Hand-held sound meters

[cheese]

Hey I was talking to a guy at a show recently and they have some quite nice hand held sound meters.

0563.8155 TESTO 815 SOUND LEVEL METER NZ $ 624 – 00



0563.8165 TESTO 816 SOUND LEVEL INSTRUMENT NZ $ 1 264 – 00


Not too sure if anyone here is keen on them, but they seem pretty accurate.

contact Anton at Eurotec Instruments Ltd - DDI + 64 9 526 7567

[NighthawkNZ]

Hey I was talking to a guy at a show recently and they have some quite nice hand held sound meters.

0563.8155 TESTO 815 SOUND LEVEL METER NZ $ 624 – 00
0563.8165 TESTO 816 SOUND LEVEL INSTRUMENT NZ $ 1 264 – 00

Not too sure if anyone here is keen on them, but they seem pretty accurate.
contact Anton at Eurotec Instruments Ltd - DDI + 64 9 526 7567

http://www.dse.co.nz/cgi-bin/dse.storefront/470063ab00d3f25c273fc0a87f33067a/Product/View/Q1362

though not for NOT RECOMMENDED FOR COMMERCIAL USE. and Accuracy: +⁄- 2.0dB

[cheese]

Those DSE ones are shit.

[NighthawkNZ]

Those DSE ones are shit.

depends what you want to use them for?

[GR81]

my work cellphone has a built-in dB meter, would be interesting to see how accurate it is.

[cheese]

Well as of next year you will need to meter bikes for events.

[Buddy L]

I wouldn't worry cheese your bike will only make a shit load of noise at high RMP.
So you will be sweet as, well under the limit.

[NighthawkNZ]

Well as of next year you will need to meter bikes for events.

as long as if I am legal for the road... it don't bother me :D

[GR81]

I wouldn't worry cheese your bike will only make a shit load of noise at high RMP.
So you will be sweet as, well under the limit.

gotta actually take the bike out to be over the limit lol

[dammad1]

Hey I was talking to a guy at a show recently and they have some quite nice hand held sound meters.

0563.8155 TESTO 815 SOUND LEVEL METER NZ $ 624 – 00



0563.8165 TESTO 816 SOUND LEVEL INSTRUMENT NZ $ 1 264 – 00


Not too sure if anyone here is keen on them, but they seem pretty accurate.

contact Anton at Eurotec Instruments Ltd - DDI + 64 9 526 7567

Hey cheese, thats who I work for, the Testo brand is out of Germany and we can also offer full support with repairs and calibration, which you wont get with other cheap chinese models.

[rijekaz]

What is the db limit?

[The Lone Rider]

What is the db limit?

100 dbSPL for a bike, but police and WOF places are just as likely to go by subjective opinion then actually test your bike.

[dammad1]

Sound testing can be very subjective. It needs to be done in a controlled area but it never is. How can you say something is to loud when testing in an open enviroment with all sorts of background noise and etc.

This agurment with noise limits has been going on for a long time with cars and I used to get all sorts of hassles with the cops over my rotaries.

[RC1]

i have one on my mobile phone and my bike reads 112db at @6k and at the bike shop it reads @115bd at same rpm so its fairly accurate :2thumbsup

[B0000M]

isnt every 3db double the loudness? (here we go)

its fairly easy to tell when a bike is too loud, use your ears!, heres an example

bike 1 goes past, sounds normal
bike 2 goes past sounds normal
bike 3 goes past sounds normal
bike 4 goes past, sounds fucken loud.
bike 5 goes past sounds normal

result: send bike 4 packing until fixed.

(bike 4 was probably a 4 stroke)

[dammad1]

isnt every 3db double the loudness? (here we go)

its fairly easy to tell when a bike is too loud, use your ears!, heres an example

bike 1 goes past, sounds normal
bike 2 goes past sounds normal
bike 3 goes past sounds normal
bike 4 goes past, sounds fucken loud.
bike 5 goes past sounds normal

result: send bike 4 packing until fixed.

(bike 4 was probably a 4 stroke)

You found the answer BOOM, ban the four strokes and problem solved! LOL!

[rijekaz]

Found this quite interesting from a few years ago notice how most of the performance pipes would all be over the 100db.

http://www.trailandenduro.com.au/2004/rules/noise.html

[vr4king]

isnt every 3db double the loudness? (here we go)

its fairly easy to tell when a bike is too loud, use your ears!, heres an example

bike 1 goes past, sounds normal
bike 2 goes past sounds normal
bike 3 goes past sounds normal
bike 4 goes past, sounds fucken loud.
bike 5 goes past sounds normal

result: send bike 4 packing until fixed.

(bike 4 was probably a 4 stroke)

Or a tractor..............oh hang on same thing:bleh::bleh:

[cheese]

LOL thats funny that you work there Dammad1!! I met the guys at the hospitality show. I was thinking that its a good idea for the event guys to know about.

[Kickaha]

Found this quite interesting from a few years ago notice how most of the performance pipes would all be over the 100db.

http://www.trailandenduro.com.au/2004/rules/noise.html

At a recent MNZ meeting I attended they said in general a pipe from a European manufacturer will pass the sound test as they are mostly built with FIM competition in mind but pipes out of the USA wont

MNZ have been and will be doing sound testing of their own before the National season starts and there will be sound testing at all National rounds

[dammad1]

LOL thats funny that you work there Dammad1!! I met the guys at the hospitality show. I was thinking that its a good idea for the event guys to know about.

Yeah I wasn't there as I look after a different range of products and try to leave all the handheld instruments to Anton and another couple of guys.

