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Electroacoustic Measurements on Audio Coders (CROSBI ID 93029)

Prilog u časopisu | prethodno priopćenje

Jambrošić, Kristian ; Ivančević, Bojan ; Zorić, Igor Electroacoustic Measurements on Audio Coders // Automatika : časopis za automatiku, mjerenje, elektroniku, računarstvo i komunikacije, 41 (2000), 1-2; 63-67-x

Podaci o odgovornosti

Jambrošić, Kristian ; Ivančević, Bojan ; Zorić, Igor

engleski

Electroacoustic Measurements on Audio Coders

To transfer audio data via computer networks, it is necessary to make data reduction because of their limited transfer speeds. A common way to do data reduction is using the psychoacoustic model of the human hearing. Nowadays, the fast development of the Internet puts demands on the efficiency of audio coders. A number of objective and subjective experiments have to be done in order to compare different audio coders. This paper compares three different audio coding systems: MPEG-2 Layer III, MPEG-4 AAC and Real Audio G2 by analyzing their THD, S/N ratio, cut-off frequency and impulse response. The MPEG-4 AAC coding system showed the best results.

audio coders; electroacoustic measurements; psychoacoustic model

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Podaci o izdanju

41 (1-2)

2000.

63-67-x

objavljeno

0005-1144

Povezanost rada

Elektrotehnika