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Hearing Test
Sound Advice
by Brent Handy
Contributing Writer
July 31, 2008






...1,2,3...Is this thing on?


There is a movement in the audio industry. Artists and engineers are taking a look at the cold hard Sound Pressure Level (SPL) facts. Most commercial events have loudness levels and exposure times exceeding OSHA's limits for the workplace.

Let there be no misunderstanding. I have worked for one of the loudest guitar players on the planet, and I am sure we have hurt some people. After a show, a fan came up to me and said. "I never had guitar feedback punch me in the chest like that." Also that night, one of Elvis Presley's original studio players was in the house. He commented on being able to hear WELL without his hearing aids. I was guilty of excessive SPL's. I have changed my ways. It is time for those of us in the Church to follow the example, and take a look/listen at our own excessive SPL's.

There have been many bands, promoters and venue owners sued over hearing loss. If YOU buy a ticket to Metallica, and YOU know what the band is, what music they play, and what they represent, then YOU (in my book of common sense) are responsible to either not go, or bring hearing protection. DUH! These lawsuits may have been silly, but they are a wake-up call. We should be as cautious about an incident like this, as we would a "slip and fall." Both of these events can have a BIG impact on your insurance rates, and presence of OSHA, state and federal representatives in your facility.

Without getting too technical, lets look at some facts. Our hearing system can experience three types of hearing loss: Conductive, Sensorineural, and Mixed. Conductive hearing loss can occur if the structures of the outer ear to middle ear do not work properly. Conductive loss is more likely to respond to medical and/or surgical treatment. Sensorineural loss is nerve deafness. Sensorineural loss is more permanent. Mixed includes both of these types. We are most concerned with preventing nerve deafness, as it is attributed to high SPL's and/or high SPL's for extended exposure times. Leon has an article with an SPL chart in it, so I won't replicate one here. Suffice it to say, that if you are averaging 90dB or above for the duration of the service, then you are too loud!

A loss of up to 20dB Hearing Level (HL) is considered "normal" hearing. A loss of 21-45dB HL is considered "mild." People with a "mild" loss may experience difficulty understanding a soft spoken person or speech at a distance. Understanding speech over background noise may be difficult. "Moderate" loss is 46-65dB HL. People with this loss have a hard time with one on one speech in any environment. Trying to hear over background noise is extremely difficult. "Severe" loss, 66-85dB HL prohibits conversation, unless the speaker is talking loudly at close range. The last step is "profound" loss, from 86dB HL on up. Communicating is generally used by other means, as they cannot hear even the loudest sounds.

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  • User Opinions:

    Total: 6 Opinions  -   Displaying: 3 of 6Read More...


    Hearing Test --Sound Advice
    I read your article with great interest. I am a piano technician and have tuned in many churches and the second largest Christian conference center in the US for over 25 years. The sound level is deafening in many of these places. Does God require...more

    Submitted by: Diane Hofstetter
    Location: Santa Cruz, CA



    Good Stuff
    Great article Brent. You raise some very valid points, and, if you'll pardon the pun, offer some very sound advice. There certainly is no need for Rock concert sound pressure levels in a worship service. I wish more people thought like you.One ...more

    Submitted by: JC
    Location: Dallas TX



    Why all the noise?
    I am still trying to understand why it is necessary to be so loud in our praise and worship services. Has God lost His hearing? If we are louder, will He hear us better? Will He pay more attention to our needs? Are we trying to compete with the r...more

    Submitted by: sherry goodwin
    Location: saline Michigan



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