Sökning: "excitation coding"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden excitation coding.

  1. 1. Quantization of speech parameters : some studies in glottal pulse and spectrum coding

    Författare :Jan Skoglund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; glottal codebook; glottal source modeling; spectrum coding; vector quantization; speech coding; memory vector quantization; excitation coding;

    Sammanfattning : .... LÄS MER

  3. 2. On dynamic bit allocation in CELP speech coding

    Författare :Johan Sjöberg; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; excitation coding; dynamic bit allocation; long term predivtion; speech coding; code excited linear prediction; vector quantization;

    Sammanfattning : .... LÄS MER

  4. 3. Model Based Speech Enhancement and Coding

    Författare :David Yuheng Zhao; Bastiaan Kleijn; Peter Kabal; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; statistical model; Gaussian mixture mdel GMM ; hidden Markov model HMM ; moise reduction; Telecommunication; Telekommunikation;

    Sammanfattning : In mobile speech communication, adverse conditions, such as noisy acoustic environments and unreliable network connections, may severely degrade the intelligibility and natural- ness of the received speech quality, and increase the listening effort. This thesis focuses on countermeasures based on statistical signal processing techniques. LÄS MER

  5. 4. From Modeling to Perception - Topics in Speech Coding

    Författare :Jan Skoglund; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Transmission and storage of speech require an efficient representation of the speech signal. The conversion of the acoustic speech waveform into a suitable digital representation is called speech coding. This thesis consists of six papers contributing to different research areas in speech coding. LÄS MER

  7. 5. Concepts and biomedical applications of excitation-modulated transient state monitoring of fluorescence emitters

    Författare :Baris Demirbay; Jerker Widengren; Yves Mely; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik;

    Sammanfattning : Fluorescence methods have developed very strongly in the last decade, allowing single- molecule detection sensitivity, high specificity, high time- and spatial resolution, as well as high readout speeds. Together, this makes fluorescencea very central readout modality for biomolecular and cellular studies. LÄS MER