Abstract: A tuning system enabled to be installed inside a drum percussion musical instrument is provided comprising a cylindrical drum shell having a batter head at a top, a bottom, and one or more internal tuning assemblies (ITAs) installed within an inner volume of the drum shell. Sound elements created by striking the batter head of the drum includes any one or more of pitch, resonance and amplitude and are altered, thereby providing tuning of the drum via manipulation of the one or more of the ITAs.

Abstract: According to an embodiment, there is provided a system and method for automatic AI-based song construction based on ideas of a user. It provides and benefits from a combination of expert knowledge resident in an expert engine which contains rules for a musically correct song generation and machine learning in an AI-based audio loop selection engine for the selection of fitting audio loops from a database of audio loops.

Abstract: Musical catalog amplification services that leverage or deploy a computer-based musical composition system are described. The computer-based musical composition system employs algorithms and, optionally, artificial intelligence to generate new music based on analyses of existing music. The new music may be wholly distinctive from, or may include musical variations of, the existing music. Rights in the new music generated by the computer-based musical composition system are granted to the rights holder(s) of the existing music. In this way, the musical catalog(s) of the rights holder(s) is/are amplified to include additional music assets. The computer-based musical composition system may be tuned so that the new music sounds more like, or less like, the existing music of the rights holder(s). Revenues generated from the new music are shared between the musical catalog amplification service provider and the rights holder(s).

Abstract: Hydraulic control comprising at least one hydraulic valve, each hydraulic valve comprising a hydraulic distributor and an electric actuator. The hydraulic distributor comprises a valve slide mounted with the ability to slide in a body comprising hydraulic ports. The electric actuator is fixed to the body of the hydraulic distributor and comprises an electric motor, an electronic circuit comprising a circuit board, a linear-displacement output member coupled to the control slide, reduction gearing comprising gear wheels coupling the motor to the output member, and a housing in which the electric motor, the electronic circuit and the reduction gearing are mounted.

Abstract: Described herein are percussion instruments and drums, such as snare drums. The drums include a throw-off device with a handle attached to a mount, which itself can be attached to a drum sidewall. One of the handle and the mount includes a magnet while the other includes a magnetic portion for magnetic engagement with the magnet. The magnetic engagement can be used to bias the handle toward or into a desired position.

Abstract: A wiper motor including an electrically conductive housing in which a speed reduction mechanism is housed, a motor body housed within a yoke joined to the housing and having a power supply terminal that contacts a commutator so as to supply electric power to a rotor, and having a brush that includes a ground terminal having one end in contact with the commutator and another end connected to an electrically conductive partitioning wall of the housing that covers an opening in the yoke, a power supply line configured to supply electric power to the power supply terminal via a noise-suppression choke coil, a ground line connected to the partitioning wall and to ground, and a capacitor connecting the power supply line with the ground line, such that a noise component flowing through the ground line passes through the choke coil.

Abstract: The present disclosure provides a stator of an electric rotating machine, a hairpin of a stator of an electric rotating machine, and a manufacturing method thereof. The stator for the electric rotating machine comprises a stator core, and a stator coil comprising hairpins. Each hairpin comprises a conductor, a film surrounding the conductor, a pair of insertion parts configured to be inserted into different slots, and a connection part connecting the insertion parts. The connection part comprises first and second bending parts bent with a predetermined radius of curvature such that the pair of insertion parts are insertable into different layers. The hairpins include first and second hairpins, each of the first and second hairpins configured to protrude from one end of the stator core by different protrusion lengths. Each of the first and second hairpins comprises a region configured to cross each other.

Abstract: A rotation mechanism includes a shaft portion, a bearing portion, a protruding portion, and a stopper. The bearing portion configured to rotate with respect to a predetermined axis as a center of rotation and configured to slide relative to an outer periphery of the shaft portion. The protruding portion protrudes from the shaft portion. The stopper is integrally formed the bearing portion. The stopper faces the protruding portion. A length of the protruding portion in a direction in which the protruding portion protrudes is larger than a distance from the center of rotation to a sliding portion where the bearing portion slides relative to the outer periphery of the shaft portion.

Abstract: An electronic percussion instrument capable of simulating a rendition of an acoustic percussion instrument is provided. The electronic percussion instrument includes a housing, a percussion surface attached to the housing, a pressure sensor disposed on a central section of the percussion surface on a side of the back surface and configured to detect pressing against the central section, a head vibration sensor disposed on a peripheral section of the percussion surface on the side of the back surface and configured to detect vibrations of the peripheral section, and a rim vibration sensor disposed at a position overlapping the head vibration sensor when seen in a plan view of the percussion surface and configured to detect vibrations of the housing.

Abstract: An electronic percussion instrument, a stroke detection device, and a stroke detection method which can improve stroke detection accuracy are provided. A thickness dimension (L2) of an upper cover part (5b1) is approximately constant from the inner circumferential side to the outer circumferential side in a region facing the upper surface of an outer circumferential part (4b3) of the frame bow part (4b) (a concave part formed according to a level difference between a bent part (4b2) and the outer circumferential part (4b3)). Accordingly, the entire upper cover part (5b1) is easily deformed such that it is bent when struck, and thus a protrusion part (5b3) can be securely pressed to an edge sensor (7b) according to deformation of the upper cover part (5b1). Therefore, the accuracy of detection of a stroke applied to the upper cover part (5b1) can be improved.

