33results about How to "Accurate sound" patented technology

Head (1) of a golf club of the "wood" or "iron" type, having a wall forming the striking face (2), at least one wall adjacent the wall forming the striking face (2), namely in particular the wall of the sole (3), and which also comprises an elastic leaf (12) one end (13) of which is fixed to one of the walls (6) adjacent the wall forming the striking face (2), and the free other end (14) of which presses the preload against the back face (11) of the wall of the striking face (2).

A user terminal apparatus is provided. The user terminal apparatus includes: a flexible display including: a main area; and a sub area comprising a curved portion and extending from the main area to a side portion of the user terminal apparatus; a housing configured to enclose the flexible display; a sound output hole provided between the flexible display and the housing and configured to output a sound from a call function; and a sound input hole configured to receive an input sound.

The invention provides a user tone based method and device for voice synthesis. The method includes acquiring user audio data input by a user and determining user tone features of user audio data; synthesizing testing audio data corresponding to testing data according to the user tone features and the testing data and broadcasting and receiving a broadcasting adjustment command of the user for thetesting audio data; modifying the user tone features according to the broadcasting adjustment command and taking the modified user tone features as the final standard tone features; synthesizing target audio data corresponding to to-be-broadcasted data according to the standard tone features and the to-be-broadcasted data. According to the invention, the tone features of the user are extracted and the audio data is broadcasted based on tone features of the user, so that user sounding can be simulated and audio broadcasting truth can be improved. The tone features can be adjusted based on thebroadcasting adjusting command of the user, so that the finally broadcasted audio data can be more in line with features and demands of the user.

A user terminal apparatus is provided. The user terminal apparatus includes: a flexible display including: a main area; and a sub area comprising a curved portion and extending from the main area to a side portion of the user terminal apparatus; a housing configured to enclose the flexible display; a sound output hole provided between the flexible display and the housing and configured to output a sound from a call function; and a sound input hole configured to receive an input sound.

This invention is a reversible practice pad for drum practice. The reversible practice pad includes a planar base having at least one sloping base-riser projecting upwardly therefrom. Each base-riser includes a first part of a two-part fastening material affixed to a top surface of each base-riser. A planar platform includes at least one sloping platform-riser projecting downwardly therefrom. Each platform-riser includes a second part of the two-part fastening material affixed to a bottom surface of each platform-riser. The platform includes a cushioning pad fixed to a top surface thereof. The bottom surface of each platform-riser is brought into contact and fastened with the top surface of an associated base-riser. The base and platform can be selectively fixed together in two different orientations by rotating the platform. In one orientation, the platform and the base are substantially parallel. In an alternate orientation, the platform is sloped with respect to the base.

Provided is a high-pressure fuel supply pump comprising a normal-close, electromagnetic drive-type suction valve mechanism, adaptable to increased capacity and having little noise generation. The high-pressure fuel supply pump comprises a valve member having a sheet surface that comes in contact with a suction valve sheet, and a plunger rod positioned on the sheet surface-side of the valve member, and which operates the valve member by magnetic attraction force; and is provided with a protector arranged facing, across a gap, the opposite side surface to the sheet surface of the valve member, when the plunger rod is at full stroke in the valve opening direction for the valve member, and an anchor for plunger rod drive has come in contact with a stopper. As a result, the generation of a fluid dynamic force that impels the valve member in the valve closing direction towards the surface on the opposite side to the sheet surface of the valve member, as a result of fuel spilled from a pressurizing chamber, is reduced. Furthermore, the protector and the suction valve member do not come in contact, so noise generation does not increase. As a result, a high-pressure fuel supply pump can be provided that is capable of accurate flow rate control even if capacity is increased, and has little noise generation.

The invention relates to a hole-drawing machine for a saxophone body, which comprises a base, an electric cabinet, a tube clamping and rotating mechanism, an extrusion disc mechanism and an extrusion drag link mechanism, wherein the electric cabinet is mounted at the lateral back end of the base, the extrusion drag link mechanism is mounted on the base, the extrusion disc mechanism opposite to the extrusion drag link mechanism is mounted in the middle of the base below the extrusion drag link mechanism, and the tube clamping and rotating mechanism opposite to the extrusion disc mechanism is mounted at the front end of the base. In the invention, the tube clamping and rotating mechanism, the extrusion disc mechanism, a double-shaft milling and flattening mechanism and the extrusion drag link mechanism are all mounted on the base, the four mechanisms interact with each other to machine all sound holes in the saxophone body, and each sound hole is machined at high precision and is automatically subject to a cutting process after hole drawing, thereby effectively ensuring the height and the expansion of the sound hole wall, shortening the machining cycle, saving the cost, facilitating the subsequent machining procedure and enabling the saxophone to make more accurate and wonderful sound.

