Essays about: "Wiener Beamformer"
Showing result 11 - 15 of 15 essays containing the words Wiener Beamformer.
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11. Speech enhancement methods in hands-free communication with emphasis on Optimal SNIR Beamformer
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : A basic speech enhancement can be achieved by the suppression of background noise and reverberation from the clean speech. The point to be noted is to achieve it with a low computational complexity. The aim is to estimate signal arriving optimally from the desired direction in the presence of reverberant-noisy speech signal. READ MORE
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12. Far-Field Wiener Beamforming and Source Localization in Frequency Domain
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : 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
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13. Keystroke Resilience in Laptop Acoustics Using Wiener Beamformer and Spectral Subtraction
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : Nowadays, Laptops and Personal computers are increasingly being used to capture audio in various communication scenarios such as video conferencing, recordings of meetings, VOIP communications and lectures for archival purposes and audio/video instant messaging. Many of these scenarios often face unique problem of additive noise that of the user simultaneously typing on the keyboard. READ MORE
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14. Microphone Array Wiener Beamformer and Speaker Localization With emphasis on WOLA Filter Bank
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : 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
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15. An evaluation of location and geometric arrangement of microphone array
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : 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