Acoustic device

Abstract

Acoustic devices, particularly musical instruments, having a soundboard formed from expanded polycarbonate, methods of manufacture of same, and the use of specific soundboards in the manufacture of acoustic devices.

Description

technical field [0001] The present invention relates to acoustic devices, in particular musical instruments having a new and improved soundboard, and methods of manufacture thereof, and the use of specific soundboards in the manufacture of acoustic devices. Background technique [0002] It has long been desired to utilize soundboards made of synthetic polymers rather than traditional wood for sound installations, especially for musical instruments such as guitars. Such devices are relatively simple and inexpensive to manufacture and reduce the production of devices with reproducible acoustic characteristics from a complex artisan-dependent effort to a controlled manufacturing process. [0003] There have been many proposals to produce musical instruments with soundboards of synthetic polymer materials, for example US4353862, US4364990, US4429608, US4969381, US4873907, US4188850, US4185534, US4213370, US4290336, US4334452, US5469769, US5642946 and 3US [0004] However, the u...

AI Technical Summary

Problems solved by technology

[0004] However, the usual problems with these instruments are that they have complex structures (such as having soundboards that require carbon fiber or glass fiber reinforcements), are expensive to manufacture, and the sound quality cannot be compared to the sound of instruments with traditional wooden soundboards

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