28 results about "Piano playing" patented technology

The invention relates to the technical field of piano teaching and computers, discloses a multi-dimensional scoring auxiliary system and method in piano teaching, and aims to solve the problems that existing piano teaching is single in evaluation dimension, one-sided in data acquisition and lagged in feedback. According to the method, a five-dimensional scoring model covering rhythm, strength, timbre, posture and fingering is constructed by synchronously collecting a key triggering time sequence, an audio frequency spectrum, limb posture and finger joint tracks, and quantitative scores are output through time alignment, feature extraction and neural network fusion calculation. The system comprises a key sensing module, an audio acquisition module, a posture capture module, a score calculation module and an AR visual feedback module, and supports teaching suggestion generation, historical trend analysis, difficulty self-adaption and multi-person comparison functions. Through multi-modal data closed-loop evaluation and intelligent intervention, the teaching accuracy and individuation level are remarkably improved, and scientific quantification and efficient improvement of the piano playing ability are achieved.

The invention belongs to the technical field of multi-modal generation and audio and video synthesis, and relates to a piano playing audio and video joint generation model based on multi-modal MIDI guidance, and the overall structure of the piano playing audio and video joint generation model comprises three core modules: an MIDI to gesture (MIDI-to-Pose) module; a gesture-to-video (Pose-to-Video) generation module is used for generating a gesture (Pose-to-Video); the invention relates to a symbol-to-audio (Symbolic-to-Audio) generation module. The model provided by the invention can be applied to music education, virtual playing, music generation explaining, performance analysis and other scenes. According to the invention, the generated hand action, key knocking and piano sound are strictly aligned in time and semantics, and the real, synchronous and physically consistent piano playing video generation is realized.

The invention relates to the technical field of piano playing action analysis, and discloses a piano concert practice matching and analysis method, device and equipment and a storage medium. Physical energy input reflected by hammer impact speed is used as a force anchor point without depending on an audio signal; the motion organization reflected by the hand posture is used as a disambiguation basis, rhythm robust re-parameterization is realized by utilizing an accumulated energy progress axis, and matching and alignment models of energy and motion gating, monotonous alignment constraint and physical consistency constraint are introduced in a matched manner, so that the matching and alignment stability of exercise segments under the mute exercise condition is remarkably improved, and the exercise efficiency is improved. And meanwhile, a concert practice analysis result with interpretability on force organization and action organization can be output. Therefore, through scientific quantification of the playing technique, the problems that in a mute practice scene, a traditional method cannot reliably complete matching and alignment of the concerted practice units, and it is difficult to output a force and action concerted technique analysis result are solved.

The utility model discloses a piano playing posture auxiliary correcting device, and belongs to the technical field of posture auxiliary correcting devices.The correcting device comprises a stool body and a soft cushion arranged on the stool body, and a plurality of supporting legs are arranged at the lower end of the stool body at equal intervals; the stool body is provided with an adjusting assembly for adjusting and a correcting mechanism arranged on the adjusting assembly, and the correcting mechanism comprises a mounting block mounted on the adjusting assembly and a main rod oppositely arranged on the mounting block; the mounting block is arranged on the rotating wheel, the sleeve base rotationally connected to the mounting block is matched with the main rod, the fixing sleeve, the auxiliary rod and the chest supporting plate, after the mounting block moves to the position close to the piano, the sleeve base is rotated upwards by 90 degrees, and then the chest supporting plate is rotated to the position horizontal to the chest of a child. Active correction is provided for the chest of the child through the chest supporting plate, and the humpback condition in the exercise process is avoided.

The invention belongs to the technical field of educational appliances, and particularly relates to a piano playing posture auxiliary corrector which specifically comprises a lifting supporting mechanism, a seat plate, a supporting cushion mechanism, a leg supporting mechanism, a side supporting mechanism, a swing mechanism, an elbow supporting mechanism and a sitting posture detection mechanism. The cushion supporting mechanism is fixedly mounted above the seat plate, and an adjusting controller for controlling the lifting supporting mechanism, the cushion supporting mechanism and the leg supporting mechanism is fixedly mounted on the side face of the lifting supporting mechanism. Shoulder movement changes of a learner are monitored through the sitting posture detection mechanism, torque rotating shafts on the two sides are pulled when the upper limbs swing in the playing process, the movement state of the upper limbs is detected through the number of rotation turns, the speed and the direction of a rotation angle sensor, and when irregular postures such as unknown stooping and humpback occur, the posture of the learner can be corrected. A player is prompted to correct in time, a correct playing posture is kept, and a correct posture memory is formed.

