Essays about: "loudspeakers"

Showing result 21 - 25 of 26 essays containing the word loudspeakers.

  1. 21. Digital compensation of distortion in audio systems

    University essay from Institutionen för systemteknik

    Author : Fredrik Bengtsson; Rikard Berglund; [2010]
    Keywords : Distortion; Digital Compensation; Signal Processing; Digital Filters; Audio Systems; Amplifiers; Modelling; Audio Compressor; Audio Limiter;

    Abstract : The advancements of computational power in low cost FPGAs are giving the opportunityto implement real-time compensation of loudspeakers and audio systems. The need for expensive commercial audio systems is reduced when the fidelity ofmuch cheaper audio systems easily can be improved by real-time compensation. READ MORE

  3. 22. Nonlinear Acoustic Echo Cancellation for Mobile Phones: A Practical Approach

    University essay from Institutionen för datavetenskap, fysik och matematik, DFM

    Author : Anders Fhager; Jemal Mohammed Hussien; [2010]
    Keywords : nonlinear echo cancellation; mobile phones; speech processing; acoustic echo; RES; volterra; Hammerstien;

    Abstract : Acoustic echo cancelation (AEC) composes a fundamental property of speech processing to enable a pleasant telecommunication conversation. Without this property of the telephone the communicator would hear an annoying echo of his own voice along with the speech from the other communicator. READ MORE

  4. 23. Speaker Park : om ljudsättning av utemiljöer

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Ulf Risberg; [2008]
    Keywords : ljud; landskapsarkitektur; ljudpark; ljudlandskap; ljudkonst; ljudmiljöer; interaktion; Frodeparken; Uppsala; ljudinstallation;

    Abstract : This project will search for the sound in the contemporary landscape architecture, an attempt to combine music and land­scaping. In a first stage, I have searched for outdoor environments where loudspeakers are used, and sites with a concious sound design. READ MORE

  5. 24. Acoustic Analysis of Loudspeakers Cavity Including Viscothermal Effects

    University essay from Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Byggnadsmekanik

    Author : Boel Hökmark; [2007]
    Keywords : Technology and Engineering;

    Abstract : The geometry of a loud speaker cavity often gets a complicated geometry with sharp corners and narrow ducts. For this kind of shape the internal energy losses caused by viscosity and thermal conduction play an important role in the acoustic behavior. Today there is no method that sufficiently predict these effects. READ MORE

  6. 25. Digital feedback control of the frequency response of a conventional loudspeaker

    University essay from KTH/Reglerteknik

    Author : Johan Aglert; [2004]
    Keywords : ;

    Abstract : Automatic control design and Hi-Fi loudspeakers are two areas that not very often are combined. In 1976 Karl Erik Ståhl performed a master thesis project at KTH where he, with analog circuits, made a positive feedback loop to manipulate the mechanical parameters of a loudspeaker. READ MORE