Timeline for Do our ears (or brain) only perceive periodic disturbances?
Current License: CC BY-SA 3.0
17 events
| when toggle format | what | by | license | comment | |
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| Apr 5, 2017 at 16:12 | history | tweeted | twitter.com/StackPhysics/status/849655956422234113 | ||
| Apr 5, 2017 at 10:14 | comment | added | Jim Balter | "we only ever hear anything that has a frequency" -- all sound is composed of waves, which have a frequency. | |
| Apr 5, 2017 at 10:11 | comment | added | Jim Balter | All sound is propagated as a wave, which has a wavelength (inverse of frequency). "Although we don't hear many of them due to short exposure. Isn't this true ?" -- no, that part isn't true. We might not hear them because the volume isn't sufficient to stimulate the nerves attached to the cilia in our ears, but short stimulations are still stimulations. | |
| Apr 5, 2017 at 8:56 | history | edited | Qmechanic♦ | CC BY-SA 3.0 |
edited tags; edited title
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| Apr 5, 2017 at 8:38 | answer | added | BowlOfRed | timeline score: 1 | |
| Apr 5, 2017 at 7:18 | history | edited | James Well | CC BY-SA 3.0 |
added 150 characters in body, changed title
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| Apr 5, 2017 at 7:10 | comment | added | James Well | But even drum sounds and clicks have frequencies don't they ? Although we don't hear many of them due to short exposure. Isn't this true ? | |
| Apr 5, 2017 at 6:39 | comment | added | user107153 | If you hear one cycle of a 440Hz note you'll hear a bang or a click. In general we perceive aperiodic sounds as bangs, thumps or clicks if they are not extended in time or as hisses or rumbles if they are. Obviously I have failed to define these terms (so this is a comment nit an answer) but the fact that we have these words -- and that drums exist as musical instruments -- tells you that we do indeed detect aperiodic sound. | |
| Apr 5, 2017 at 5:55 | vote | accept | James Well | ||
| Apr 5, 2017 at 5:56 | |||||
| Apr 5, 2017 at 5:47 | comment | added | James Well | @The Photon : what I mean by play a note 440 times per second means I hit the note 440 times per second so in one second we get 440 times the sequence "note/silence". Whichever note is played, it produces an A | |
| Apr 5, 2017 at 2:56 | history | protected | Qmechanic♦ | ||
| Apr 5, 2017 at 1:29 | comment | added | John Alexiou | You can hear white noise. We have a noise generator at work, and I wish I couldn't hear it. | |
| Apr 5, 2017 at 0:26 | answer | added | user2373145 | timeline score: 1 | |
| Apr 4, 2017 at 22:26 | answer | added | Cort Ammon | timeline score: 2 | |
| Apr 4, 2017 at 21:42 | comment | added | The Photon | 1. What do you mean by "play a musical note 440 times per second"? 2. Do you know about the modulation property of the fourier transform? | |
| Apr 4, 2017 at 21:32 | answer | added | Steeven | timeline score: 2 | |
| Apr 4, 2017 at 21:06 | history | asked | James Well | CC BY-SA 3.0 |