The present application relates to the technical field of piano playing action analysis, and discloses a piano concerto practice matching and analysis method, device, equipment and storage medium, wherein physical energy input reflected by hammer impact speed is taken as a dynamic anchor point without relying on an audio signal, action organization reflected by a hand posture is taken as a disambiguation basis, rhythm robust reparameterization is realized by using an accumulated energy progress axis, a matching alignment model with energy and action gating, monotonic alignment constraint and physical consistency constraint is introduced, and the matching and alignment stability of practice segments under a mute practice condition is significantly improved, and meanwhile, a concerto practice analysis result with explainability for dynamic organization and action organization can be output. Therefore, the present application solves the problem that a traditional method cannot reliably complete concerto practice unit matching and alignment under a mute practice scene and cannot output dynamic and action collaborative skill analysis results by scientifically quantifying playing skills.

To provide a piano playing support tool that enables anyone to easily play the piano. SOLUTION: A staff for right-hand performance showing note names ("Do," "Re," "Mi," "Fa," "So," "La," "Si") and the right-hand numbers corresponding to those note names is printed on the music sheet 11. Also, a staff for left-hand performance is printed below the staff for right-hand performance on the music sheet 11, showing note names and the left-hand numbers corresponding to those note names.

Provided herein are wearable devices which serve as joint training units, method of using the joint training units, and methods of making joint training units. The present disclosure provides joint training units to assist in training a person to adopt the correct hand or finger positioning during an activity. For example, these wearable training units can be used to encourage proper hand and finger positioning while a person is playing piano. Such training units train a subject to maintain proper hand or finger positioning in a manner which is superior to the existing training methods or devices, which provide reduced flexibility and convenience relative to those of the present disclosure.

The present application relates to the field of voice analysis, and particularly relates to a piano playing video generation method and device, computer equipment and storage medium. The method comprises: obtaining audio stream data; inputting the audio stream data into an audio encoder for encoding processing to obtain audio encoding; performing code conversion on the audio encoding through a piano video code conversion model to obtain a piano video code thin sequence; performing decoding processing on the piano video code thin sequence through a piano video code thin decoder to obtain piano video stream data; the piano video stream data refers to a video stream of a hand playing music corresponding to the audio encoding on a piano; and the piano video stream data and the audio stream data are merged to obtain a piano playing video. The present application converts the audio stream data into video stream data with a picture of a hand playing a piano, and finally generates a video containing both audio and a hand playing the audio on a piano, so that the video effect and quality are better, and user experience is improved.

The invention relates to the technical field of intelligent education, in particular to an AI auxiliary training system for piano playing skill and style analysis, which comprises a multi-modal data synchronization module, an acoustic feature extraction module, a kinematics feature extraction module, a multi-modal feature alignment module, a style matching and deviation analysis module and a personalized training scheme generation module. Performing space-time registration on the audio data and the image data of the piano user to obtain time sequence data; performing high-resolution sound spectrum representation on the playing audio stream to obtain an acoustic skill feature matrix; performing kinematic dynamics reconstruction on the time series data to obtain a kinematic state tensor; performing cross-modal confrontation alignment on the acoustic skill feature matrix and the kinematic state tensor to obtain a composite playing feature tensor; mapping the composite playing feature tensor into a playing style feature library to obtain skill deviation data; and performing directional optimization on the playing style feature library to obtain a personalized correction training scheme. The piano skill improvement efficiency can be improved.

This application relates to the field of piano teaching technology, and more particularly to a method for detecting the playing of an acoustic piano based on photoelectric information. It includes: installing sensors; sampling a reference playing process using the sensors to obtain a set of photoelectric reference signals; performing intensity and rhythm analysis on each photoelectric reference signal to obtain the photoelectric reference signal analysis results and establishing a playing detection model; sampling the actual playing process using the sensors to obtain a set of actual photoelectric signals; inputting the actual photoelectric signal set into the playing detection model, which uses the photoelectric reference signal set as the detection basis to perform intensity and rhythm detection on each actual photoelectric signal in the actual photoelectric signal set, and outputting the timing-based detection results of the piano keys during the playing process. The playing detection model of this application detects whether the piano keys were pressed accurately, and the intensity and rhythm of the corresponding actual photoelectric signals after the keys were pressed, thereby achieving comprehensive detection.

