Sökning: "Cepstral analysis"

Hittade 4 avhandlingar innehållade orden Cepstral analysis.

  1. 1. Spectral Estimation by Geometric, Topological and Optimization Methods

    Författare :Per Enqvist; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spectral Estimation; ARMA models; Covariance analysis; Cepstral analysis; Markov parameters; Global analysis; Convex Optimization; Continuation methods; Entropy maximization; Optimization; systems theory; Optimeringslära; systemteori;

    Sammanfattning : .... LÄS MER

  3. 2. First-principle data-driven models for assessment of motor disorders in Parkinson’s disease

    Författare :Taha Khan; Peter Funk; Mark Dougherty; Jerker Westin; Shahina Begum; Gunnar Klein; Mälardalens högskola; []
    Nyckelord :Computer Science; datavetenskap; Complex Systems – Microdata Analysis;

    Sammanfattning : Parkinson’s disease (PD) is an increasing neurological disorder in an aging society. The motor and non-motor symptoms of PD advance with the disease progression and occur in varying frequency and duration. In order to affirm the full extent of a patient’s condition, repeated assessments are necessary to adjust medical prescription. LÄS MER

  4. 3. Analyses of voice and glottographic signals in singing and speech

    Författare :Andreas Selamtzis; Sten Ternström; Paavo Alku; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; voice ; singing ; electroglottography ; clustering ; dysphonia ; sample entropy ; ; Tal- och musikkommunikation; Speech and Music Communication;

    Sammanfattning : Recent advances in machine learning and time series analysis techniques have brought new perspectives to a great number of scientific fields. This thesis contributes applications of such techniques to voice analysis, in an attempt to extract information on the vibration of the vocal folds as such, as well as on the radiated acoustic signal. LÄS MER

  5. 4. On Robust LPC-spectrum Coding and Vector Quantization

    Författare :Roar Hagen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robustness against channel noise; LPC-spectrum coding; vector quantization; speech coding; linear mapping of a block code;

    Sammanfattning : Digital speech coding is concerned with representing a discrete-time speech signal with as few bits per second as possible without introducing annoying artifacts in the coded speech. Many modern speech coders are based on Linear Predictive Coding (LPC) which employ a source-filter model for speech production. LÄS MER