Sökning: "Sound detector"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Sound detector.

  1. 1. Riskreducerande åtgärder för vätgasläckage

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Jacob Kuhs; Oskar Zubac; [2022]
    Nyckelord :Hydrogen; Risk reduction measures; Risk mitigation; Gas leak detection; Leakage sound; Ultrasonic; Ultrasound; Gas leak detector; USGD; UGLD; Fire detection; Flame detector; Flame spectroscopy; Spectrum; Technology and Engineering;

    Sammanfattning : Hydrogen use increase and so does the knowledge about its risks, but not necessarily about how to handle these risks. Limited literature is available about risk mitigation for hydrogen use, the objective of this thesis is to increase this knowledge. LÄS MER

  3. 2. Automatic Virtual Tracking in a Multi-Participant Scenario for a Mobile Device

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Emelie Skoog; Elin Freberg; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The aim of this thesis is to identify a speaker in a video stream by only using the camera of a smartphone. This creates the opportunity for a mobile application to track the speaking participant during a conference call. Conference systems that include this feature use a microphone array to localize sound and who the speaker is. LÄS MER

  4. 3. Compare Accuracy of Alternative Methods for Sound Classification on Environmental Sounds of Similar Characteristics

    Master-uppsats, Stockholms universitet/Statistiska institutionen

    Författare :Olov Rudberg; [2022]
    Nyckelord :Machine Learning; Algorithms; Neural Networks; Computer Vision; Image Recognition; Environmental Sound Classification; Data Augmentation;

    Sammanfattning : Artificial neural networks have in the last decade been a vital tool in image recognition, signal processing and speech recognition. Because of these networks' ability to be highly flexible, they suit a vast amount of different data. This flexible attribute is very sought for within the field of environmental sound classification. LÄS MER

  5. 4. Calibration of a Fast Neutron Time-of-Flight System

    Magister-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Armando Javier Morales Urrutia; [2021]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Future experiments with thermal neutrons at neutron facilities may encounter fast neutrons as sources of background. Understanding fast neutron behavior on an event-by-event basis in a detector is important for these complementary thermal neutron experiments. One way to study fast neutron events is by performing a time-of-flight measurement. LÄS MER

  7. 5. Ljudhändelsedetektor med distribueradeLoRa-anslutna akustiska sensorer

    Kandidat-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Ivan Alrashid; [2021]
    Nyckelord :Sound detector; Sound level; Long Range; Ljuddetektor; TTN; LoRa;

    Sammanfattning : Att detektera ljudnivå ger mycket information i stadsområde såsom bullernivå, antal skottlossningar, antal kollisioner och detekterar plats på en ljudkälla. I detta projekt monteras en ljuddetektor som kommunicera via LoRa Long Range när ljudet överstiger ett tröskelvärde. LÄS MER