Sökning: "three microphones"

Visar resultat 6 - 10 av 17 uppsatser innehållade orden three microphones.

  1. 6. Low Complexity Beamformer structures for application in Hearing Aids

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Eleni Koutrouli; [2018]
    Nyckelord :hearing aids; beamformers; MVDR algorithm; microphone arrays;

    Sammanfattning : Background noise is particularly damaging to speech intelligibility for people with hearing loss. The problem of reducing noise in hearing aids is one of great importance and great difficulty. Over the years, many solutions and different algorithms have been implemented in order to provide the optimal solution to the problem. LÄS MER

  3. 7. Absorption properties of green sound barriers

    Master-uppsats, KTH/MWL Marcus Wallenberg Laboratoriet

    Författare :Sherif Fouda; [2018]
    Nyckelord :Impedance tube; Sound absorption measurement; transfer function; three microphones; Sound barrier; ISO 10534-2; ASTM E2611-09.;

    Sammanfattning : This thesis was conducted on behalf of Butong AB, who wanted to test and develop an environmental friendly, so called green sound barrier, which combines both art and science.Different configurations of the product were proposed by the company with various filling materials, as it was predicted that the filling materials would be the main sound absorbent among all parts of the structure. LÄS MER

  4. 8. Improving Spatial Sound Capturing on Mobile Devices Through Fusion of Inertial Measurement Data

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Pouya Ashraf; [2018]
    Nyckelord :;

    Sammanfattning : Through the use of sensor arrays it is possible to extract spatial information about signals present in the environment. For instance position, velocity, distance, etc. LÄS MER

  5. 9. A self-calibrating system for finger tracking using sound waves

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Linus Hammarlund; [2017]
    Nyckelord :cfrc; gcc-phat; srp-phat; self-calibration; toda; toa; Technology and Engineering; Mathematics and Statistics;

    Sammanfattning : In this thesis a system for tracking the fingers of a user using sound waves is developed. The proposed solution is to attach a small speaker to each finger and then have a number of microphones placed ad hoc around a computer monitor listening to the speakers. LÄS MER

  7. 10. Passive gesture recognition on unmodified smartphones using Wi-Fi RSSI

    Master-uppsats, KTH/Robotik, perception och lärande, RPL

    Författare :Mohamed Abdulaziz Ali Haseeb; [2017]
    Nyckelord :Wi-Fi; RSSI; gesture recognition; RNN; LSTM; neural network; deep learning;

    Sammanfattning : The smartphone is becoming a common device carried by hundreds of millions of individual humans worldwide, and is used to accomplish a multitude of different tasks like basic communication, internet browsing, online shopping and fitness tracking. Limited by its small size and tight energy storage, the human-smartphone interface is largely bound to the smartphones small screens and simple keypads. LÄS MER