World loudest bicycle horn!! 178dB !

[Doctorbass]

But.. this is stupid

maybe except when yyou want to say: GO AWAY !!..... :lol:


[youtube]XTQSWtK65PE[/youtube]

 

[ddk]

'scuse me
but 178dB SPL
will kill


perhaps it's more like 128dB (SPL)
which only causes permanent hearing damage...

 

[Doctorbass]

'scuse me
but 178dB SPL
will kill


perhaps it's more like 128dB (SPL)
which only causes permanent hearing damage...

no.. i can say that 178 db will not kill... :wink:

i've been a great SPL car audio contestant in dbdragracing for the past years and i've few times been in the sub box of a 170dB spl car during it burp that 70hz tone and i'm still alive!.. it shake you as well ! but not kill.

High and mid frequency make more damage to hearing. bass might puncture your headroom but you will still hear.

My own integra had a 157dB "at the dash" sound system of 54Hz for the SPL and you can endure that no prob

Doc

Doc

 

[ddk]

having been an audio systems engineer and designer of sound systems (LARGE SYSTEMS) I question your measurement technique.
I doubt seriously you even got to 130dB because if you did NO MATTER WHAT THE FREQ generated
your ears would be bleeding. As would other parts of your body.
but wtf would I, with 45 years of experience know about such things?
notin' i quess
enjoy your deafness at 50

 

[flathill]

130dB SPL will not make you bleed! 130dB is nothing in the dB drag racing world.

 

[ddk]

haha
you kids don't seem to understand 'levels' of bleeding
Tiny ruptured blood vessels are tiny.

Either way this isn't the forum for discussing instantaneous SPL vs. average SPL
but I'll stop by mentioning the space shuttle (now retired, like me) generated an average SPL of 173dB+ AT GROUND ZERO

heard any ringie-dingies in the ears after a drag race?

 

[cruiserbikeman]

That's a train horn. I can hear them across town. How about recording a train or tractor trailer engine with horn sounds onto an mp3 player with good speakers. Play it on repeat settings looping it constantly.

I use the Delta Cycle Airzound Horn. It really gets people attention. Their eyes look wider than an anime character's eyes when they hear the horn.

 

[melodious]

It's really all relative to where your ears are in relation to the horn. Too bad the horn can't do the "Dukes of Hazard" horn, or my favorite, "La Cucaracha".

 

[Dauntless]

Yeah, I've been wanting to do this. Except they'll give tickets, maybe even confiscate the bike.

I probably wouldn't stop at a train horn. I'm thinking of a fog horn as heard on freighters. I'd probably wear ear plugs in case I wanted to use it. Some earmuffs over that. If some cop tried to pull me over, I'd lay on the horn until he went away. . . .

 

[icecube57]

'scuse me
but 178dB SPL
will kill


perhaps it's more like 128dB (SPL)
which only causes permanent hearing damage...

no.. i can say that 178 db will not kill... :wink:

i've been a great SPL car audio contestant in dbdragracing for the past years and i've few times been in the sub box of a 170dB spl car during it burp that 70hz tone and i'm still alive!.. it shake you as well ! but not kill.

High and mid frequency make more damage to hearing. bass might puncture your headroom but you will still hear.

My own integra had a 157dB "at the dash" sound system of 54Hz for the SPL and you can endure that no prob

Doc

Doc

160db at 32 hertz... can possibly evacuate your bowels.

 

[Doctorbass]

having been an audio systems engineer and designer of sound systems (LARGE SYSTEMS) I question your measurement technique.
I doubt seriously you even got to 130dB because if you did NO MATTER WHAT THE FREQ generated
your ears would be bleeding. As would other parts of your body.
but wtf would I, with 45 years of experience know about such things?
notin' i quess
enjoy your deafness at 50

Believe me.. I know what i'm talking about 8)

The measurement technique was made with both calibrated Bruel & kjear spl meter and also my audio control SA-3055 professional RTA with SPL-180 option as the DBdragracing rules require ( please see the termpro website for the infos)

As i said it is not average SPL it's a "burp tone" so iT's 2-3 sec.. just enough time to generate enough cycle to let the cabin resoance ( 1/2 wave and 1/4 wave) level stabilized and to gave the integration time of the SPL meter to latch the read and display it.

Spl is relative to the power and volume and freq. ex i was able to generate 170dB with a single 6" woofer at 120hz in a 18 cubic inch box... but it mean nothing since the volume and the speaker QTS and mms was modified to match the box volume to resonate perfectly with that box.. as well the mic was placed IN the box... that was only to demonstrate the crowd that spl is relative to many factor... as well as a whale can do 198dB in water wich would be impossible in the air unless we have more than 1 bar atm pressure...

enjoy your deafness at 50

As an 45 yars old experience sound ingeneer you should know that what cause hearing damage on long time periode is HIGH and mid freq... not the low freq
low freq usually make immediate damage as high freq make damage over long period...

I am not saying that SPL is not dangerous! but i know what trully is and what is less

and YES i have good hearing at 36 and i'm on the average resuylt for the hearing test based on my age and the last test i had 2 years ago... 7 years after i retired in car audio and came to the EV hobby.

I would more fear about that low mid train freq horn even at 150dB or a 130dB horn tweeter in a discoteque than than a SPL BASS car at 170dB

But maybe this one.... :lol:

Welcome to the 21 century.... time have changes and SPL record too....

[youtube]hf1pabUmXek[/youtube]

Doc

 

[Paul_G]

Use the air tank to drive an air motor