The embodiment of the invention provides a method and device for obtaining an operation motion path of a robot, and the method comprises the steps: determining the expected sinking amount of an end effector according to the kinematics data of a mechanical arm and the dynamics data of the end effector, and determining the sinking displacement constraint amount applied in the vertical direction according to the expected sinking amount; the vertical direction is perpendicular to the plane of the guitar body. Determining a collision risk area of the robotic arm and a piano body structure of the piano, and determining an obstacle avoidance path according to the collision risk area; and determining an operation motion path of the robot according to the displacement constraint quantity and the obstacle avoidance path. According to the method, the sinkage of the end effector is predicted through the kinematics data of the mechanical arm and the dynamics data of the end effector, when the operation motion path is planned, the obstacle avoidance path determined through the collision risk area of the mechanical arm and the piano body structure is comprehensively considered, the collision interference of the mechanical arm and the piano body can be reduced, and the working efficiency is improved. And the misoperation probability in piano playing is further reduced.

The invention relates to the field of piano music score accessories, in particular to a folding music score fixing device for piano playing, which comprises a piano music score self-page-turning assembly, and a music score fixing assembly is detachably connected to the front end of the piano music score self-page-turning assembly. The reset spring drives the extension plate to be pushed out to complete unfolding, the base is pushed to reset during folding, rapid operation can be achieved, and the folding device is compact and easy to carry after being folded; the automatic page turning needs to be performed after being unfolded to fix the music score without turning, the music score to be turned is fixed on the two L-shaped brackets and is realized by driving the brackets to turn through the driving mechanism, manual page turning is not needed, continuous playing is ensured, magnetic attraction fixation is stable, and the music score is adaptive to multiple pages of tracks; the angle of the adjustable anti-scratching adsorption device is adjusted through the angle adjusting shaft and the bendable component, the rotary knob is rotated to enable the adjustable anti-scratching adsorption device to be tightly adsorbed to the piano after the position of the suction cup is adjusted, multi-angle adjustment can be achieved to meet the requirement, scratching is prevented, and adsorption is stable.

The present application relates to a piano gesture recognition method for complex scenes and electronic equipment, the method comprises the following steps: using a YOLO model to identify the piano and gesture positions in a piano playing image, and generating a piano bounding box and a gesture bounding box respectively; in each bounding box, using a SAM model to extract the edges of the gesture and the piano, and segmenting the gesture area and the piano area, thereby screening effective gestures; using a key point detection algorithm to obtain a key point set on each effective gesture and a feature matrix of the key points, and constructing a graph structure; based on the graph and the gesture area data of the effective gestures respectively, obtaining local features and global features of the gestures; splicing the local features and the global features of the gestures to obtain final gesture features, and classifying the final gesture features to obtain a predicted label. Compared with the prior art, the present application has the advantages of screening effective gestures, improving the accuracy and reliability of gesture recognition, etc.

1. The name of the designed product: piano stool. 2. The use of the designed product: a seat for a person playing a piano. 3. The design points of the designed product: the combination of shape, pattern and color. 4. The picture or photo that best shows the design points: perspective view. 5. The design contains color.

The invention discloses a method for identifying piano playing fingering, and relates to the technical field of piano playing identification. The method for identifying the piano playing fingering comprises the steps of capturing a hand action path, the length and the weight of a touch key when a piano beginner plays the piano, comparing the hand action path and the length and the weight of the touch key with a pre-stored image of a music score, combining captured sound with a digital image on a display screen, identifying the time of a difference point, calling hand actions in the pre-stored image at the time, and identifying the piano playing fingering. And distinguishing the piano playing fingering. Through cooperation of a camera vision algorithm and a key pressure sensor, hand key point coordinates, key touch force and time length data are synchronously collected, comprehensive monitoring of hand displacement continuity and pressure change rate is achieved, abstract fingering errors are converted into visual chromaticity differences and numerical indexes, and whether the piano playing action is correct or not is visually felt.

The utility model discloses an arm lifting and falling trainer for piano playing, which relates to the technical related field of piano auxiliary exercise equipment and structurally comprises a trainer main body, a support device connected to the upper end face of the trainer main body in a sliding manner, and connecting plates fixedly connected to the edges of the left side and the right side of the rear end face of the trainer main body, when the training device is used, a user only needs to place a handle on the arc-shaped supporting plate, then the handle is fixed through the hook-and-loop fastener, when the arm ascends or descends in the piano playing process, the spring is driven to extrude or stretch, and the arm of the user can be trained through the elastic force of the spring; when the height of the arm needs to be adjusted, adjustment can be achieved only by rotating the rotary knob to drive the long plate and the arc-shaped supporting plate to move, and use is more convenient and simpler.

