Sökning: "Speech Communication and Beamforming"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Speech Communication and Beamforming.

  1. 1. Beamforming and Blind Signal Separation for Far-field Voice Capture using a Microphone Array

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Luke Postema; Johan Davidsson; [2019]
    Nyckelord :Beamforming; Microphone array; Minimum variance distortionless response; delay-and-sum; direction of arrival; blind signal separation; Technology and Engineering;

    Sammanfattning : With the evolving technology of mobile electronics and other forms of communication methods, an increasing demand of speech intelligibility is introduced. In a conference room for example, multiple microphones are placed directly in front of the speaker in order to pick up clean speech. However, several challenges still exist. LÄS MER

  3. 2. Integrated Speech Enhancement Technique for Hands-free Mobile Phones

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :ANEESH KALUVA; [2013]
    Nyckelord :Beamformer; Speech enhancement; Hands-free communication; Spectral subtraction; anechoic; Noise suppression;

    Sammanfattning : This thesis investigates the systems for hands-free mobile communication. In hands-free communication, there are various kinds of disturbances in the microphone reception due to the distance between the source and the receiver. The disturbances are mainly background noise and reverberation. LÄS MER

  4. 3. Speech Enhancement in Hands-Free Device (Hearing Aid) with emphasis on Elko's Beamformer

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :TELAGAREDDI S N U V RAMESH; [2012]
    Nyckelord :Speech Enhancement; Speech intelligibility; Speech Communication and Beamforming ;

    Sammanfattning : In general, an uncontrolled environment may contain degradation components like background noise, speech from other speakers etc. along with required speech components. It is very tough to concentrate only on speech signals in presence of background noise for normal listeners and hearing impaired persons. LÄS MER

  5. 4. Microphone Array Wiener Beamforming with emphasis on Reverberation

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Vamsynagh Pedamallu; [2012]
    Nyckelord :reverberation; wiener; beamforming; PESQ; SRP-PHAT;

    Sammanfattning : Effective speech communication using microphone array is getting significant research in speech acquisition methods such as speaker localization, noise reduction and tracking. To locate the accurate Direction of Arrival (DOA) from the source, it is necessary to design a suitable microphone array system with noise reduction capability as well as efficiency in speaker localization. LÄS MER

  7. 5. Acoustic Fan Noise Cancellation in a Laptop Microphone System

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Anil Chokkarapu; [2012]
    Nyckelord :Wiener Beamformer; Spectral Subtraction; Filter Bank; Source Localization;

    Sammanfattning : Speech communication involving audio conferencing, video conferencing, teleconferencing via laptops became greatly influenced in office environments i.e. between employer and employee, and also influenced in personal life meetings between friends or in-between parents and children. LÄS MER