20.500.12556/DKUM-97644 Primerjava formatov izgubnega stiskanja avdia glede na metriko PEAQ diplomsko delo Comparison of lossy audio compression formats based on the PEAQ metric V diplomskem delu smo preučili delovanje kodekov pri izgubnem stiskanju avdio posnetkov pri formatih MP3, Opus, WMA, AAC, OGG Vorbis in AC-3. S pomočjo vrednosti ODG algoritma PEAQ smo ocenili, kateri format je bil bolj učinkovit. Za obdelavo 120 posnetkov smo implementirali avtomatizirano rešitev v Pythonu. Program je opravil pretvorbo v izbrane formate in nato samodejno izvedel analizo kakovosti na podlagi algoritma PEAQ. Vsi avdio posnetki so temeljili na enotni vzorčevalni frekvenci 48 kHz, kar je zagotovilo konsistentnost in primerljivost rezultatov. Na podlagi izvedenih testiranj smo primerjali učinkovitost posameznih kodekov glede na stopnjo stiskanja, zaznano kakovost in časovno zahtevnost. Ugotovili smo, da sta se najbolje odrezala Opus in OGG Vorbis. In this thesis, we examined the performance of codecs for lossy audio compression across formats such as MP3, Opus, WMA, AAC, OGG Vorbis, and AC-3. Using the ODG values provided by the PEAQ algorithm, we evaluated which formats proved more efficient. To process 120 audio sequences, we implemented an automated solution in Python. The program carried out the conversion into selected formats and then automatically performed quality analysis based on the PEAQ algorithm. All audio sequences were encoded at a uniform sampling rate of 48 kHz, ensuring consistency and comparability of results. Based on the conducted tests, we compared the efficiency of individual codecs in terms of compression ratio, perceived quality, and computational complexity. The analysis showed that Opus and OGG Vorbis achieved the best overall performance. avdiokodek FFmpeg izgubno stiskanje kakovost zvoka PEAQ audio codecs FFmpeg lossy compression audio quality PEAQ true true false [G. Rezar] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-03-28 10:22:03 2026-05-29 12:40:31 2026-06-10 03:06:58 0000-00-00 00:00:00 2026 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XI, 43 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.627.057:004.4'277.4(043.2) 280895491 UN_Rezar_Gregor_2026.pdf UN_Rezar_Gregor_2026.pdf 1 ACC2E63AA52D44F2DD5A2109FB3A8964 b7f2abc7c1e033eac7f1de6c9d9a5a9cfcbbe8b649a19ffb90d4cd34d022f039 f2db9dfc-39a8-11f1-af31-00155d0001a1 https://dk.um.si/Dokument.php?lang=slv&id=205388 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0