transform; Sound source localization;

   Abstract : For a robot to succeed at speech recognition, it is advantageous to have a strong and clear signal tointerpret. To facilitate this the robot can steer and aim for the sound source to get a clearer signal, todo this a sound source localization system is required. READ MORE

6. 10. Direction of arrival estimation : A two microphones approach

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Carlos Fernández Scola; María Dolores Bolaños Ortega; [2010]
   Keywords : direction; arrival; estimation; microphones; least; mean; square; fft; angle; matlab;

   Abstract : This thesis presents a solution to the problem of sound source localization. The target lies in getting the direction of a source by capturing its sound field with two omni-directional microphones. The solution allows the source to be either located at a fixed location or it can be in motion within a specified area. READ MORE