Search for dissertations about: "acoustic modelling"

Showing result 1 - 5 of 97 swedish dissertations containing the words acoustic modelling.

  2. 1. Lexical and Acoustic Modelling of Swedish Prosody

    Author : Johan Frid; Fonetik; []
    Keywords : HUMANIORA; HUMANITIES; phonology; Phonetics; stress; dialects; Swedish; word accents; letter-to-sound; text-to-speech; modelling; intonation; prosody; speech technology; Fonetik; fonologi; Scandinavian languages and literature; Nordiska språk språk och litteratur ;

    Abstract : Prosody and intonation are very important ingredients of human speech. In speech technology, text-to-speech (TTS) and automatic speech recognition (ASR) systems must incorporate prosodic models in order to reach acceptable performances. READ MORE

  4. 2. Modelling the acoustic performance of slab tracks

    Author : Jannik Theyssen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; numerical modelling; railway noise; rolling noise; slab track; acoustic optimisation;

    Abstract : Transport is a major contributor to anthropogenic greenhouse gas emissions. Railway transport has a small footprint compared to other means of transport. This is one reason for the construction of new high-speed railway lines world-wide. READ MORE

  5. 3. Numerical Modelling of Fuel Sprays

    Author : Christer Bergström; Strömningsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vibration and acoustic engineering; vacuum technology; hydraulics; Mechanical engineering; Gas turbine.; Temperature fluctuations. Diesel engine; Counter rotating Vortex Pair; CVP; Large Eddy Simulation; Droplet Evaporation; Turbulent flows; LES; Spray; Modelling; Break-up; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; Carbochemistry; petrochemistry; fuels and explosives technology; Petrokemi; bränslen; sprängämnen;

    Abstract : The way the fuel is introduced into the combustion chamber is one of the most important parameters for the power output and the generation of emissions in the combustion of liquid fuels. The interaction beween the turbulent gas flow field and the liquid fuel droplets, the vaporisation of them and the mixing of the gaseous fuel with the ambient air that are vital parameters in the combustion process. READ MORE

  6. 4. Modelling of compact resonators

    Author : Pierre-Luc Regaud; KTH; []
    Keywords : Acoustic; Resonator compact; Fold; End correction; Spiral; Helical; Higher order modes; 2-port; Side-branch; Mode matching; Collocation; Weak formulation; Harmonic;

    Abstract : .... READ MORE

  7. 5. On acoustic modelling of silencers

    Author : R. Glav; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE