edwinr Posted September 20, 2006 Share Posted September 20, 2006 Loudness Table dbSPL Example 0 Threshold of hearing 10 Normal breathing 20 Whisper at 2.5 yards 30 Soft whisper 40 Quiet residential area 50 Rainfall 60 Normal conversation 70 Highway traffic 85 Noisy restaurant 90 Shouted conversation 100 School dance 110 Disco 110 Shouting in ear 112 MP3 player (highest volume) 115 Rock concert 120 Car sound system 130 Car race 150 Firecracker (1 yard) 157 Balloon pop (1 foot) Note: This subjective measure is easier for me to work out how loud I actually listen to music at home. So based on this table I listen mostly around 85 to 90dbSPL. Quote Link to comment Share on other sites More sharing options...
SilverSport Posted September 20, 2006 Share Posted September 20, 2006 nice Edwin...good to know. Bill Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted September 20, 2006 Share Posted September 20, 2006 I wonder how many dbs it is to plug in a hot RCA cable? Quote Link to comment Share on other sites More sharing options...
flannj Posted September 20, 2006 Share Posted September 20, 2006 I wonder how many dbs it is to plug in a hot RCA cable? I've done that, I think my swearing afterwards was even louder. Quote Link to comment Share on other sites More sharing options...
edwinr Posted September 21, 2006 Author Share Posted September 21, 2006 I can't believe that balloon pop at 12 inches - 157dbSPL! [] According to Australian OH&S guidelines, noise levels exceeding 105dBA can damage hearing if the listener is exposed for more than 15 minutes. At 110dBA maximum safe exposure is only 90 seconds. But even at a relatively sane 85dBA (noisy restaurant levels), maximum safe exposure is only 8 hours before permanent hearing damage can occur. Scary stuff! Quote Link to comment Share on other sites More sharing options...
steve Posted September 21, 2006 Share Posted September 21, 2006 true, but who's gonna be awake after 8 hours of listening, and sipping the suds?? Problem solved! Quote Link to comment Share on other sites More sharing options...
SET12 Posted September 21, 2006 Share Posted September 21, 2006 Note: This subjective measure is easier for me to work out how loud I actually listen to music at home. So based on this table I listen mostly around 85 to 90dbSPL. Edwinr, An excellent post I am at about the same levels probably a little louder at 90 to 95db once in awhile to a 100db at my chair in my system this puts the speaker at 110db when at 100db at my chair. With 10 watt amps I might add! And still room to spare! SET12 Quote Link to comment Share on other sites More sharing options...
cwop Posted September 21, 2006 Share Posted September 21, 2006 "I can't believe that balloon pop at 12 inches - 157dbSPL!" I dont believe this whatsoever, this is more like a 'magnum 44' at 3 ft!!!! There 'd be a lot of kids with the possibility of permanent hearing losses if this figure is accurate!! Quote Link to comment Share on other sites More sharing options...
Marvel Posted September 21, 2006 Share Posted September 21, 2006 "I can't believe that balloon pop at 12 inches - 157dbSPL!" I dont believe this whatsoever, this is more like a 'magnum 44' at 3 ft!!!! There 'd be a lot of kids with the possibility of permanent hearing losses if this figure is accurate!! It's also not a sustained level, but an instantaneous one. Still seems a bit high to me. Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted September 21, 2006 Moderators Share Posted September 21, 2006 I think I am mostly about 80, with moments/songs at 100. I question the ballon. The stats I would like to see are on jet engines. I have done a lot of flying, been in and crawled around all kind of airplanes, and nothing, I mean nothing, has ever sounded louder then a jet engine. Travis Quote Link to comment Share on other sites More sharing options...
SET12 Posted September 21, 2006 Share Posted September 21, 2006 I have attended EAA in Oshkosh,WI here and have certainly been on the flight line enough the SPL's of a jet is listed at 130db + in my Radio Shack sound level meter book I believe and I think that is on the idle side of a jet engine I know its painful to be sure! SET12 Quote Link to comment Share on other sites More sharing options...
Marvel Posted September 21, 2006 Share Posted September 21, 2006 The chart is from "Modern Recording Techniques" by Robert Runstein / Howard W. Sams & Company /First Edition - Seventh Printing 1979. I know there are newer ones out there than this one, but I've had this one since it was published. If this isn't clear enough, I'll scan it again. Bruce Quote Link to comment Share on other sites More sharing options...
DrWho Posted September 21, 2006 Share Posted September 21, 2006 According to Australian OH&S guidelines, noise levels exceeding 105dBA can damage hearing if the listener is exposed for more than 15 minutes. At 110dBA maximum safe exposure is only 90 seconds. But even at a relatively sane 85dBA (noisy restaurant levels), maximum safe exposure is only 8 hours before permanent hearing damage can occur. Scary stuff! I think those numbers are a bit extreme for permanent damage. Could it be talking about temporary threshold shifts? Quote Link to comment Share on other sites More sharing options...
Guest " " Posted September 21, 2006 Share Posted September 21, 2006 here's some intresting info..according to this "klipsch" provided chart...the range of human hearing ends at 120db...think this has happended to me once or twice...music gets so loud..you hear fuzz or a water falls type of sound...ears start flapping...nose running...etc. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted September 21, 2006 Share Posted September 21, 2006 But, according to this "klipsch" provided chart...your heritage line speakers would crap out by 115 db's. Now kids. before you try this at home, remember, this came out of a 1998 klipsch catolog, significance of that is the the test speaker had the 3rd generation xovers in them (AK-3, AB-3, AL-3) rather than the first generation xovers in them (AA), the later being a steeper slope, with more goodies to protect your drivers from damage, if you have an AA xover, you probally will reach the failure threashold a little sooner than the suggested 115 db's. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted September 21, 2006 Share Posted September 21, 2006 You still should proceed down audio lane with your safties on, because according to this "klipsch" provided chart, there's a thing called "living room" watts, which, upon the heritage line receiving 8 of them, you can approach the 115db. They must be counting echo's and vibrations, wife slaming the door once you crank up your tunes, kids countering with their stereo's, cops knocking to investigate, etc. Quote Link to comment Share on other sites More sharing options...
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