Sökning: "Teknisk Akustik"

Visar resultat 1 - 5 av 80 uppsatser innehållade orden Teknisk Akustik.

  1. 1. Epidemiological survey of moderators moderators for railway noise annoyance

    Master-uppsats, KTH/Teknisk akustik

    Författare :Tagiadin Assenai; [2023]
    Nyckelord :Akustik; psykoakusti; bullerstörningar; järnväg; ljudstörningar;

    Sammanfattning : The disturbance caused by railway noise has been investigated in this paper. A total of 127residents living near the Västra Stambanan were interviewed, and the noise levels from NordiskaBeräkningsmodellen were compared with the perceived disturbance. The results of the studyindicate a correlation between indoor noise levels and disturbance. LÄS MER

  3. 2. Implementation and Comparative Analysis of Head-Related and Binaural Room Impulse Response in a Mid-Side Decomposition

    Master-uppsats, KTH/Teknisk akustik

    Författare :Jonathan Ling; [2023]
    Nyckelord :Master’s Thesis; Spatial audio; Sound Externalisation; Binaural recording; Headphones; Mid-Side Processing; Masteruppsats; Rumsligt Ljud; Ljud-externalisation; Binaural Inspelning; Hörlurar; Mid-Sid processering;

    Sammanfattning : This thesis aimed to clarify the essential factors involved in externalising audio over headphones. Extensive research was conducted, examining binaural cues and the latest advancements in the field. A novel approach was proposed, which applied HRIRs and BRIRs on a Mid-Side decomposition. LÄS MER

  4. 3. The effect of furniture on room acoustic parameters and its dependence on the sound absorbing properties of the ceiling

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk akustik; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Huong Nguyen; [2023]
    Nyckelord :Room acoustics; furniture; Sabine s formula; SEA model; sound absorption; sound scattering; reverberation time; speech clarity; sound strength; Technology and Engineering;

    Sammanfattning : In ordinary public rooms such as classrooms and offices, the base line of acoustical treatment is an absorbent suspended ceiling. Due to the non-uniform distribution of the absorptive ceiling material, the scattering as well as the absorption properties of furniture will have a significant effect on room acoustic parameters such as reverberation time, speech clarity and sound strength. LÄS MER

  5. 4. Steering system modal analysis

    Master-uppsats, KTH/Teknisk akustik

    Författare :Silvia Milani; [2023]
    Nyckelord :Ride comfort; Steering wheel vibrations; Resonance excitations; Åkkomfort; Rattvibrationer; Resonansexcitationer;

    Sammanfattning : The vehicle manufacturing sector is constantly evolving, and corporations are fully aware of increased consumer expectations for both driver and passenger´s comfort. SCANIA CV AB, as one of the largest Swedish manufacturers of commercial vehicles, has put an emphasis on this area. LÄS MER

  7. 5. Prediction of Reverberation Time in Office Spaces by Investigation of the Scattering Factor in Odeon

    Master-uppsats, KTH/Teknisk akustik

    Författare :Viktor Söderlund; [2023]
    Nyckelord :Scattering Factor; Reverberation Time; Odeon; Sabine; Arau-Puchades; Spridningsfaktor; Efterklangstid; Odeon; Sabine; Arau-Puchades;

    Sammanfattning : Accurate estimations of the reverberation time of furnished office spacesis essential as an acoustic consultant. A time efficient way to predict thefurniture’s effect is to investigate it by software modelling. The room acousticsoftware Odeon is suitable for doing this. LÄS MER