Essays about: "mikrofoner"

Showing result 1 - 5 of 27 essays containing the word mikrofoner.

1. 1. Approach for frequency response-calibration for microphone arrays

   University essay from KTH/Hälsoinformatik och logistik

   Author : Jacob Drotz; [2023]
   Keywords : microphone array; frequency response; calibration; sine sweep; inverse filter; digital signal processing DSP ; convolution; Fast Fourier Transform FFT ; Discrete Fourier Transform DFT ; acoustic measurements; audio engineering; mikrofonarray; frekvenssvar; kalibrering; sinussvep; inverterat filter; digital signalbehandling; faltning; Fast Fourier Transform FFT ; Discrete Fourier Transform DFT ; akustiska mätningar; ljudteknik;

   Abstract : Matched frequency responses are a fundamental starting point for a variety ofimplementations for microphone arrays. In this report, two methods for frequencyresponse-calibration of a pre-assembled microphone array are presented andevaluated. READ MORE

3. 2. Design of auxiliary communication for audio between computers and DSPs : Programming and optimization of computational resources

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Eriksson Janze Oscar; [2023]
   Keywords : DSP; Audio-communication; Auxiliary; AUX; phone connector; USB-audio; STM32; ADC; AD-converter; filterbank; hearing aid; signalprocessor; ljudkommunikation; ljudkabel; AUX; USB-ljud; STM32; hjälpmedel; ADC; analog-till-digital-omvandlare;

   Abstract : This thesis report is about designing a prototype and establishing audio communication between a computer and Digital Signal Processor (DSP) using two preamp circuits using both auxiliary and USB connection. The paper gives the reader an overview on how audio is transmitted from a computer, through the system and to the desired output. READ MORE

4. 3. Live captioning and translation application for Android

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Joel Hansson; [2023]
   Keywords : ;

   Abstract : Captioning has long been used in media to help D/deaf and hard-of-hearing persons. Captioning however is difficult and time-consuming manual work. With the rapid evolution of automated speech recognition (ASR) systems, live captioning of everyday speech will soon be a practical reality. READ MORE

5. 4. HRTF-Based Sound Field Interpolation in the Presence of a Human Head

   University essay from Lunds universitet/Matematisk statistik

   Author : Anton Björkman; [2023]
   Keywords : Sound field interpolation; HRTF; head-related transfer function; kernel ridge regression; in-ear sound estimate; Helmholtz equation; Mathematics and Statistics;

   Abstract : There are different ways of evaluating the sound pressure in a sound field. Doing so is an essential part of several applications, such as active sound control and voice analysis. READ MORE

6. 5. Empirical Verification of an Acoustic Estimation of a Rocket Engine : A Comparison Between Estimated and Measured Noise of a Rocket Engine

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Elina Arvidsson; [2022]
   Keywords : Esrange Space Centre; Flame deflector; Acoustic estimation; Liquid rocket engine; Rocket Factory Augsburg; Jet acoustics; Esrange Space Centre; Flammdeflektor; Akustisk estimering; vätskedriven raketmotor; Rocket Factory Augsburg; strömningsakustik;

   Abstract : The noise of a rocket engine is a complex and complicated phenomenon which has been studied for more than half a century [1]. There are many sources to this noise, but due to its great potential impact to the surrounding structures, including the vehicle itself, it is important to have a model to estimate the acoustic environment the engine produces. READ MORE