Slide 4:
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Evaluation of perceived quality

Ogg Vorbis sounds good at higher bit rates from 64 to 128 kilo bits per second. This is what many test results show.

A known problem is that "S" sounds will not sound so good at low bit rates, like 24 kbit per second.

If you are interested in trying out Ogg Vorbis yourself, you can go to the following links:

http://www.nrk.no/lyd

http://malxrstream01.nrk.no/nrk-alltid-nyheter-128.ogg

http://159.33.6.141:80/cbcr1-toronto.ogg

Any questions ?