Essays about: "acoustic frequency"

Showing result 21 - 25 of 128 essays containing the words acoustic frequency.

  1. 21. Piezoelectric Guitar Tuner

    University essay from KTH/Mekatronik

    Author : Albin Boestad; Fabian Rudberg; [2021]
    Keywords : Mechatronics Tuner Guitar Piezo Arduino; Mekatronik; Stämmare; Guitar; Piezo Arduino;

    Abstract : This bachelor thesis in Mechatronics account for the process of constructing an automatic guitar tuner by means of a piezo-electric sensor, a stepper motor and Arduinobased control. The E4 - string on an acoustic guitar was used as a proxy for tuning any other possible guitar string. READ MORE

  3. 22. Capacitive Micromachined Ultrasonic Transducers for Underwater Applications

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Patrick Johansson; [2021]
    Keywords : CMUT; capacitive; micromachined; ultrasonic; transducer; model;

    Abstract : Capacitive micromachined ultrasonic transducers (CMUT:s) are often used in medical imaging and they show some promise as underwater transducers. This thesis collates the available information about how CMUT:s operate, their strengths and weaknesses and investigates their efficiency as an underwater transducer. READ MORE

  4. 23. Attenuation of bending waves in cross-laminated timber panels by using constrained damping layer

    University essay from Luleå tekniska universitet/Träteknik

    Author : Konrad Boeske; [2021]
    Keywords : Wood technology; damping; CLT; acoustic; low frequencies; AkuTimber;

    Abstract : Multi-storey wooden buildings become more and more popular. As the new housing solutions are more accessible, acoustical inconveniences of wooden buildings become actual as never before. Wood, thanks to its high stiffness and low mass, allows to erect buildings at impressive pace, albeit cannot damp low frequency noises efficiently. READ MORE

  5. 24. A Numerical Approach for Wind Tunnel Noise Control

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Hampus Dall; Robert Palm; [2021]
    Keywords : Technical Acoustics; ANC; Active Noise Control; Superposition; Wind Tunnel; Wingsuit; Indoor Wingsuit; Higher Order Modal Acoustic Field Beyond Plane Wave Region; Numerical Acoustic Simulations; Teknisk Akustik; Aktiv Brusreducering; Superposition; Vindtunnel; Flygning med ekorrdräkt inomhus; Högre ordningens akustisk modanalys bortom planvågsteori; Numeriska akustiska simuleringar;

    Abstract : A wind tunnel from the 1950s located in Bromma, Stockholm, once used for military research is today used for commercial activities. Today the tunnel is used for indoor wingsuit flight and the facility has an interest in reducing the overall noise generated by the tunnel. Acoustic measurements indicate noise problems in the 50 Hz range. READ MORE

  6. 25. Speaker Recognition using Biology-Inspired Feature Extraction

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

    Author : Edvin Andersson; [2021]
    Keywords : Artificial Intelligence; AI; Machine Learning; Speaker Recognition; Technology and Engineering;

    Abstract : Distinguishing between people's voices is something the human brain does naturally, using only frequencies picked up by the inner ear. The field of speaker recognition is concerned with making machines do the same thing using digitally sampled speech and data processing. READ MORE