I am grateful to my new cyber-friend Greg who posted a thoughtful comment on our blog about the sound levels at Twist.
At risk of sounding like I'm dismissing his (very valid) opinion about the ideal sound level, I thought an extended explanation of my thoughts on the issue might be helpful for other people dealing with difficult rooms..
At the outset, I should say that I am always sad when we work hard to serve a group of people, and yet produce only discomfort (even if only for one person). This, unfortunately, is a reality of any ministry, particularly in music ministry where so many subjective and objective factors come into play. Here are a few things I'd like to keep in mind.
1. The room is very important
My initial response was that "the volume of any music will be determined by how well the room absorbs or reflects
sound energy." Greg helpfully queried why we can't just lower the stage volume by turning down our amplifiers.
The stage volume I'm referring to is the noise made by the performers on stage before any sound reinforcement happens (i.e. with the main speakers turned off). In contemporary music, it involves both amplified and un-amplified elements (drum kit, voices, acoustic piano, and guitar amps), which is why it is complex.
If you hit a cymbal in a given room, that energy has to go somewhere. In a room with a 1.8 second reverb time (like Angel place) that energy will not be diffused very quickly, and the sound on stage is going to be pretty loud everywhere, particularly as high frequencies tend to be less diffused by materials like wood and glass. Angel place is designed for chamber music, so even an unamplified violin will be clearly audible up the back. But bring in contemporary music, and the general sound pressures in the room are going to be on the higher side of the "ideal" range. Stage amplified elements (like the vocals) need to be raised to find clarity (or your singers won't be able to sing in tune, and nobody will be able to hear the words).
As Greg points out, the performer has some control over the dynamics - this is why I thank God for our drummer's (Sassy's) sensitive and controlled playing. He has been playing drums professionally for over 20 years, in stage productions from the Lion King, to Mary Poppins. For this reason I think we can safely exclude "performance factors" as needing attention.
The bottom line is, to go much quieter overall you'll need to pick a different style of music and instrumentation- solo piano accompaniment would be closer to Greg's ideal I imagine, whereas a pipe organ would probably be too loud as well (a solid sounding of the 16ft fundamental would blast us well out of the water!)
2. Hearing loss and music
But a more serious concern Greg raised was about whether the sound levels at Twist could cause hearing loss. Greg is rightly concerned about this. As professional musicians we are all very alive to this hazard of the industry (I like my ears!). This is why our crew all carry SPL meters. There is a sliding scale of acceptable sound pressures based on how long you spend listening to something - you can listen to 85decibels for eight hours a day, but you can only handle 130-140 decibels for a few seconds. You should not listen to anything over 140 decibels for any length of time (which is why you wear ear plugs at the firing range).
I don't have any readings handy I can show you, except to say that our band's audio is overseen by Richard Fenton who, aside from playing guitar for us, studied a masters of acoustics at Sydney Uni and oversees sound at the Sydney Opera House. He does not think anyone was at risk of hearing loss. I'm happy to defer to his professional opinion on that.
3. Genre and subjectivity
The biggest issue in sound levels, however, is that not everybody hears things the same. Many people I've met who will complain about a drum kit at 85dB will be perfectly happy singing to an organ at 95dB. Personal preferences are inevitably involved.
Then there are the varieties of age and abilities to factor in - people with hearing loss often struggle to separate out sound elements. My Dad reminded me on the weekend that "background noise is for people with dementia like stairs are for people in wheelchairs". We need to be conscious of the people who we are trying to serve - and doing that is going to require us to recognise that the "ideal" sound level is different for every crowd. I'm not sure how we address that in a room full of different people. I certainly don't think we're going to get it right all the time.
In short
The implications of all this is that "it's complex". Greg may well be right, for a certain crowd the ideal volume may be much lower than we achieved at Twist. But if we decided that Greg was right, and that we wanted to tweak the volume to suit those who prefer a quieter balance, it's not enough just to "turn down the amps". We would have to pack up and go home. Which I'm of course happy to do. But Twist asked us to come serve. So we did. And the feedback is that the vast majority of conference delegates were glad that we did.
(Ironically, the last feedback we got from an event on sound levels was at the Entertainment Centre, where a number of people complained we were too soft! It's hard to get an even spread across a big space, and it is entirely possible to get two entirely conflicting reports from the same gig!)
Thanks for your contribution to the discussion Greg - I'm sorry if I sound defensive! I really am happy to accept your complaint and agree to disagree. However, given this is a music blog, and many musicians field similar complaints, I felt an extended response might help other people think about the constraints on musicians in these circumstances.
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