Hlukoměr pro embedded systémy
| Autor: | Stejskal, Tomáš |
|---|---|
| Jazyk: | čeština |
| Rok vydání: | 2015 |
| Předmět: |
časové váhování
time weighting akustický tlak acoustic pressure hlukoměr hladina hluku. noise measurement mikrokontrolér ST® STM32F4 Discovery ARM Cortex® -M4F microphone preamplifier IIR Lattice sound level meter mikrofonní předzesilovač sound level meter sensor microcontroller DSP měření hluku ADC převodník ADC sound level hlukoměrové čidlo |
| Druh dokumentu: | masterThesis |
| Popis: | The aim of this work is the design and implementation of a sound level meter for emdedded systems. It is designed sound level meter sensor. This sensor includes a microphone, microphone preamplifier and ADC. This sensor is connected to a development kit STM32F4 Discovery, where sound is processed. It is processed filtration, time weighting, calculation of sound leve and loudness weighting. The sound level is then sent via the serial communication USART. This thesis includes a theoretical analysis of noise and its human perceptions. It also describes the development platform used. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
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