Sökning: "Linear Microphone array"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Linear Microphone array.

1. 1. Low Complexity Beamformer structures for application in Hearing Aids

   Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

   Författare :Eleni Koutrouli; [2018]
   Nyckelord :hearing aids; beamformers; MVDR algorithm; microphone arrays;

   Sammanfattning : Background noise is particularly damaging to speech intelligibility for people with hearing loss. The problem of reducing noise in hearing aids is one of great importance and great difficulty. Over the years, many solutions and different algorithms have been implemented in order to provide the optimal solution to the problem. LÄS MER

3. 2. Adaptive Sub band GSC Beam forming using Linear Microphone-Array for Noise Reduction/Speech Enhancement.

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Mamun Ahmed; [2012]
   Nyckelord :Generalized Side lobe Canceller GSC ; Blocking matrix; Microphone array; Sub band; SNR. ;

   Sammanfattning : This project presents the description, design and the implementation of a 4-channel microphone array that is an adaptive sub-band generalized side lobe canceller (GSC) beam former uses for video conferencing, hands-free telephony etc, in a noisy environment for speech enhancement as well as noise suppression. The side lobe canceller evaluated with both Least Mean Square (LMS) and Normalized Least Mean Square (NLMS) adaptation. LÄS MER

4. 3. Microphone Array Wiener Beamforming with modeling of SRP- PHAT for Speaker Localization

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :SRISESHUKUMAR BASAVA; [2012]
   Nyckelord :MIcrophone array; Wiener beamforming; Source localization;

   Sammanfattning : The use of microphone arrays to acquire and recognize speech in meetings (conference) poses several problems for speech processing as there exist many speakers within a small space, typically around a table. The necessity to design a suitable microphone array system with minimum noise and more efficient localization algorithms is drawing attention of researchers to work on it. LÄS MER

5. 4. Adaptive Speech enhancement system using Linear Microphone-array for noise Reduction

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Jeevan Reddy Yarragudi; [2012]
   Nyckelord :Speech enhancement; Beam former; Generalized side lobe canceler; LMS algorithm ;

   Sammanfattning : A major part of the interaction between humans takes place via speech communication. It is very difficult to understand speech signals in presence of background noise for the normal listeners and hearing impaired persons. The human speech and hearing organ is inherently sensitive to interfering noise. LÄS MER

7. 5. Multi Channel Sub Band Wiener Beamformer

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Rajesh Amerineni; [2012]
   Nyckelord :Reverberation; Linear Microphone array; WOLA Filter Bank; Wiener Beamformer; SRP-PHAT;

   Sammanfattning : With the recent advance in microphone array speech processing, achieving robustness of speaker localization becomes most significant aspect. At the same time considerable research growth is performed in developing the multiple microphone sensors equipped rooms are developed also called as smart rooms for real time applications. LÄS MER