Abstract: A percussion instrument includes a body portion having a cylindrical shape. The body portion has an opening on a first side of the body portion in an axial direction to which a head is attached. The percussion instrument further includes a rim sensor configured to detect an impact on a rim portion of the body portion. The percussion instrument further includes a head sensor configured to detect an impact on the head. The percussion instrument further includes a support portion supporting the rim sensor and being located within the body portion while being spaced apart from a wall of the body portion when viewed from the axial direction. The support portion is also spaced apart from the head to be attached toward another side in the axial direction. The support portion faces the head in the axial direction. The percussion instrument further includes a plurality of connection portions.

Abstract: An information processing system includes a processor configured to execute a first acquisition unit, a second acquisition unit, a current status information generation unit, and a support processing unit. The first acquisition unit acquires a captured image obtained by photographing a musical instrument. The second acquisition unit acquires information on a consultation matter relating to a function of the musical instrument. The current status information generation unit generates, based on the captured image, current status information relating to a current status of the musical instrument. The current status information includes information relating to at least one or more of a configuration of the musical instrument, state of the musical instrument, or the installed location of the musical instrument. The support processing unit generates and outputs support information for resolving the consultation matter based on information on the consultation matter and the current status information.

Abstract: A drumhead fastening device is used for attaching a drumhead to an open end of a shell. The drumhead fastening device includes a plurality of lugs. Each of the plurality of lugs includes a lug main body fixed to the shell and a lug nut attached to the lug main body. The drumhead fastening device further includes a plurality of lug bolts corresponding to the plurality of lugs, respectively. Each of the plurality of lug bolts is screw coupled with the lug nut of the corresponding lug. At least one lug of the plurality of lugs includes a fixed lug nut fixed immovably to the lug main body. At least one lug of the plurality of lugs includes a movable lug nut movably attached to the lug main body.

Abstract: A hit detection device that detects vibrations in an object includes a vibration transmission member and two vibration detection sensors. The vibration transmission member includes a contact portion in contact with the object, and deforms in response to the vibrations in the object. The sensors each detect deformation in each of two different portions of the vibration transmission member. The two portions of the vibration transmission member are arranged in a direction intersecting an alignment direction in which the object and the vibration transmission member are aligned.

Abstract: An information processing apparatus includes a first obtainer and a recommended information outputter. The first obtainer obtains configuration information and body information. The configuration information is regarding a configuration of a drumming instrument. The body information is regarding a body of a performer playing the drumming instrument. The recommended information outputter outputs recommended information based on the configuration information and the body information obtained by the first obtainer. The recommended information is regarding a setting for playing the drumming instrument and corresponds to the performer.

Abstract: A signal processor includes an image obtainer, an estimator, and an outputter. The image obtainer obtains a performance image including playing of a drum. The estimator estimates a degree of attention attracted by the playing of the drum included in the performance image by inputting the performance image into a learning model. The learning model has been subjected to machine learning to estimate the degree of attention based on a feature quantity related to the playing of the drum. The outputter outputs the degree of attention estimated by the estimator.

Abstract: A signal output device comprising a housing, a fastener that attaches the housing to an object that includes a portion to be struck, an arm section attached to the housing, an extension section extending from the arm section and configured to contact the portion to be struck, a first sensor that detects vibration transmitted to the arm section and outputs a vibration signal representing the vibration, a second sensor provided on the housing and that detects vibration transmitted to the housing, and an output terminal that outputs the vibration detected by at least one of the first sensor or the second sensor.

Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.

Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.

Abstract: A signal output device comprising a housing, a fastener that attaches the housing to an object that includes a portion to be struck, an arm section attached to the housing, an extension section extending from the arm section and configured to contact the portion to be struck, a first sensor that detects vibration transmitted to the arm section and outputs a vibration signal representing the vibration, a second sensor provided on the housing and that detects vibration transmitted to the housing, and an output terminal that outputs the vibration detected by at least one of the first sensor or the second sensor.

Abstract: A percussion instrument is provided that includes a shell, a head and a speaker. The shell has a wall portion and at least one opening. The head is attached to the shell and overlies the at least one opening of the shell. The speaker is provided inside of the shell and oriented to output sound having a main direction of propagation towards the wall portion of the shell and/or the at least one opening of the shell having the head according to an input signal.

