Sökning: "microphone"

Visar resultat 21 - 25 av 189 uppsatser innehållade ordet microphone.

  1. 21. Sensor implementation : Tillämpat i ett inbyggt system för att öka funktionaliteten i gruvmiljöer

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Christoffer Nilsson; [2021]
    Nyckelord :Elektronik; inbyggda system;

    Sammanfattning : This thesis was made to test an implementation of different sensor on Widefinds embedded  positioning system to increase its functionality. The underlying idea was that measurement sof physical quantities pared up with the positioning in mining operations could achieve this increase. LÄS MER

  3. 22. Produktutveckling för framtidens arbetsplatser

    Master-uppsats, Lunds universitet/Innovation

    Författare :Philip Ohlin; [2021]
    Nyckelord :Produktutveckling; konceptgenerering; CAD; distansarbete; arbetsenhet; Technology and Engineering;

    Sammanfattning : Companies have implemented major changes due to the recommendations of remote work introduced by the Swedish Public Health Agency as a result of the Covid-19 pandemic. Remote work has rapidly increased, and the forecast is that this flexible working method will remain. LÄS MER

  4. 23. Online Secondary Path Modelling for Spatial Active Noise Control with Arbitrarily Spaced Arrays

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Jesper Brunnström; [2021]
    Nyckelord :Active noise control; Secondary path modelling; Spatial; Adaptive filter; Multichannel; Least mean squares; Aktiv brusreducering; Sekundärvägsmodellering; Spatial; Adaptiv Filtrering; Multikanal; Minsta kvadratmetoden;

    Sammanfattning : In this work we explore online secondary path modelling (SPM) in the context of spatial active noise control (ANC). Specifically, we are interested in the reduction of broadband noise over a three-dimensional region, without restrictions on microphone and loudspeaker array placement. LÄS MER

  5. 24. Jet Printing Quality ImprovementThrough Anomaly Detection UsingMachine Learning

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

    Författare :Henrik Lind; Jacob Janssen; [2021]
    Nyckelord :Jet Printing; Autoencoder; Anomaly Detection; Sound; Acoustic; Machine Learning; Solder Paste; Piezoelectric Current; Self Sensing;

    Sammanfattning : This case study examined emitted sound and actuated piezoelectric current in a solderpaste jet printing machine to conclude whether quality degradation could be detected with an autoencoder machine learning model. An autoencoder was used to detect anomalies in non-realtime that were defined asa diameter drift with an averaging window from a target diameter. LÄS MER

  7. 25. Pitcher : An automatic guitar tuner

    Kandidat-uppsats, KTH/Mekatronik

    Författare :Hannes Andersson; John Sjöberg; [2021]
    Nyckelord :Arduino; mechatronics; autocorrelation; guitar tuner; pitch detection algorithm; Arduino; mekatronik; autokorrelation; gitarrstämmare; tonavläsning;

    Sammanfattning : Pitcher is a prototype which makes it easier for inexperienced guitar players to tune their guitars without any prior knowledge required. This thesis will explore how the construction varies between the usage of DC and a stepper motor, how reliable the tuner is and how long it takes to tune the guitar. LÄS MER