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Recommended SPL meter

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Recommended SPL meter

PostPosted: Thu Sep 19, 2019 8:32 pm
by blinddrew
Previously Hugh has recommended this little bargain: https://www.amazon.co.uk/Silverline-905 ... 601&sr=8-3
Sadly that supplier has advised that their current stock is all damaged and not good enough to send to a customer.
Can anyone particularly recommend an alternative site or product? Or should I just plump for a studiospares job?
Thanks
Drew

Re: Recommended SPL meter

PostPosted: Thu Sep 19, 2019 8:53 pm
by Hugh Robjohns
I found this model, which is the one I use for quick comparative uses.

https://www.rapid-tools.co.uk/tools/Silverline-Sound-Level-Meter--50---126dB-633937.html

Or from here:

https://www.test-meter.co.uk/analogue-sound-level-meter/

Or there's this variant of the same thing:

https://www.thetoolboxscotland.co.uk/silverline-sound-level-meter-111293-p.asp

The cheap meters with moving-coil meters seem to be increasingly rare, but there are loads with LCD numerical displays. I just find the analogue meter a little easier to use, but I'm sure the digital models will get the job done.
H

Re: Recommended SPL meter

PostPosted: Thu Sep 19, 2019 9:06 pm
by blinddrew
Thanks Hugh, will give them a look. :thumbup:

Re: Recommended SPL meter

PostPosted: Thu Sep 19, 2019 9:09 pm
by Folderol
I don't know about for this application, but digital meters have been pretty dire when you want to see dynamic trends, although some of the modern high quality ones do now have a bargraph along the bottom of the display.

Re: Recommended SPL meter

PostPosted: Thu Sep 19, 2019 9:16 pm
by James Perrett
I have the same one as Hugh linked to but with the Velleman name on it which is currently in stock at CPC

https://cpc.farnell.com/velleman-sa/avm ... dp/IN04978

Re: Recommended SPL meter

PostPosted: Thu Sep 19, 2019 9:39 pm
by blinddrew
Ah, also a good option, thank you James.

Re: Recommended SPL meter

PostPosted: Thu Sep 19, 2019 10:24 pm
by Hugh Robjohns
Good spot James -- I didn't think of checking CPC!

And yes Will, I agree entirely. Even with a slow weighting the digital displays tend to give dithery readings which can be distracting, whereas a simple analogue meter is much quicker and easier to interpret, and does make a trend easier to spot. I find that makes it easier when adjusting the sensitivity of a speaker to hit a specific target on a (band-limited) noise source.

I have a properly calibrated class 2 sound meter with lots of measurement options and capabilities, but my little cheapo meter actually gets used more often! :-D

H

Re: Recommended SPL meter

PostPosted: Tue Sep 24, 2019 11:00 am
by Hugh Robjohns
Just a follow up to see if you were successful in finding an SPL meter?

Re: Recommended SPL meter

PostPosted: Tue Sep 24, 2019 6:02 pm
by blinddrew
Not yet actually. Three places so far have had them listed as 'in stock' on the website only to subsequently inform me otherwise.
Will look again tomorrow.

Re: Recommended SPL meter

PostPosted: Tue Sep 24, 2019 6:04 pm
by Hugh Robjohns
Grrr... that's annoying! Seems to be happening a lot too.

Were you more successful with your RW3? My shipment turned up yesterday, but with only two packs instead of three on the pallet! The absent one will materialise at the end of the week apparently... Grrr....

Re: Recommended SPL meter

PostPosted: Tue Sep 24, 2019 6:08 pm
by blinddrew
Yep, had a call from Jewson today, picking up at the weekend. :thumbup:

Re: Recommended SPL meter

PostPosted: Sun Sep 29, 2019 1:40 pm
by blinddrew
Mixed results, haven't picked the RW3 up yet because I was waiting for another delivery and forgot that Jewson closes at 12 on Saturday. :headbang:
But the sound meter has arrived, thanks for the Farnell recommendation James. :thumbup:

One question.
If one was looking to measure the levels at a live gig, one would presumably use a C weighting.
I assume that would also be the case for measuring sound level reduction in a room?
Cheers

Re: Recommended SPL meter

PostPosted: Sun Sep 29, 2019 1:50 pm
by Hugh Robjohns
C-weighting is more or less flat, so gives a measurement which is reasonably representative of the perceived level when the SPL is fairly high, because the ear's response is also reasonably flat at, say, 75dBSPL and up.

In contrast, A-weighting removes a lot of low frequencies, replicating the ear's reduced sensitivity to LF when the average SPL is low (say, 60dBSPL and below) .

So yes, C-weighting is appropriate for getting an idea of peak or averaged levels at a gig.

Re: Recommended SPL meter

PostPosted: Sun Sep 29, 2019 1:59 pm
by blinddrew
Thanks as always Hugh :thumbup: