Essays about: "cardioid"

Found 2 essays containing the word cardioid.

  1. 1. Integrated Speech Enhancement Technique for Hands-free Mobile Phones

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

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

    Abstract : 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. READ MORE

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

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Sai Kiran Chittajallu; [2013]
    Keywords : Acoustics; PESQ; ELKOS; Spectral Subtraction; WOLA; Reverberation;

    Abstract : 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. READ MORE