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How do people able to tell a high quality MP3 (frequency go up to 20khz) sound worse than a lossless audio since human can only hear close to 20khz frequency ? How
![MP3' Tech - An Examination Of The Correlation Between Perceived Sound Quality And Frequency Response Of Current MPEG Audio Encoders MP3' Tech - An Examination Of The Correlation Between Perceived Sound Quality And Frequency Response Of Current MPEG Audio Encoders](http://www.mp3-tech.org/tests/pm/MP3HQ160k.gif)
MP3' Tech - An Examination Of The Correlation Between Perceived Sound Quality And Frequency Response Of Current MPEG Audio Encoders
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