Essays about: "SOUND ATTENUATION"

Showing result 1 - 5 of 24 essays containing the words SOUND ATTENUATION.

  1. 1. Sound Source Distance Estimation Using Sound Frequency Attenuation

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Frida Johnsson; Gillis Oldfeldt; [2023]
    Keywords : Technology and Engineering;

    Abstract : Estimating the distance between a sound source and receiver is an important problem. This thesis explores the possibility of estimating distance from a sound source using the attenuations regarding different frequencies over a distance. This method can be useful in cases where currently existing distance approxima- tion methods are not an option. READ MORE

  3. 2. An investigation into outside factors effect on ANC headphone performance

    University essay from Jönköping University/JTH, Avdelningen för datavetenskap

    Author : Andreas Grahn; Eddie Lindgren; [2022]
    Keywords : ANC; ANC headphones; experiments; performance; reliability; quality testing;

    Abstract : In the current studied literature there is a lack of data and documentation on how outside factors affect the performance of ANC headphones. The purpose of this thesis is to investigate how these factors affect ANC headphone performance. The investigation into these factors was done by gathering quantitative data with experiments. READ MORE

  4. 3. Compensating for ultrasound frequency attenuation in tissue when determining tissue effective particle size

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Karolina Sandell; [2021]
    Keywords : Technology and Engineering;

    Abstract : Giant cell arteritis is a disease the affects the arteries, for example the temporal artery. When affecting the temporal artery, it can cause serious consequences such as blindness and stroke. The existing methods for diagnosing the disease are invasive, time consuming and costly. READ MORE

  5. 4. Evaluation of Discrete-Time Wideband Receivers for NB-IoT

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Magnus Wasting; [2021]
    Keywords : Discrete; time; filter; NB-IoT; Charge; Sharing; CMOS; Technology and Engineering;

    Abstract : A receiver that covers several RF bands requires multiple front-end filters which increases the cost in terms of components and/or board/silicon area. Front-end filters assist a receiver to withstand interference at multiples of its down-conversion frequency. READ MORE

  6. 5. Mapping Noise Pollution with Open-source GIS

    University essay from Högskolan i Gävle/Samhällsbyggnad

    Author : Faustina Lina Yeboah; [2021]
    Keywords : Road traffic noise; CNOSSOS-EU; noise exposure; Lday; Levening; Lnight; Lden;

    Abstract : In a time when urban areas continue to expand, environmental noise pollution especially from road traffic remains a big challenge. This study was aimed at using open-source GIS tools to predict road traffic noise pollution using the mid-sized city of Gävle as a case study. READ MORE