[Feature] Some fascinating aspects of transducer research and development were highlighted in papers and eBriefs presented at the "Virtual Vienna" convention. The overall trend was towards miniaturization, and MEMS devices come into their own here. 3D printers make it possible for experimenters to try out designs developed by others. It's also possible to develop remarkable metamaterials with specially designed resonant tube structures that enable very high levels of acoustic absorption in tiny spaces, for use in loudspeaker enclosures.
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