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Old 27th March 2017, 08:40 AM   #1
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Default Sound Exposure Levels

As a classical musician, I work in an environment where management and players have a very high awareness of sound level dosage and I do wonder if members here are aware of the implications of listening to music at high levels.

The permitted daily dosage of sound for noise at work according to law is 8 hours @ 85dB. Of course every 3dB increase means a halving of the time. So at 91dB the permitted exposure time would be 2 hours; 100dB 15 minutes.

When I read some of the comments on this site about "realistic" levels, and how they want speakers to be capable of 110dB and they want to listen in the mid 90s, I wonder if the members saying these things are aware of how this could impact on them in the future.
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Old 27th March 2017, 08:47 AM   #2
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8 hours at 85dB sounds a lot to me
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Old 27th March 2017, 08:54 AM   #3
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Bear in mind that the safety ratings are continuous noise. Music, by nature, has transients that're louder than the average volume.
If you've got some fairly dynamic music, with a peak-to-average ratio around 20dB, you can have 90dB average SPL with short-term peaks of 110dB.

The people you describe want to be able to reproduce those peaks cleanly. If they wanted to listen at 110dB average, they'd need a 130dB-capable system.

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Old 27th March 2017, 09:00 AM   #4
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Originally Posted by scottjoplin View Post
8 hours at 85dB sounds a lot to me
But then, I've never looked to the government for good advice
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Old 27th March 2017, 11:10 AM   #5
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If I'm lucky, my kids are out of the house long enough for one listening session, per week.

That could be as much as three hours.

Hardly long enough or loud enough to set my ears ringing.

Sent from my Nexus 6 using Tapatalk
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Old 27th March 2017, 11:36 AM   #6
Ron E is offline Ron E  United States
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Quote:
Originally Posted by scottjoplin View Post
8 hours at 85dB sounds a lot to me
That level is an OSHA level that is not meant to "protect" hearing, but a level at which you won't be extremely impaired after working for many years.

The level is A-weighted, so 85dB is actually quite loud.
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Old 27th March 2017, 01:32 PM   #7
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Thank you for the clarification. This is a good article by Rod Elliott Sound Level Measurement. It also makes a mockery of the public health official standing in the street with a meter trying to decide if there is a noise issue
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Old 27th March 2017, 01:43 PM   #8
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Originally Posted by midrange View Post
As a classical musician, I work in an environment where management and players have a very high awareness of sound level dosage
Hi. That's good. There was a news story recently about a musician who was suing his orchestra for hearing damage, I don't recall the details I'm afraid.

How do you protect yourself during rehearsal and performance? What do you play?
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Old 27th March 2017, 08:54 PM   #9
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> impact on them in the future.

What?

As said, the _occupational_ specs are for when you are PAID to trade-off your health for money. Whether the numbers are fair or not, we have to have numbers to justify a government.

I became very aware around a Hot Tuna concert in the 1970s. (I actually was already over-dosed on a local band, was walking to HT, and about 300 feet away decided this was a bad idea.) I avoided and limited exposure for decades, despite working around loud music. I have several ear-muffs and use them with mower, tractor, chain-saw. But incidental mechanical work, and bad genes, has high-cut me around 2KHz.
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Old 27th March 2017, 10:02 PM   #10
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I went to a Status Quo concert in 1976.
I couldn't hear for 3 days afterwards.
Everything just sounded really muffled.

Status Quo have been around for about 50 years and had their hearing tested in 2000-ish and they were all fine ! Amazing.
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