implications for high resolution formats? - AVS Forum
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post #1 of 2 Old 02-10-2013, 05:18 PM - Thread Starter
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For the first time, physicists have found that humans can discriminate a sound's frequency (related to a note's pitch) and timing (whether a note comes before or after another note) more than 10 times better than the limit imposed by the Fourier uncertainty principle.

Read more at: http://phys.org/news/2013-02-human-fourier-uncertainty-principle.html#jCp


What could be the implications for high res digital audio format?
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"In seminars, I like demonstrating how much information is conveyed in sound by playing the sound from the scene in Casablanca where Ilsa pleads, "Play it once, Sam," Sam feigns ignorance, Ilsa insists," Magnasco said. "You can recognize the text being spoken, but you can also recognize the volume of the utterance, the emotional stance of both speakers, the identity of the speakers including the speaker's accent (Ingrid's faint Swedish, though her character is Norwegian, which I am told Norwegians can distinguish; Sam's AAVE [African American Vernacular English]), the distance to the speaker (Ilsa whispers but she's closer, Sam loudly feigns ignorance but he's in the back), the position of the speaker (in your house you know when someone's calling you from another room, in which room they are!), the orientation of the speaker (looking at you or away from you), an impression of the room (large, small, carpeted). "The issue is that many fields, both basic and commercial, in sound analysis try to reconstruct only one of these, and for that they may use crude models of early hearing that transmit enough information for their purposes. But the problem is that when your analysis is a pipeline, whatever information is lost on a given stage can never be recovered later. So if you try to do very fancy analysis of, let's say, vocal inflections of a lyric soprano, you just cannot do it with cruder models."

Read more at: http://phys.org/news/2013-02-human-fourier-uncertainty-principle.html#jCp
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post #2 of 2 Old 02-11-2013, 09:33 AM
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Originally Posted by kraut View Post

Quote:
For the first time, physicists have found that humans can discriminate a sound's frequency (related to a note's pitch) and timing (whether a note comes before or after another note) more than 10 times better than the limit imposed by the Fourier uncertainty principle.

Read more at: http://phys.org/news/2013-02-human-fourier-uncertainty-principle.html#jCp


What could be the implications for high res digital audio format?

None.

The ability of 44/16 to record and playback signals for the test above vastly exceeds the capabilities of the human ear.
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