Alternative Multiformat Listening Test @ 128 kbps
Reply #29 – 2006-01-18 12:26:19
Just my 2 cents ... ;-) 1) Well ... not really 128 Kbps test but 140 Kbps listening test Sample (Duration in Seconds) iTunes LAME Nero AoTuV WMA Professional -------------------------------------------------------------------------------------- BigYellow (24) 139 141 139 147 138 bodyheat (25) 136 146 138 139 143 Carbonelli (17) 128 121 142 143 92 Coladito (20) 145 152 140 152 162 DontLetMeBeMisunderstood (30) 143 162 137 163 165 yello (9) 142 160 152 175 115 Elizabeth (29) 128 109 137 112 117 eric_clapton (25) 141 153 138 146 153 ReunionBlues (30) 144 155 137 143 163 LesJoursHeureux (20) 136 146 141 180 119 macabre (17) 133 147 142 149 125 MysteriousTimes (28) 143 148 137 146 153 ravel (28) 140 149 137 131 157 School (19) 144 153 141 163 150 Senor (17) 135 137 142 132 131 SongForGuy (15) 133 144 144 161 126 TheDraperyFalls (30) 138 146 137 156 140 WhiteAmerica (30) 128 113 137 125 113 -------------------------------------------------------------------------------------- Average: 22.94 137.56 143.44 139.89 147.94 136.78 2) Target bitrate is always a big problem for me 1- Vorbis with rating 4.79 and 147 Kbps for bitrate 2- I-tunes with rating 4.74 and 137 Kbps for bitrate It's 7% difference for bitrate. In comparison RDO advantage for MPEG4 ASP is only 6% in metric test (VHQ0 vs VHQ4 for example). Make visual test with XviD at 930 Kbps and DivX at 1000 Kbps is certainely strange test too ... I'am really curious to see test with that: 1- Vorbis with rating X and 127 Kbps for bitrate 2- I-tunes with rating 4.74 and 137 Kbps for bitrate or test with that: 1- Vorbis with rating X and 116 Kbps for bitrate 2- Vorbis with rating Y and 128 Kbps for bitrate 3- Vorbis with rating Z and 140 Kbps for bitrate 3) Ogg Vorbis has a very good and fine quality preset. Why use q4.25 ... and make undersize target. Why not q4.00 or other setting for better target bitrate ... 4) The good point is the test (finally) for (old) wma9 pro.