Sökning: "wola"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet wola.

  1. 1. Implementation and Evaluation of Spectral Subtraction with Minimum Statistics using WOLA and FFT Modulated Filter Banks

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

    Författare :Peddi Srinivas Rao; Vallabhaneni Sreelatha; [2014]
    Nyckelord :Speech Enhancement; Filter Bank; Spectral Subtraction; Wiener Filtering; PESQ; DFT ; Master of Science Programme in Electrical Engineering with emphasis on Signal Processing Masterprogram i Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : In communication system environment speech signal is corrupted due to presence of additive acoustic noise, so with this distortion the effective communication is degraded in terms of the quality and intelligibility of speech. Now present research is going how effectively acoustic noise can be eliminated without affecting the original speech quality, this tends to be our challenging in this current research thesis work. LÄS MER

  3. 2. MOBILE PHONE ACOUSTICS : PERFORMANCE EVALUATION OF SPECTRAL SUBTRACTION AND ELKO’S ALGORITHM USING SPEECH QUALITY METRICS

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Sai Kiran Chittajallu; [2013]
    Nyckelord :Acoustics; PESQ; ELKOS; Spectral Subtraction; WOLA; Reverberation;

    Sammanfattning : In recent years a great deal of effort has been expended to develop methods that determine the quality of speech through the use of comparative algorithms. These methods are designed to calculate an index value of quality that correlates to a mean opinion score given by human subjects in evaluation sessions. 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. 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

  7. 5. Intelligent Camera Tracking using SRP-based sound Source localization in frequency domain

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Damodar Reddy Naturi; [2012]
    Nyckelord :SRP-Phat; acoustics; camera tracking; GCC Phat;

    Sammanfattning : The Steered Response Power Phase Transform (SRP-PHAT) is one of the most robust methods among sound source localization operating in noisy and reverberant environments. Direction of Arrival (DOA) Estimation has important applications in human computer interfaces such as video conferencing, speech enhancement and speech recognition. LÄS MER