earplug modification

Modification of Musicians’ Earplugs: The Romance Continues…

This is a continuation of a previous post where the romantic nature of Musicians’ earplugs and a neat equation was introduced…. Musicians’ earplugs have been in use since 1988 when they were first introduced. An invention of Elmer Carlson (of twin tube fame), they were first commercialized and marketed by Etymotic Research (now Lucid Audio),…

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The Occlusion Effect with Musicians’ Earplugs – Part 2

In part 1 of this blog series, some characteristics of the occlusion effect were discussed.  This refers to low frequency voice or musical energy (below 500 Hz) that is transduced (typically through the boney portion of the ear canal) and unless the ear is blocked up, is not heard- the low frequency sound energy escapes…

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