Transmission line loudspeaker

摘要

An electro-acoustic driver including an acoustic waveguide includes an enclosure, an acoustic transmission line formed within the enclosure, and a plurality of acoustic transducers contained within the enclosure and disposed along a length of the acoustic transmission line. Each acoustic transducer is configured to emit acoustic energy directly into the acoustic transmission line at two separated locations along the length of the acoustic transmission line.

主权项

1. An acoustic waveguide system, comprising:
an enclosure having a closed end and an open end; an acoustic transmission line within the enclosure; and at least one electro-acoustic transducer disposed along a length of the acoustic transmission line to emit acoustic energy directly into the acoustic transmission line, and constructed and arranged at a location along the length of the acoustic transmission line where at least one resonant mode above a fundamental resonant mode has a highest pressure amplitude, and where acoustic energy output from each of a front side and a rear side of the at least one electro-acoustic transducer has a pressure amplitude that is symmetric about the highest pressure amplitude to prohibit exciting the at least one resonant mode above the fundamental resonant mode of the acoustic waveguide system.