Extended duct with damping for improved speaker performance

摘要

An electronic audio device including an enclosure having an acoustic output opening and a speaker positioned within the enclosure. The speaker and the acoustic output opening are acoustically coupled by an acoustic output pathway. The acoustic output pathway includes a damping chamber to dampen a resonance frequency of the acoustic output pathway. The speaker is between the damping chamber and the acoustic output opening.

主权项

1. An electronic audio device comprising:
an enclosure and a base; the enclosure having a bottom wall and a front wall, wherein an acoustic output opening is formed in the bottom wall of the enclosure and the front wall of the enclosure includes a flat panel display; a speaker positioned within the enclosure, the speaker having a sound emitting surface positioned behind the flat panel display; an acoustic output duct connecting the speaker to the acoustic output opening in the bottom wall of the enclosure, the acoustic output duct including a planar face and a sidewall connected to the planar face, the acoustic output duct having a damping chamber at a position upstream from the speaker and an exit port at a position downstream from the speaker, the planar face extending from the damping chamber to the exit port; and wherein the acoustic output opening in the bottom wall of the enclosure is positioned at a distance from a bottom of the base and sound emitted from the acoustic output opening is directed toward a plane that is parallel to the bottom of the base.