Prijenos audio podataka u stvarnom vremenu korištenjem WiFi mreže

master's thesis

• Title (english): Real-Time Audio Transmission Using WiFi-Network
• Author: Ivana Storjak
• Mentor: Mario Cifrek (mentor)
• Committee member: Mario Cifrek (predsjednik povjerenstva)
• Committee member: Hrvoje Džapo (član povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-06-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U sklopu diplomskog rada osmišljen je sustav za generiranje, prijenos, zaprimanje,
reprodukciju i mjerenje signala. Radi detekcije izvora kašnjenja mijenjani su različiti
parametri programskog okvira GStreamer, uz promjenu odašiljača i prijemnika. Kao
odašiljačke komponente korišteni su LinkIt Smart 7688 i Carambola 2. Nadalje, kako
bi se ispitao utjecaj driver-a korištene su sljedeće zvučne kartice: CM108, CM6307A,
CM6317, Hama 7.1 surround i TLV320. Sa svrhom prijamnika korišteni su HP Pro-
Book 4520s i HP ProBook 4540s. GStreamer je korišten za zaprimanje, prijenos i
reprodukciju audio signala generiranog od strane Arduino Uno mikrokontrolera, koji
se također koristi kao platforma za mjerenje latencije. Signal je uspješno prenesen
WiFi mrežom i reproduciran na dva prijamnika istovremeno.

Abstract (english)

To accomplish the task of the project, a system for generating, transmitting, receiving,
reproducing and measuring the signal has been set up. Various parameters of the
GStreamer framework have been alternated, alongside with changing the receiver and
transmitter, to locate the source of the signal latency. As transmitters, LinkIt Smart
7688 development board and Carambola 2 have been used. To verify the influence
of drivers, CM108, CM6317, CM6030A, Hama 7.1 surround and TLV320 sound card
have been introduced to both transmitter boards. On the receiver side HP ProBook
4520s and HP ProBook 4540s have been tested. To transfer audio signal generated by
the Arduino Uno that is also being used as a platform to retrieve latency, a pipeline
has been set up for capturing, transmitting signal over WiFi and playing it. Signal was
successfully transmitted to both receivers simultaneously using WiFi network.

• Keywords: WiFi; prijenos u realnom vremenu; audio signal; GStreamer; LinkIt Smart 7688
• Keywords (english): WiFi; real-time transmission; audio signal; GStreamer; LinkIt Smart 7688
• Language: english
• URN:NBN: urn:nbn:hr:168:738345
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-14 00:59:49