1. Name of the product in this design: Science Popularization Interactive Device (Piano Playing Robot). 2. Purpose of this design: For use in interactive exhibition installations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Since the bottom is an uncommon part, the bottom view is omitted.

The invention relates to the technical field of music equipment, in particular to a finger temperature adjusting device for piano playing, which comprises a clamping sleeve, a sleeve, a hanging rod and a hanging sleeve, the clamping sleeve comprises a lower clamping plate and an upper clamping plate, a lower positioning wheel is arranged on the lower clamping plate, an upper positioning wheel is arranged on the upper clamping plate, and the lower clamping plate and the upper clamping plate are in telescopic connection; the sleeve is arranged on the upper clamping plate, the hanging rod comprises two bent rods, one ends of the two bent rods are inserted into the sleeve, the other ends of the two bent rods are connected into a whole after being in butt joint, the bent rods are sleeved with the hanging sleeve, and a temperature regulation and control assembly is arranged below the hanging sleeve. The jacket and the positioning wheel in the device can adapt to different pianos, are stably mounted and can move, the hanging rod can realize multi-gear adjustment of height and length, and the device has three modes of powerful heating, static baking and pure air supply, can be flexibly switched, is modularly designed, is convenient to disassemble and assemble and good in stability, and does not influence playing.

The invention relates to the technical field of robot control and automatic playing, and discloses a piano robot playing feed-forward compensation double-loop control system and method based on PID. The system comprises an execution layer, a music score analysis module, an audio recording module, an outer ring controller, a feed-forward compensation module and an inner ring controller. The actual note interval is obtained through the audio recording module, the outer ring controller compares the actual note interval with the set interval of the music score, and the total time compensation amount is obtained through PID calculation. And the feed-forward compensation module automatically switches compensation modes according to the palm moving distance required by the music score. When the palm needs to move, a movement compensation mode is entered, and the expected movement time of the palm is adjusted by an inner ring controller PID (Proportion Integration Differentiation); when the palm does not need to move, a pressing compensation mode is entered, and the advanced pressing compensation amount of the fingers is adjusted. According to the invention, adaptive and sectional error control is realized, and the playing time sequence of the piano playing robot is effectively optimized.

The present application relates to the technical field of musical instrument playing auxiliary equipment, in particular to a music stand with page-turning function for piano playing, which comprises a placing rack and a foot-operated controller, the foot-operated controller is arranged below the placing rack, an adjusting device is installed on the surface of the placing rack, a trigger mechanism is arranged, when the adjusting mechanism just penetrates into the guide groove, the adjusting block is moved by the extrusion of the guide groove, the adjusting block extrudes the pressure sensor, at this time, the pressure sensor detects the pressure signal and feeds it back to the foot-operated controller, the foot-operated controller controls the servo motor to stop running according to the preset program, at this time, the adjusting mechanism only stays in the guide groove of the uppermost music holder, in the subsequent process of user control page turning, the adjusting mechanism can only drive the uppermost music holder to turn the page through the guide groove.

According to the control method of the calculator playing game, a complete and smooth control process is formed from information reading and key monitoring, playing mode triggering, music circulation switching, accurate playing feedback and playing restarting. According to the calculator, the function of playing games by the electronic organ is integrated while the basic function of the calculator is achieved, a user does not need to additionally purchase a special electronic organ or entertainment equipment, user expenditure is reduced, and inconvenience caused by carrying of multiple devices is avoided. By means of the design that music names are broadcasted through voice, music scores are synchronously displayed, music notes are eliminated through correct key pressing, and sound is avoided through wrong key pressing, the use experience of a user is improved, the basic use requirement and the entertainment requirement of the user for the calculator are considered, and the interestingness of equipment use is effectively enhanced.

