摘要:
An apparatus for assembling an aerophone instrument including an air conduit with first and second ends and segments to provide an air passage; air inlets on the air conduit to create an air entry point for compressed air to be delivered into the air passage, air outlets on the air conduit to create an air exit point for the release of compressed air along the air pathways, each defined by the position of an air inlet and the position of an air outlets along the air conduit. An air-filled object is positioned to be operatively associated with the air conduit. Compressed air is deliverable to the air conduit through the air inlets, causing an area of a wall of the air-filled object to vibrate and causing compressed air to vibrate in the air passage compressed air exits the air conduit from the air outlets.
摘要:
The invention relates to an acoustic product composed of composite material, such as a musical musical instrument, a part thereof, an acoustic equipment or like, which is manufactured from raw material comprising at least cellulose based substance and plastic based substance by means of a thermoplastic process, such as by pressing, compression molding, injection molding, extrusion, blow molding by heat, rotational molding and/or the like. The acoustic product has a material composition consisting of fiber substance (1) based on surface modified cellulose and plastic based substance (2), wherein the product has an essentially wood-like, but isotropic sound.
摘要:
One embodiment of the present application sets forth a method for simulating an audio output of a three-dimensional object that includes a resonant cavity. The method includes receiving an input mesh of a three-dimensional shape and a hole configuration. The input mesh has an outer surface and an internal cavity, and the hole configuration includes one or more holes. The method further includes adding the one or more holes to the three-dimensional shape based on the hole configuration to generate a modified three-dimensional shape having a resonant cavity. The resonant cavity includes the one or more holes and the internal cavity. The method further includes determining an air pressure coefficient matrix for the resonant cavity. The method further includes computing a minimum non-zero eigenvalue for the air pressure coefficient matrix. The method further includes determining an output resonant frequency for the resonant cavity based on the minimum non-zero eigenvalue.
摘要:
In one aspect, the present disclosure provides a method including rotating a rotatable surface with an object positioned thereon to a plurality of angular positions. The method also includes capturing, via an x-ray microtomography device at each of the plurality of angular positions, a tomograph of the object. The method also includes summing each tomograph of the object to create a three-dimensional image of the object. The method also includes using an additive manufacturing machine to create a three-dimensional replica of the object using the three-dimensional image of the object.
摘要:
Repair device for a dent is provided in metal bend tube part of musical instrument capable of effectively performing repair work in short time, not by conventional repair method using dent ball. In the device, a pressurizing device main body is also provided formed by connecting base member having an L shape in side view with first fulcrum at a base thereof and movable pressurizing member whose upper surface has convex arc-shaped surface in side view and has a second fulcrum at center part of lower surface, through a first and second arm. A wire, passes through the second arm and upright part of base member in axial direction, is provided, stopper is fastened to an end of wire which has passed through to outside of second arm, and wire passes through inside of curved metal tube and other end side of wire is connected to a foot pressing device.
摘要:
A musical instrument includes a resonating pipe having a first slot defined along a length of a longitudinal axis of the resonating pipe and a sliding rod that slides along a length of the first slot and closes the first slot such that the sliding rod selectively covers and provides an air seal to the first slot, such that a pitch of sound produced varies according to a length of closure of the first slot. A mouthpiece is coupled to the resonating pipe to enable the player to create a resonating column of air in the resonating pipe and control the pitch of the instrument by controlling the coverage of the sliding rod over the first slot. A composite musical instrument may include the wind instrument combined with a stringed instrument.
摘要:
A harmonica with a tube plate that provides production of sweeter, clearer notes with a minimum of skill. The tube plate has a plurality of tubes and sits over the reeds and the comb under the cover plate, a tube coupled with each air chamber in the comb. The tubes form tunnels with the air chambers, enhancing reverberation and separating the sound waves emanating from the reed in each chamber. The tube plate can be added to a conventional harmonica. The harmonica has a plurality of reed units, each reed in a separate unit. Each reed unit is individually replaced when a reed requires replacement or when modification of the harmonica key is desired. The reed units can replace a reed plate in a conventional harmonica.
摘要:
A harmonica with a tube plate that provides production of sweeter, clearer notes with a minimum of skill. The tube plate has a plurality of tubes and sits over the reeds and the comb under the cover plate, a tube coupled with each air chamber in the comb. The tubes form tunnels with the air chambers, enhancing reverberation and separating the sound waves emanating from the reed in each chamber. The tube plate can be added to a conventional harmonica. The harmonica has a plurality of reed units, each reed in a separate unit. Each reed unit is individually replaced when a reed requires replacement or when modification of the harmonica key is desired. The reed units can replace a reed plate in a conventional harmonica.
摘要:
A musical instrument tuning device includes a tuning sleeve and a tuning collar threadingly engaged to the tuning sleeve. The apparatus is mountable onto a first portion of a musical instrument which also has a second portion, the second portion being slidingly adjustable relative to the first portion to change the length of an air passage to tune that musical instrument. In one embodiment, the musical instrument tuning device is mounted on a neck portion of a saxophone to which a mouthpiece is typically engaged. Rotation of the tuning collar moves a saxophone mouthpiece relative to the neck portion and thereby enables a musician to quickly and precisely tune the saxophone.
摘要:
A key mechanism is specifically for a Saxophone which replaces the current Front F key (5) with a new key called Front F, altissimo G key (8, 8a). This key retains the functions of the standard Front F key (5) that allows a player to perform the altissimo F and E notes. The Altissimo G key (8a) is incorporated into the new Front F key (8) which allows the player to rapidly perform the difficult altissimo G note.