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In Reply to: Re: How low is too low posted by Ted Smith on June 15, 2006 at 10:05:11:
The threshold of hearing at 1khz is often taken to be 10 to the minus 16th power watts/square centimeter. This is often referred to as zero db.http://hyperphysics.phy-astr.gsu.edu/Hbase/sound/intens.html
It undoubtedly varies with frequency and from one individual to another.
This site gives it as a graphical representation as well showing its variation with frequency and contours for equal perceived loudness as a function of frequency at different sound levels.
http://en.wikipedia.org/wiki/Absolute_threshold_of_hearing
It also gives the threshold of pain as 120 db (10 to the minus 4th power watts/square centimeter) also expressed as 20 pascals.
I think the background noise threshold specified for concert halls by AIA (American Institute of Architects) is 27 db but I don't recall if that is A weighted, C weighted or unweighted. (My best recollection is unweighted.)
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Follow Ups
- Re: How low is too low - Soundmind 11:18:44 06/15/06 (94)
- ? - Ted Smith 11:27:14 06/15/06 (93)
- Re: ? - morricab 13:30:15 06/15/06 (1)
- Re: ? - Ted Smith 14:00:12 06/15/06 (0)
- Re: ? - Soundmind 11:46:36 06/15/06 (90)
- Re: ? - Ted Smith 14:19:59 06/15/06 (4)
- Re: ? - Soundmind 11:13:17 06/17/06 (3)
- no that's not right - tunenut 13:30:14 06/15/06 (83)
- Re: no that's not right - Todd Krieger 15:11:00 06/15/06 (61)
- I'm not taking sides in your war but this statement is just plain wrong - Soundmind 05:54:24 06/18/06 (0)
- No, Todd, again with that myth... - real_jj 16:47:12 06/15/06 (59)
- Oh, and retract your claim below that I am a fraud. - real_jj 16:50:34 06/15/06 (58)
- Opening Up Your Own Wounds..... - Todd Krieger 10:13:26 06/16/06 (57)
- Once again, you will retract your accusations immediately. - real_jj 10:38:41 06/16/06 (56)
- Why Can't You Just Post a Brief Explanation, In Laymen's Terms??? - Todd Krieger 11:55:10 06/16/06 (55)
- Oh, and your explaination of dither is wrong, too... - real_jj 12:10:49 06/16/06 (45)
- Re: Oh, and your explaination of dither is wrong, too... - Todd Krieger 12:21:55 06/16/06 (44)
- Nope, this isn't right, Let me try to explain dither. - Ted Smith 13:10:43 06/16/06 (34)
- Re: Nope, this isn't right, Let me try to explain dither. - Todd Krieger 13:42:58 06/16/06 (33)
- Re: Nope, this isn't right, Let me try to explain dither. - Ted Smith 13:50:26 06/16/06 (32)
- Re: Nope, this isn't right, Let me try to explain dither. - Todd Krieger 13:58:52 06/16/06 (3)
- Nope.... - real_jj 14:03:54 06/16/06 (2)
- Re: Nope.... - Todd Krieger 14:27:33 06/16/06 (1)
- Got anything to say, Todd? - real_jj 20:00:32 06/16/06 (0)
- this is, I believe, his point - tunenut 13:58:39 06/16/06 (27)
- I know, but - Ted Smith 14:12:42 06/16/06 (25)
- Maybe This Would Help.... - Todd Krieger 15:07:43 06/16/06 (19)
- ***sigh*** Same mistake you made years ago - real_jj 20:04:17 06/16/06 (2)
- Re: ***sigh*** Same mistake you made years ago - Todd Krieger 00:01:30 06/17/06 (1)
- So, like the guy at www.timecube.com, you won't go away... - real_jj 00:26:31 06/17/06 (0)
- That's misleading and actually wrong. - Ted Smith 15:28:54 06/16/06 (15)
- Re: That's misleading and actually wrong. - Todd Krieger 21:07:20 06/16/06 (14)
- Still the same mistake. - real_jj 22:21:43 06/16/06 (13)
- Re: Still the same mistake. - Todd Krieger 23:50:30 06/16/06 (12)
- Of course you can in many cases! - Ted Smith 07:39:37 06/17/06 (7)
- Bullshit.... - Todd Krieger 11:01:50 06/17/06 (6)
