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The 7 Frequency Zones - Understand, Broaden Your Knowledge...
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<blockquote data-quote="shorai" data-source="post: 1116966" data-attributes="member: 24498"><p>Something we do not see much of in the reports is the perception of phase difference by the human auditory chain.</p><p></p><p>I was alerted to this a while back at HiFi Installations when the , then new, NAD and Rotel amps came out that paid attention to maintaining phase alignment through all the frequencies. </p><p></p><p>The demo was particularly simple, a recording was made where the walls of the studio were moved. </p><p></p><p>Many amps simply didn't get this right. A pure DC amp was required, additonal to this the amp design had to pay careful attention to all inductive and capacitive components and artifacts. </p><p></p><p>Our hearing of phase difference is vital to our survival since the accurate spacial determination of a sound source could be the difference between life and death.</p><p></p><p>The neural design audio, coupled to the large number of neurons ionvolved and the closeness of our ears to the auditory responce part of our brains leads me to believe that whilst I may not hear above 10 or even 13KHz pure sine wave, the effects of those harmonics on the phase differences my brain receives make these higher frequencies important. </p><p></p><p>Another post in a recent thread showed a video where sub microsecond phase differences in cables led to perceivable change.</p></blockquote><p></p>
[QUOTE="shorai, post: 1116966, member: 24498"] Something we do not see much of in the reports is the perception of phase difference by the human auditory chain. I was alerted to this a while back at HiFi Installations when the , then new, NAD and Rotel amps came out that paid attention to maintaining phase alignment through all the frequencies. The demo was particularly simple, a recording was made where the walls of the studio were moved. Many amps simply didn't get this right. A pure DC amp was required, additonal to this the amp design had to pay careful attention to all inductive and capacitive components and artifacts. Our hearing of phase difference is vital to our survival since the accurate spacial determination of a sound source could be the difference between life and death. The neural design audio, coupled to the large number of neurons ionvolved and the closeness of our ears to the auditory responce part of our brains leads me to believe that whilst I may not hear above 10 or even 13KHz pure sine wave, the effects of those harmonics on the phase differences my brain receives make these higher frequencies important. Another post in a recent thread showed a video where sub microsecond phase differences in cables led to perceivable change. [/QUOTE]
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Audio and Video Talk
General Discussion
The 7 Frequency Zones - Understand, Broaden Your Knowledge...
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