Sökning: "mikrofoner jämförelse"

Hittade 4 uppsatser innehållade orden mikrofoner jämförelse.

  1. 1. Empirical Verification of an Acoustic Estimation of a Rocket Engine : A Comparison Between Estimated and Measured Noise of a Rocket Engine

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Elina Arvidsson; [2022]
    Nyckelord :Esrange Space Centre; Flame deflector; Acoustic estimation; Liquid rocket engine; Rocket Factory Augsburg; Jet acoustics; Esrange Space Centre; Flammdeflektor; Akustisk estimering; vätskedriven raketmotor; Rocket Factory Augsburg; strömningsakustik;

    Sammanfattning : The noise of a rocket engine is a complex and complicated phenomenon which has been studied for more than half a century [1]. There are many sources to this noise, but due to its great potential impact to the surrounding structures, including the vehicle itself, it is important to have a model to estimate the acoustic environment the engine produces. LÄS MER

  3. 2. Acoustic source strength determination of turbocharger in an unfavourable acoustic environment

    Master-uppsats, KTH/MWL Marcus Wallenberg Laboratoriet

    Författare :Balaji Vejendla; [2019]
    Nyckelord :;

    Sammanfattning : The aim of the M.Sc thesis work is to specify a measurement method suitable for deter-mining the sound power levels and especially to quantifying the levels at the compressor blade pass frequency of a turbocharger in the new turbo performance rig located at Scania CV AB, Södertälje. LÄS MER

  4. 3. Sound following robot

    Kandidat-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Karl Enoksson; Bohan Zhou; [2017]
    Nyckelord :;

    Sammanfattning : There are many different areas of use for sound localization. This concept is not only used to localize a person that is talking but can also be applied for finding a person in need One method of localizing the position of a sound source is to use several microphones to register the difference of time in which each microphone detects the same sound. LÄS MER

  5. 4. Sound Source Localization and Beamforming for Teleconferencing Solutions

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Angelica Kjellson; [2014]
    Nyckelord :statistical digital signal processing; microphone array signal processing; sound source localization SSL ; beamforming; uniform circular array UCA ; teleconferencing;

    Sammanfattning : In teleconferencing the audio quality is key to conducting successful meetings. The conference room setting imposes various challenges on the speech signal processing, such as noise and interfering signals, reverberation, or participants positioned far from the telephone unit. LÄS MER