Sustav za reprodukciju zvuka na NXP LPC2368 procesoru

undergraduate thesis

• Title (english): Audio reproduction system on NXP LPC2368 processor
• Author: Željka Zjalić
• Mentor: Hrvoje Mlinarić (mentor)
• Committee member: Hrvoje Mlinarić (predsjednik povjerenstva)
• Committee member: Josip Knezović (član povjerenstva)
• Committee member: Daniel Hofman (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2014-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Razvojna pločica E2LP zasnovana je na procesoru NXP LPC2368. Na navedenoj razvojnoj pločici reproducira se zvuk korištenjem DAC i PWM izlaza na koje je spojen zvučnik. Obrađuju se tipovi datoteka koji sadrže podatke potrebne za reprodukciju zvuka te načini čitanja i izvlačenja podataka iz tih datoteka. WAV datoteke sadrže vremenski diskretne uzorke zvuka od kojih DAC izlaz generira kontinuirani zvučni signal, dok MIDI datoteke sadrže frekvenciju i trajanje pojedinih tonova koji se reproduciraju pomoću PWM izlaza. DAC i PWM izlazi su programirani u programskom jeziku C koristeći program Keil µVision4.

Abstract (english)

Development board E2LP is based on the NXP LPC2368 processor. At this development board sound is being reproduced using DAC and PWM outputs connected to a speaker. The types of files that contain the information necessary for sound reproduction are being processed, as well as ways of reading and extracting data from these files. WAV files contain time discrete samples of sound of which DAC output generates a continuous audio signal, while MIDI files contain the frequency and duration of individual tones that are reproduced using PWM output. DAC and PWM outputs are programmed in C programming language using Keil μVision4 software.

• Keywords: LPC2368 procesor; reprodukcija zvuka; digitalno-analogni pretvornik; pulsno-širinski modulator; WAVE datoteka; MIDI datoteka; C programiranje
• Keywords (english): LPC2368 processor; sound reproduction; digital-to-analog converter; pulse width modulator; WAVE file; MIDI file; C programming
• Language: croatian
• URN:NBN: urn:nbn:hr:168:531783
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 07:33:45