Ear protection
Just bought myself some MusicSafe earplugs/filters. They have three sets of interchangeable filters depending on the environment you're in. Thing is, I'm not sure which ones I should be using when. I don't really understand the calculation table on the pack. At 2000Hz, for example, it gives attenuation values of 27,7; 26,6; and 24,0 for the high, medium and low filters respectively. I haven't a clue what this means. I know I should be using the medium and/or high level ones for what I do, but not sure which ones when.
I play in a 20-strong carnival drum troupe for a couple of hours a week (range of drums - bass, snare, agogo bells, for example) and I also spend about the same amount of time in a 50-piece concert band (mixed brass & woodwind with percussion), where I sit directly in front of our six trumpeters.
Can anyone advise? Oh, and please don't ask me to do lots of calculations. Scientific equations aren't something I ever got my head around.