The present application relates to the technical field of piano playing display, in particular to a playing error display method and system, wherein the method comprises: identifying wrong notes; when the number of wrong notes is greater than or equal to a preset merging threshold, the wrong notes are taken as merging objects; and a first display scheme is used to display the merging objects; wherein the first display scheme comprises the following steps: adding a moving effect to the merging objects, wherein the moving effect is determined according to moving display parameters; the moving display parameters include one or more of the following: object number, display height, display time length, and display color; the object number is determined according to the number of merging objects; and the merging objects are displayed according to the moving display parameters. The present application can avoid the frustration of users caused by error display to the greatest extent, and improve the integrity and efficiency of error display.

The application discloses a polyvinyl alcohol fabric hydrogel and a preparation method and application thereof, the polyvinyl alcohol fabric contains sodium chloride, glycerol and water, the fabric is coated by the polyvinyl alcohol hydrogel, the vinylon fabric is soaked in a sulfuric acid aqueous solution, the vinylon is reduced to polyvinyl alcohol, the polyvinyl alcohol fabric is obtained by washing with deionized water, the polyvinyl alcohol, glycerol, sodium chloride and deionized water are mixed, the impregnation solution is obtained by stirring, the polyvinyl alcohol fabric is added into the impregnation solution, and soaking is carried out until the polyvinyl alcohol fabric is fully swollen; the swollen polyvinyl alcohol fabric is placed between two layers of polypropylene films, the impregnation solution is squeezed out, the polyvinyl alcohol fabric hydrogel is obtained by subjecting the polyvinyl alcohol fabric to at least three freeze-thaw cycles, and the polyvinyl alcohol fabric hydrogel is applied as a strain sensor and a touch screen, and the touch screen is used for a computer for piano playing; the polyvinyl alcohol fabric hydrogel has the comprehensive performance of anti-freezing and moisturizing, anti-swelling, good mechanical properties, good strain sensing performance and touch screen function.

1. The name of the design product: piano stool (purple chess series). 2. The use of the design product: piano stool for playing piano. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible when used, omit the top view.

The utility model relates to piano playing device technical field, concretely relates to a driving device and piano automatic performance equipment with double coil electromagnet. The driving device includes interval arrangement's drive component and auxiliary assembly, and drive component includes first core and first coil module, and first coil module includes first support piece, first coil group to and the first sleeve of setting on both of them, and auxiliary assembly includes second core and second coil module, and second coil module includes second support piece, second coil group to and the second sleeve of setting on both of them, and first core is connected with second core through the connecting portion, and the length L1 of first core is greater than the length L2 of second core, and the length L3 of first coil group is greater than the length L4 of second coil group. The scheme can make the emission of piano in the performance process more fluent and improve the performance quality through the effective control of different stages of piano playing, especially the control of the sound stopping process of sound stopping cotton.

This invention discloses a real-time piano playing posture correction system based on hand shape recognition, specifically in the field of music-assisted teaching technology. It addresses the problems of joint positioning loss and inaccurate dynamic force assessment under occlusion during playing. First, a primary contour is generated by fusing visual flow entities and reflection edges to construct a key mapping mesh. Then, inverse kinematics deduction is performed using skeletal proportion constraints to reconstruct the three-dimensional skeleton sequence under occlusion. Next, focusing on the key sinking time window, the vertical displacement gradient of the metacarpophalangeal joints and the rate of change of interphalangeal joint angles are compared to quantify joint motion values ​​and construct a force deformation feature vector. The extracted feature vectors are input into a standardized database for comparison, and posture error labels are parsed out. Finally, graphic and synchronous speech correction signals are generated at rests or long notes in the electronic score, constructing a closed-loop correction system that does not interrupt the playing rhythm, providing scientific support for piano posture-assisted teaching.

The invention relates to the field of piano teaching, and discloses a sound recording device for piano teaching, which comprises a lifting driving mechanism positioned on a driving cylinder and a multi-angle driving mechanism, and is matched with a main fixing frame to enable piano teaching sound recording equipment to transversely rotate and adjust; the multi-angle driving mechanism is located on the main bearing and is used for enabling the piano teaching sound recording equipment to longitudinally rotate and adjust; and the sound data recording module is positioned on the multi-angle driving mechanism and is matched with the sound receiving element to receive various sound data of the piano. The height of the equipment can be automatically adjusted through a stabilizing disc additionally arranged at the bottom end of the polygonal clamping column and an additionally arranged lifting motor, it is ensured that the equipment can be adjusted to the optimal collecting position according to different recording requirements, and the recording height and the collecting angle can be automatically adjusted according to the specific requirements of piano playing; the acquisition of each note and tone can cover each tone area of the piano, and key note or tone details are prevented from being missed.