Abstract: An acoustical seal system that utilizes a sound absorbing material-based sound seal for the gap or flanking path between a closed door and the nearby surfaces (e.g., the door jam or frame and the floor). When the door is in a closed position, the acoustical seal system may leave a small gap around the door so that the door does not have to make contact with the surrounding structural components. The small gap is an air passage between the two adjacent rooms. The acoustical seal system includes a housing with one or more cavities. The housing is mounted on the sides of the door core or body or on the surrounding components such that the cavities face the small air gap when the door is in the closed position. The cavities are filled with sound-absorbing material, such as an acoustical foam, that is exposed to the air gap.

Abstract: An acoustical seal system that utilizes a sound absorbing material-based sound seal for the gap or flanking path between a closed door and the nearby surfaces (e.g., the door jam or frame and the floor). When the door is in a closed position, the acoustical seal system may leave a small gap around the door so that the door does not have to make contact with the surrounding structural components. The small gap is an air passage between the two adjacent rooms. The acoustical seal system includes a housing with one or more cavities. The housing is mounted on the sides of the door core or body or on the surrounding components such that the cavities face the small air gap when the door is in the closed position. The cavities are filled with sound-absorbing material, such as an acoustical foam, that is exposed to the air gap.

Abstract: An acoustical seal system that utilizes a sound absorbing material-based sound seal for the gap or flanking path between a closed door and the nearby surfaces (e.g., the door jam or frame and the floor). When the door is in a closed position, the acoustical seal system may leave a small gap around the door so that the door does not have to make contact with the surrounding structural components. The small gap is an air passage between the two adjacent rooms. The acoustical seal system includes a housing with one or more cavities. The housing is mounted on the sides of the door core or body or on the surrounding components such that the cavities face the small air gap when the door is in the closed position. The cavities are filled with sound-absorbing material, such as an acoustical foam, that is exposed to the air gap.

Abstract: An acoustical seal system that utilizes a sound absorbing material-based sound seal for the gap or flanking path between a closed door and the nearby surfaces (e.g., the door jam or frame and the floor). When the door is in a closed position, the acoustical seal system may leave a small gap around the door so that the door does not have to make contact with the surrounding structural components. The small gap is an air passage between the two adjacent rooms. The acoustical seal system includes a housing with one or more cavities. The housing is mounted on the sides of the door core or body or on the surrounding components such that the cavities face the small air gap when the door is in the closed position. The cavities are filled with sound-absorbing material, such as an acoustical foam, that is exposed to the air gap.

Abstract: An automated playback system for a wind musical instrument which reproduces the musical performance of the wind instrument with high fidelity. The system comprises a sounding body, a piston, a signal-driven actuation means, a signal playback means and a drive signal. In one or more embodiments, the sounding body has a shape related to a wind musical instrument and has a sleeve opening which houses a piston; an electro-dynamic actuation means motivates a piston using a unique armature structure; a signal playback means provides a drive signal related to a measurement of the internal air column acoustic pressure of a wind instrument while played by a human player. Embodiments of the invention provide a convincing reproduction of a live musical performance and can be used in situations ordinarily requiring a human performer, offering a distinct advantage.

Abstract: A lip-reed wind instrument composed substantially, or in part, of carbon fiber reinforced composite laminate and an associated method to fabricate the instrument. Carbon fiber reinforced composite laminate is used to construct the tubular sidewalls of the instrument and is beneficial to the musical character. The high stiffness and low density of carbon fiber reinforced composite laminate increases the frequency of the instrument's vibration mode shapes allowing a favorable cooperation with musical pitch. The result is an instrument having improved projection as well as a brilliant timbre. The associated fabrication method describes the specialized tooling and the techniques to construct the laminate features of the instrument. The construction methods together with the improvements result in an instrument of higher precision allowing consistent play qualities for instruments of like design.