Abstract: Different aspects of the invention implement a sensor module that can be configured as a keyboard module or as a pedal module, allowing to connect a plurality of keyboard and pedal modules to assemble a configuration to the user's liking, such as, for example, the usual configuration of an 87-key piano together with two pedals. The sensor module transmits information about detected key or pedal strokes to a computer application for playback, either aural or visual. At the same time, the sensor module allows, both in the keyboard module and pedal module configuration, to transmit the feeling of playing a real piano.

Abstract: A drum pedal is characterized by including: a base part; a pair of support parts provided at the front side of the base part; a cam part that is axially coupled to the pair of support parts via a main shaft; a hitting part that is axially coupled to the pair of support parts via the main shaft and disposed to be adjacent to the cam part; a pedal part of which one end is coupled to the rear side of the base part and which is formed to extend in the direction of the front side of the base part; and a power transmission part that connects the cam part and the pedal part and rotates the main shaft and the cam part according to a load applied to the pedal part, wherein at least two different power transmission parts can be selectively coupled to the cam part.

Abstract: A generative composition system reduces existing musical artefacts to constituent elements termed “Form Atoms”. These Form Atoms may each be of varying length and have musical properties and associations that link together through Markov chains. To provide myriad new composition, a set of heuristics ensures that musical textures between concatenated musical sections follow a supplied and defined briefing narrative for the new composition whilst contiguous concatenated Form Atoms are also automatically selected to see that similarities in respective and identified attributes of musical textures for those musical sections are maintained to maintain good musical form. Within the composition work, chord spacing and control are practiced to maintain musical sense in the new composition and a primitive heuristics structure maintains pitch and permits key transformation.

Abstract: Disclosed is a learning model generation method executed by a computer, including: striking a percussion instrument with a striking member to emit a musical sound; and conducting machine learning upon receiving an input of the musical sound emitted from the percussion instrument, and generating, based on the machine learning, a learning model for outputting numerical values for setting musical performance parameters for an automatic musical performance of the percussion instrument that is struck when the striking member is driven.

Abstract: Embodiments may exclude portions of input data in order to improve the accuracy and explanatory quality of the output of machine learning models by disregarding parts of the input during the optimization process by masking them during backpropagation. For example, in an embodiment, a method may be implemented in a computer system comprising a processor, memory accessible by the processor, and computer program instructions stored in the memory and executable by the processor, the method may comprise receiving, at the computer system, input data and a machine learning model to generate a prediction based on the input data, generating, at the computer system, a mask indicating portions of the input data to be disregarded during backpropagation of the machine learning model, and modifying, at the computer system, the generated mask to improve the prediction of the machine learning model.

Abstract: Disclosed herein are various embodiments of haptic systems for digital musical instruments. In embodiments, the haptic systems comprise a shoulder rest that has been modified with haptic elements capable of generating a feedback signal to a user of a digital musical instrument.

Abstract: A guitar armrest designed to relieve the arm stress that a guitarist experiences in the Palmaris Longus muscle caused by the arm resting against the acoustic guitar's lower bout and soundboard side edge. It is made of a one piece injection-molded flexible rubber solid body, with a durometer so as to hold the weight of a guitarist's arm off of the front soundboard so as to prevent scratching and deadening of the sound projected therefrom. Replaceable suction cups extend through the body of the armrest such that their attachment buttons protrude from the armrest's top face and their suction disks protrude from the bottom face. The armrest is temporarily affixed to the lower bout of the guitar by suction means.

Abstract: A dual-conductor based electromechanical energy conversion system. The system includes an external force device, a moving object connecting frame, a moving object, a dual-conductor assembly and a platform connecting frame. The external force device is connected with the moving object through the moving object connecting frame. The dual-conductor assembly is arranged under the moving object in parallel. The dual-conductor assembly is connected with an external platform through the platform connecting frame. The moving object generates a relative motion with the dual-conductor assembly according to an external force. The dual-conductor assembly generates an alternating current according to an alternating magnetic field generated by the moving object.

Abstract: This disclosure relates generally to SYSTEM AND METHOD FOR DETERMINATION OF AIR ENTRAPMENT IN LADLES performing various refining operations at a secondary steel making stage of a ladle is challenging as it requires huge time and resources. The present subject matter discloses a technique for determination of air entrapment in a ladle. In an embodiment, method uses transient computational fluid dynamics modeling for simulating tapping process of liquid steel and tracking the interface with respect to time. By carrying out the parametric study for different geometrical and operational parameters, training and validation data is generated which is then used for training an artificial neural network model. The new ladle geometrical and operational input parameters for which output parameters are required are then used to predict the air entrapment.

Abstract: An electric compressor has an electric motor housed in a casing and that drives a compression part for compressing a refrigerant guided into the casing, and a connecting part accommodating container in which an external power line is guided from an exterior of the casing, and accommodating a connecting part for electrically connecting the external power line that supplies power to the electric motor and an internal power line guided from the electric motor. An insertion hole through which the internal power line is inserted is provided to the connecting part container; the connecting part container can be split with a splitting line for splitting the connecting part container and splitting the insertion hole; a first rubber ring for blocking off the insertion hole in a liquid-tight state is disposed inside the connecting part container; and the first rubber ring is sandwiched between split walls forming the insertion hole.