But if anyone does want a good one, let me know and i'll make sure you get a good price.

[takitimu]

http://www.dse.co.nz/cgi-bin/dse.storefront/470063ab00d3f25c273fc0a87f33067a/Product/View/Q1362

though not for NOT RECOMMENDED FOR COMMERCIAL USE. and Accuracy: +⁄- 2.0dB

I got one of the RadioShack analogue ones dse used to sell, handy thing for setting up home theatre speakers :). I'll do some tests tomorrow, should be under 92db from memory.

As an aside the American's are going quiet eg. FMF q4

[barty5]

isnt every 3db double the loudness? (here we go)

its fairly easy to tell when a bike is too loud, use your ears!, heres an example

bike 1 goes past, sounds normal
bike 2 goes past sounds normal
bike 3 goes past sounds normal
bike 4 goes past, sounds fucken loud.
bike 5 goes past sounds normal

result: send bike 4 packing until fixed.

(bike 4 was probably a 4 stroke)

what you talkin about there are one hell of a lota noisey chainsaws out there not just the fours specs show mine to only be 94db

[B0000M]

what you talkin about there are one hell of a lota noisey chainsaws out there not just the fours specs show mine to only be 94db

i wasnt directly only blaming 4 strokes. just having a dig at the end.

allthough mostly it is the 4 strokes that annoy surrounding neighbours by their carrying lower frequency sound, some 2 strokes are also too loud. keep your muffler fresh helps.

or in the case of the guy we saw on saturday, having bolts holding your baffle in also helps.

(brake caliper bolts are also useful cheese)

[bungbung]

100 dbSPL for a bike, but police and WOF places are just as likely to go by subjective opinion then actually test your bike.

100 when measured where? how far away? at what rpm?

[barty5]

i wasnt directly only blaming 4 strokes. just having a dig at the end.

allthough mostly it is the 4 strokes that annoy surrounding neighbours by their carrying lower frequency sound, some 2 strokes are also too loud. keep your muffler fresh helps.

or in the case of the guy we saw on saturday, having bolts holding your baffle in also helps.

(brake caliper bolts are also useful cheese)

We all like to have at what ever you dont ride guys were givin me shit for not havin push button start and that the bike was to clean(fixed that real quick)

man cheese that sounds like it could have been a nice trip over the bars

[DrewBroadley]

100 when measured where? how far away? at what rpm?

Most probably right outside the exhaust and all through the rev range to get the loudest note.

[cheese]

i wasnt directly only blaming 4 strokes. just having a dig at the end.

allthough mostly it is the 4 strokes that annoy surrounding neighbours by their carrying lower frequency sound, some 2 strokes are also too loud. keep your muffler fresh helps.

or in the case of the guy we saw on saturday, having bolts holding your baffle in also helps.

(brake caliper bolts are also useful cheese)

LOL one of my front brake caliper bolts fell out and the other was really loose. I noticed it when I lost front brakes and so I stopped and only had one vlot very loosely in!!!! Very slow trip back from there!!!!!!!!:2guns::2guns:

[takitimu]

Most probably right outside the exhaust and all through the rev range to get the loudest note.

Well, I'm 92db with the meter on the seat, jumping to 100db throttle blipped, assuming the meter is accurate at those levels.

[Deano]

Sound testing can be very subjective. It needs to be done in a controlled area but it never is. How can you say something is to loud when testing in an open enviroment with all sorts of background noise and etc.


If the sound under investigation is more than 10dB above the background level, there is no contamination of the source sound level.


isnt every 3db double the loudness? (here we go)


If you have one bike putting out 90dBA and you put another bike next to it putting out 90dBA, the resulting noise level will be 93dBA.

A doubling of the loudness (perceived by the average human ear) is 10dB.


100 when measured where? how far away? at what rpm?

There is a British Standard mentioned in the Traffic Reg's which stipulates the criteria and methods of assessment.

[The Lone Rider]

100 when measured where? how far away? at what rpm?

I dont actually know that. Im going by what LTNZ or something said on their website.

There was talk, and maybe it is law now, that there was to be objective measurement for cars and I guess bikes to.

I know for bikes, they dont do it. I went to AA and the guy said he couldn't warrant me because it was to loud. I said how loud, he said to loud. I said bullshit, LTNZ specifically states the law. He said if I can bring him a printed and signed sheet from a company that can measure it properly, he will pass it as he is just "going by the books" and that to him was any pipes that are not factory standard.

So I said to myself, fuck that and took it to a place that regularly does bikes. WOF was cheaper there to :D

[barty5]

can only fail if Quoted as per my
V.I.R.M . (Vehicle inspection requirements manual)

The noise output is noticeably and significantly louder than it would have been when the vehicle was manufactured with its original exhuast system.

and there fore it come down to the person who is doing your WOF to make the call and then it is only their opinion no sound meter is required as yet
this is the same rule applied to cars as well.

[Deano]

As per my previous post - I believe there is an objective method, but it's not being used due to lack of testing stations with appropriate sound level meters and trained operators.

[dammad1]

can only fail if Quoted as per my
V.I.R.M . (Vehicle inspection requirements manual)

The noise output is noticeably and significantly louder than it would have been when the vehicle was manufactured with its original exhuast system.

and there fore it come down to the person who is doing your WOF to make the call and then it is only their opinion no sound meter is required as yet
this is the same rule applied to cars as well.

Thats exactly right, which is why there is so many arguments over it and it all comes down to the luck of the draw with the guy you get doing your warrant or which cop pulls you up at the time.