Abstract: A sound pickup device includes: a housing; a mount portion via which the housing on an object constituting a portion of a musical instrument; a sound pickup including a plurality of the microphones respectively oriented in different directions; a first output configured to output a sound signal indicating a sound input to the sound pickup; and an installer configured to install the sound pickup on the housing such that each of the plurality of microphones is oriented away from the object when the housing is mounted on the object via the mount portion.

Abstract: A sound pickup device includes: a housing; a mount portion via which the housing is mounted on an object; a sound pickup including a microphone; a first output configured to output a sound signal indicating a sound input to the sound pickup; an installer configured to install the sound pickup on the housing; a sensor configured to detect a vibration transmitted to the housing; and a second output configured to output a vibration signal indicating the vibration detected by the sensor.

Abstract: A percussion instrument is provided that includes a shell, a head and a speaker. The shell has a wall portion and at least one opening. The head is attached to the shell and overlies the at least one opening of the shell. The speaker is provided inside of the shell and oriented to output sound having a main direction of propagation towards the wall portion of the shell and/or the at least one opening of the shell having the head according to an input signal.

Abstract: A sound pickup device includes: a housing; a mount portion via which the housing on an object constituting a portion of a musical instrument; a sound pickup including a plurality of the microphones respectively oriented in different directions; a first output configured to output a sound signal indicating a sound input to the sound pickup; and an installer configured to install the sound pickup on the housing such that each of the plurality of microphones is oriented away from the object when the housing is mounted on the object via the mount portion.

Abstract: A sound pickup device includes: a housing; a mount portion via which the housing is mounted on an object; a sound pickup including a microphone; a first output configured to output a sound signal indicating a sound input to the sound pickup; an installer configured to install the sound pickup on the housing; a sensor configured to detect a vibration transmitted to the housing; and a second output configured to output a vibration signal indicating the vibration detected by the sensor.

Abstract: Provided is a method for producing a nonaqueous-electrolyte battery. A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer 13 that is amorphous and formed by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer 23 that is amorphous and formed by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 are in contact with each other, to a heat treatment under application of a pressure to crystallize the solid-electrolyte layers 13 and 23.

Abstract: A traveling vehicle includes an obstacle sensor; a controller which causes the traveling vehicle to perform a first avoidance operation so as to avoid an obstacle according to a result of the detection of the obstacle; a memory unit configured to store position information indicating a position of the obstacle in a traveling path and avoidance amount information indicating an amount of avoidance in a lateral direction performed by the traveling vehicle in the first avoidance operation; wherein, when the obstacle sensor detects an obstacle at the position indicated by the position information at a point when the obstacle is within a first distance from the traveling vehicle, the controller causes the traveling vehicle to start a second avoidance operation, before the distance from the traveling vehicle to the obstacle reaches a second distance, so as to avoid the obstacle based on the avoidance amount information stored in the memory unit.

Abstract: A drum pad capable of providing an excellent percussion feeling and securely adhering a base portion to a body portion made of rubber. The drum pad has a rear-side clothlike material which is provided on a rear surface of the body portion and into which the rubber of the body portion is impregnated. The base portion is fixed to a rear surface of the rear-side clothlike material via a fixing layer made of pressure sensitive adhesive or adhesive and provided on the rear surface of the rear-side clothlike material.

Abstract: A traveling vehicle includes an obstacle sensor; a controller which causes the traveling vehicle to perform a first avoidance operation so as to avoid an obstacle according to a result of the detection of the obstacle; a memory unit configured to store position information indicating a position of the obstacle in a traveling path and avoidance amount information indicating an amount of avoidance in a lateral direction performed by the traveling vehicle in the first avoidance operation; wherein, when the obstacle sensor detects an obstacle at the position indicated by the position information at a point when the obstacle is within a first distance from the traveling vehicle, the controller causes the traveling vehicle to start a second avoidance operation, before the distance from the traveling vehicle to the obstacle reaches a second distance, so as to avoid the obstacle based on the avoidance amount information stored in the memory unit.