Testing noise levels in the Volt -- my SPL meters on a Round Robin

[notaguru]

Anyone want a meter?

The more cars we check, the better the data...

[notaguru]

Whoever has the meters now, please check in.

If anyone else wants to get a meter to gather data, post here.

I'd like to wrap this up and get the meters back in about two weeks.

[notaguru]

Whoever has the meters now, please advise me by PM and I'll give you an address. I need them back for another project in about 10 days, so they should be shipped by Friday.

Thanks

[notaguru]

Not much data collected, and one meter still out there.

WILL WHOEVER HAS THAT METER PLEASE RETURN IT? I THINK IT'S DONC, BUT CAN'T BE SURE.

[AySz88]

Oops, I forgot to post the last of my data - here it is without the cargo mat:

Idle out of traffic: 60, 59, 58
Idle in traffic: 64, 64, 63
30: 80, 81, 78
30 ICE on: 84, 83, 80
60: 81, 83, 81
60 ICE: 85, 84, 86

For reference, the data with the mat:

Idle: 66, 65, 64
Idle ICE: 74, 74, 68
30: 80, 81, 76
30 ICE: 82, 82, 80
60: 83, 83, 81
60 ICE: 82, 82, 84

It looks like the cargo mat cuts down the noise by around 1-2 dB, and maybe slightly more on the highway. (It's 10%-20% less pressure amplitude if I did my math right, though relatively little difference in perception.)