- Sorry Todd - Ted Smith 12:22:28 06/17/06 (2)
- Re: Sorry Todd - Todd Krieger 12:55:53 06/17/06 (1)
- Re: Sorry Todd - Ted Smith 13:03:49 06/17/06 (0)
- Tut... - real_jj 11:08:23 06/17/06 (2)
- The Poseur Posse.... - Todd Krieger 11:20:15 06/17/06 (1)
- See the questions addressed to you at the top of the board... - real_jj 11:30:37 06/17/06 (0)
- Well, let's see. - real_jj 00:20:18 06/17/06 (3)
- Re: Well, let's see. - Todd Krieger 00:51:57 06/17/06 (2)
- Re: Well, let's see. - andy_c 08:44:44 06/17/06 (0)
- Todd, go get a sub-director at www.timecube.com - real_jj 00:54:25 06/17/06 (0)
- Don't confuse oversampling with dithering... - real_jj 14:21:05 06/16/06 (3)
- Sorry I wasn't trying to - Ted Smith 14:32:35 06/16/06 (2)
- Understood... - real_jj 14:50:44 06/16/06 (1)
- Agreed - Ted Smith 15:05:56 06/16/06 (0)
- I see your point - tunenut 14:19:30 06/16/06 (0)
- Nope... - real_jj 14:08:31 06/16/06 (0)
- Please retract your misteaching above - real_jj 12:25:10 06/16/06 (8)
- Re: Please retract your misteaching above - Todd Krieger 13:10:21 06/16/06 (7)
- Re: Please retract your misteaching above - Dan Banquer 13:12:51 06/16/06 (6)
- Re: Please retract your misteaching above - Todd Krieger 13:29:58 06/16/06 (5)
- Totally wrong, as usual - real_jj 13:52:41 06/16/06 (1)
- Hint: - real_jj 13:56:16 06/16/06 (0)
- Re: Please retract your misteaching above - Ted Smith 13:52:32 06/16/06 (2)
- Re: Please retract your misteaching above - Todd Krieger 14:02:55 06/16/06 (1)
- Wrong again... - real_jj 14:13:48 06/16/06 (0)
- Why can't you actually just go read the deck? - real_jj 12:09:06 06/16/06 (8)
- I'm Not Just Going To Read It.... - Todd Krieger 12:17:13 06/16/06 (7)
- Let's see what you don't understand, then... - real_jj 12:24:11 06/16/06 (6)
- Re: Let's see what you don't understand, then... - Todd Krieger 23:36:20 06/16/06 (5)
- Incredible, you're zero for all! - real_jj 00:09:22 06/17/06 (4)
- A Word of Advice..... - Todd Krieger 00:36:39 06/17/06 (3)
- Get lost, you miseducating stalker. - real_jj 00:52:46 06/17/06 (2)
- If Your Head Got Any Bigger.... - Todd Krieger 01:00:54 06/17/06 (1)
- Go back to www.timecube.com, Todd - real_jj 01:16:18 06/17/06 (0)
- No, your brain can not do this in the same way... - real_jj 13:38:07 06/15/06 (19)
- there is more to it than the 200 msec - tunenut 15:31:21 06/15/06 (15)
- Yes and no. - real_jj 16:44:18 06/15/06 (14)
- Re: Yes and no. - morricab 02:27:57 06/16/06 (1)
- What's it dependent on? - real_jj 10:33:19 06/16/06 (0)
- OK I'm with you... - tunenut 17:23:10 06/15/06 (11)
- Re: OK I'm with you... - morricab 02:30:00 06/16/06 (10)
- Re: OK I'm with you... - Ted Smith 08:39:54 06/16/06 (9)
- Indeed.... - real_jj 10:40:24 06/16/06 (8)
- Re: Indeed.... - morricab 12:03:17 06/16/06 (3)
- No, that's a different issue... - real_jj 12:07:52 06/16/06 (2)
- Re: No, that's a different issue... - morricab 12:15:36 06/16/06 (1)
- Yes, but it's filled in with your expectation... - real_jj 12:32:49 06/16/06 (0)
- electronic voice phenomenon? - Ted Smith 10:52:39 06/16/06 (2)
- Can't say as I blame you... - real_jj 11:36:14 06/16/06 (1)
- Yep, that's why I blew it off. [nt] - Ted Smith 11:42:28 06/16/06 (0)
- Re: Indeed.... - Ted Smith 10:50:07 06/16/06 (0)
- Maybe Tests Could Be Run..... - Todd Krieger 15:20:00 06/15/06 (2)
- Word intellegibility - real_jj 16:46:15 06/15/06 (1)
- Oh, and where's your retraction? - real_jj 16:51:01 06/15/06 (0)
- Re: no that's not right - morricab 13:34:09 06/15/06 (0)
- Well... - real_jj 12:56:52 06/15/06 (0)
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