REAL - REALPLAYER GOLD - Other
LINDOS AUDIO SEQUENCE TEST REAL - REALPLAYER GOLD - Other
SOURCE MS10 V3.0 MP3 128kb/s Save-Play
05-May-05 03:24 PM TOLERANCE PASSED


FREQUENCY RESPONSE @0dB [u]
20Hz -0.50 -0.50
31Hz -0.25 -0.25
40Hz -0.12 -0.12
50Hz 0.00 +0.12
100Hz 0.00 0.00
315Hz 0.00 0.00
1k0 0.00 0.00
6k3 0.00 0.00
10k0 0.00 0.00
12k5 0.00 0.00
14k0 -0.12 -0.12
16k0 -1.00 -1.00
20k0 -21.87 -21.62
25k0 -22.00 -22.00
TEST LEVEL OUT 1kHz [t]
TL dB 00.20 00.23
NOISE ITU-468 Q-Pk REL [n]
WTD -64.69 -64.56
DIST RES 1kHz WTD REL [r]/q
-20dB -42.32 -42.30
0dB -60.71 -60.58
+8dB -64.23 -64.58
+12dB -67.12 -65.28
+15dB -66.83 -67.28
+18dB -64.76 -65.12
PHASE R-L [z]


This is a test of MP3 quality using RealPlayer to make the file from
Lindos CD2 and then play back via Yellowtek PUC USB 'soundcard'

Not bad, but note 16kHz rolloff. This is much better than the 11kHz response of 96kb/s MP3 and probably as good as needed. Though higher MP3 bitrates (192k - 256k) give a slightly flatter response around 16kHz they do not extend the response significantly.

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