Speaking as the inventor of Earglasses® Sound Magnifiers, I was recently delighted by the kindness of one of our fans. This gentleman, a former loudspeaker designer and audio technician, took the time to carefully measure sound volume differences between using our acoustic lenses, or using nothing at all. Here’s a graph showing his findings:
What’s even more gratifying for me is to note that this is the measured performance for our new model. I was afraid that, because our new model is more compact, and thus less noticeable than our old model, that it would not amplify sound quite as well. Surprise! It’s clear from the graph of the amplification provided by our old model that our new model amplifies significantly more sound. See for yourself:
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