Abstract: An open audio device includes an acoustic radiator that emits front-side acoustic radiation from its front side and emits rear-side acoustic radiation from its rear side, a front acoustic cavity that receives front-side acoustic radiation, and a rear acoustic cavity that receives rear-side acoustic radiation. At least one sound-emitting opening is acoustically coupled to the front acoustic cavity or the second acoustic cavity. The open audio device also includes a removable accessory that includes an acoustic transmission line that is acoustically coupled to the at least one sound-emitting opening when the removable accessory is attached to the open audio device.

Abstract: An open audio device includes an acoustic radiator that emits front-side acoustic radiation from its front side and emits rear-side acoustic radiation from its rear side, a front acoustic cavity that receives front-side acoustic radiation, and a rear acoustic cavity that receives rear-side acoustic radiation. At least one sound-emitting opening is acoustically coupled to the front acoustic cavity or the second acoustic cavity. The open audio device also includes a removable accessory that includes an acoustic transmission line that is acoustically coupled to the at least one sound-emitting opening when the removable accessory is attached to the open audio device.

Abstract: An open audio device includes a housing and an acoustic radiator in the housing and that emits front-side acoustic radiation from its front side and emits rear-side acoustic radiation from its rear side. A front acoustic cavity in the housing receives front-side acoustic radiation, wherein the housing defines a front sound-emitting opening. A rear acoustic cavity in the housing that receives rear-side acoustic radiation, wherein the housing defines a rear sound-emitting opening. A support structure is configured to carry the housing on a user's head such that the housing is held proximate an ear of the user with one of the front or rear sound-emitting openings anterior of and proximate the tragus of the ear. The housing comprises an inner end that is configured to be closest to the user's head. The one of the front or rear sound-emitting openings that is anterior of and proximate the tragus of the ear lies at an angle to the inner end of the housing.

Abstract: An open audio device includes a housing and an acoustic radiator in the housing and that emits front-side acoustic radiation from its front side and emits rear-side acoustic radiation from its rear side. A front acoustic cavity in the housing receives front-side acoustic radiation, wherein the housing defines a front sound-emitting opening. A rear acoustic cavity in the housing that receives rear-side acoustic radiation, wherein the housing defines a rear sound-emitting opening. A support structure is configured to carry the housing on a user's head such that the housing is held proximate an ear of the user with one of the front or rear sound-emitting openings anterior of and proximate the tragus of the ear. The housing comprises an inner end that is configured to be closest to the user's head. The one of the front or rear sound-emitting openings that is anterior of and proximate the tragus of the ear lies at an angle to the inner end of the housing.

Abstract: An audio device with a body configured to be worn on or abutting an outer ear of a user. The body comprises an upper curved portion that is configured to be located proximate the upper portion of the outer ear helix and is relatively more compliant about a vertical axis and is less compliant about a horizontal axis. An acoustic module is coupled to the upper curved portion of the body. The acoustic module is configured to locate a sound-emitting opening anteriorly of and proximate the user's ear canal opening when the body is worn on or abutting the outer ear of the user.

Abstract: An audio device with a body configured to be worn on or abutting an outer ear of a user. The body comprises an upper curved portion that is configured to be located proximate the upper portion of the outer ear helix and is relatively more compliant about a vertical axis and is less compliant about a horizontal axis. An acoustic module is coupled to the upper curved portion of the body. The acoustic module is configured to locate a sound-emitting opening anteriorly of and proximate the user's ear canal opening when the body is worn on or abutting the outer ear of the user.

Abstract: A flexible waveguide band is provided for that may be worn by a user around their neck, for example. The flexible waveguide band includes a spine, such as a pliable rod; a plurality of vertebrae mounted on the spine, with each vertebra including at least one waveguide channel guide; and an encapsulating potting material. The flexible waveguide band may also be attached to an acoustic pod, including an acoustic driver that may radiate sound waves into said waveguide channels and exit via a sound outlet opening in the flexible band.

Abstract: A flexible waveguide band is provided for that may be worn by a user around their neck, for example. The flexible waveguide band includes a spine, such as a pliable rod; a plurality of vertebrae mounted on the spine, with each vertebra including at least one waveguide channel guide; and an encapsulating potting material. The flexible waveguide band may also be attached to an acoustic pod, including an acoustic driver that may radiate sound waves into said waveguide channels and exit via a sound outlet opening in the flexible band.