Sökning: "audio quality"

Visar resultat 1 - 5 av 80 avhandlingar innehållade orden audio quality.

  1. 1. On Enhancement and Quality Assessment of Audio and Video in Communication Systems

    Författare :Andreas Rossholm; Blekinge Tekniska Högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QoE; video quality assessment; video quality metric; multi-linear regression; artificial neural network; support vector machine; quality predictor; machine learning; temporal scaling; spatial scaling; video compression; deblocking filter; noise cancelling; synchronization; audio delay; video delay; GSM interference signal; noise cancellation; notch filtering;

    Sammanfattning : The use of audio and video communication has increased exponentially over the last decade and has gone from speech over GSM to HD resolution video conference between continents on mobile devices. As the use becomes more widespread the interest in delivering high quality media increases even on devices with limited resources. LÄS MER

  3. 2. Quality aspects of audio communication

    Författare :Ian Marsh; RISE; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The Internet is increasingly being used to carry real-time voice traffic. Users of real-time voice services are sensitive to variable audio quality. The quality of packet audio is largely determined by the mouth-to-ear delay and the packet loss. LÄS MER

  4. 3. Quality aspects of audio communication

    Författare :Ian Marsh; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 4. Oral care quality in intensive care units and short-term care units : Nursing staff and older people's perspectives

    Författare :Maria Andersson; Bodil Wilde-Larsson; Mona Persenius Wentzel; Karin Josefsson; Karlstads universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oral care; quality of care; intensive care; short-term care; older people’s perceptions; nursing staff’s perceptions; person-related conditions; Nursing Science; Omvårdnad;

    Sammanfattning : The overall aim of this thesis was to investigate oral care and its quality through the perspectives of nursing staff in intensive care units and short-term care units and from the perspectives of older people in short-term care units. Methods: The mix-method study (I) had a concurrent embedded design and was cross-sectional. LÄS MER

  7. 5. Causal MMSE Filters for Personal Audio : A Polynomial Matrix Approach

    Författare :Simon Widmark; Mikael Sternad; Anders Ahlén; Lars-Johan Brännmark; Fredrik Gustafsson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Personal Audio; Audio Pre-compensators; Causal Filters; Elektroteknik med inriktning mot reglerteknik; Electrical Engineering with specialization in Automatic Control;

    Sammanfattning : This thesis is devoted to the study of synthesis of causal filters for generating personal sound zones. Personal sound zones, personal audio or personal sound is the theory and practice of steering sound in such a way that it is amplified in one region and suppressed in another. LÄS MER