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Test: MP3 vs AAC vs OGG

post #1 of 4
3/2/10 at 10:15am
Thread Starter 
comparison of spectrum
data exported from Audacity

codecs:
MP3 Lame 3.98.2 q0
AAC Nero 1.5.3.0 2-pass
OGG Vorbis 1.2.3
encoding and decoding were done by software from same vendor

range 20 Hz - 19 kHz
7052 frequency bands

average difference in volume compared to WAV
MP3 320 CBR 0.054 dB 1.2%
AAC 320 ABR 0.113 dB 2.6%
OGG 320 Q87 0.140 dB 3.2%
AAC 190 ABR 0.377 dB 8.3%
OGG 190 Q59 0.497 dB 10.8%
MP3 190 ABR 0.727 dB 15.4%
lower is better


maximal difference in volume compared to WAV
AAC 320 ABR 0.391 dB at 12931 Hz
OGG 320 Q87 0.526 dB at 17337 Hz
MP3 320 CBR 1.219 dB at 18877 Hz
OGG 190 Q59 2.918 dB at 16933 Hz
AAC 190 ABR 8.843 dB at 18877 Hz
MP3 190 ABR 25.286 dB at 18938 Hz
lower is better


detailed results in attachment ( remove zip extension and decompress with 7-zip )
LL
LL
LL
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post #2 of 4
3/3/10 at 9:34am
Thread Starter 
new results from 7052 frequency bands instead of 233
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post #3 of 4
3/4/10 at 6:14am
Thread Starter 
added results from OGG Vorbis
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post #4 of 4
7/22/10 at 1:22am

Could you please update your images?

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