The invention relates to the technical field of piano playing, and provides a digital piano playing auxiliary system optimized by using a machine learning algorithm, the system can configure a piano music score of a to-be-played music of a player in a digital piano in advance, and determine demonstration playing information and accompaniment information for each pronunciation of the piano music score; carrying out accompaniment coupling on each pronunciation time of the accompaniment information and the pronunciation time of the demonstration playing information, and constructing an accompaniment coupling configuration model; performing playing coupling on the demonstration playing information and the pronunciation controllable parameters of the digital piano, and constructing a playing pronunciation coupling configuration model; setting playing auxiliary constraint conditions of the digital piano, determining playing auxiliary optimization data based on the accompaniment coupling configuration model and the playing pronunciation coupling configuration model, taking the playing auxiliary optimization data as sample parameters of a preset machine learning model for training, and generating a target machine learning model; the purpose of the present invention is to optimize playing music when a player performs playing.

The invention relates to the technical field of display equipment, in particular to an eye-protection computer monitor which comprises a frame, a base and a monitor body, wherein a display screen is fixedly mounted on the inner wall of the frame, a camera is arranged in the center of the upper side of the base surface of the frame, a power switch and a power light are arranged at the right part ofthe lower side of the base surface of the frame, a start menu / exit button, an acknowledgement button, an up-regulation button, a down-regulation button and an automatic adjustment button are arrangedon the lower edge of the right side of the frame from left to right sequentially, the monitor body is fixedly mounted at the upper part of the back surface of the frame, heat dissipation holes are formed in the two sides of the monitor body, a loudspeaker is arranged on the base surface of the monitor body, a mounting base is fixedly mounted in the center of the lower side of the back surface ofthe frame, and an extension-type support is fixedly mounted in the center of the mounting base. The eye-protection computer monitor is simple in structure and high in stability and practicability, canrelieve eyesight fatigue and protect the eyes, and has certain promotion values.

The invention discloses a high-frequency sound wave focuser. The high-frequency sound wave focuser comprises a cone core, a truncated cone core and a horn, wherein the diameter of the larger end of the truncated cone core is equal to the diameter of the bottom face of the cone core, and the larger end of the truncated cone core is connected with the bottom face of the cone core; the cone core is arranged in a cavity of the horn; and intervals are set between the horn and the cone core. The invention further provides a sound focusing unit. The sound focusing unit is composed of the high-frequency sound wave focuser and a coaxial loudspeaker. The high-frequency sound wave focuser is arranged on a high pitch outlet of the coaxial loudspeaker, and the horn is connected with the coaxial loudspeaker. According to the invention, frequency division between the high pitches and low pitches is available, interference of different frequencies are overcomed, and the timbre is accurate; high pitch and low pitch loudspeakers can be selected and matched freely to ensure a high fidelity effect of the timbre; and the output power and the sound pressure level are substantially promoted, and both the high-frequency sound wave focuser and the sound focusing unit are high in work efficiency.

The invention relates to the manufacture of a Chinese zither faceplate, in particular to a coating for a Chinese zither faceplate. The coating is prepared from, by weight, 20-32 parts of animal glue,3-8 parts of shellac, 12-18 parts of graphene powder, 1-6 parts of inorganic filler particle and 30-45 parts of 95% of ethanol solution; the thickness of a coating layer formed on the surface of the Chinese zither faceplate is 20-35 micrometers; the coating for the Chinese zither faceplate has the advantages that through the mutual cooperation among the animal glue, shellac, graphene powder and inorganic filler particle in the coating formula, not only can the surface rigidity and toughness of the Chinese zither faceplate be significantly improved, but also the Chinese zither faceplate can beprevented from being injured during use, and the rough surface formed by combing the facts that the coating layer is filled with the graphene powder and partial inorganic filler particles protrude thesurface of the coating layer ensures that the tone of the Chinese zither playing is accurate and the sound is natural and soft.

The invention discloses an intelligent auscultation device, and relates to the technical field of medical electronics. The intelligent auscultation device comprises a sound cavity, an earphone, an audio processing module, an electrocardiogram module, a microcontroller and a signal processing module, The sound cavity is connected with the signal processing module; the signal processing module is connected with the audio processing module; the electrocardiogram module is connected with the microcontroller; the microcontroller is connected with the audio processing module and a remote network medical system; and the audio processing module is connected with the earphone. While sounds of the heart, the lung, the ribs or the abdomen are collected through the sound cavity, ECG signals can be collected through the ECG module. The intelligent auscultation device can detect heart sounds and lung sounds at the same time and has the ECG signal detection function.

The invention provides a user tone based method and device for voice synthesis. The method includes acquiring user audio data input by a user and determining user tone features of user audio data; synthesizing testing audio data corresponding to testing data according to the user tone features and the testing data and broadcasting and receiving a broadcasting adjustment command of the user for thetesting audio data; modifying the user tone features according to the broadcasting adjustment command and taking the modified user tone features as the final standard tone features; synthesizing target audio data corresponding to to-be-broadcasted data according to the standard tone features and the to-be-broadcasted data. According to the invention, the tone features of the user are extracted and the audio data is broadcasted based on tone features of the user, so that user sounding can be simulated and audio broadcasting truth can be improved. The tone features can be adjusted based on thebroadcasting adjusting command of the user, so that the finally broadcasted audio data can be more in line with features and demands of the user.

The invention discloses a manipulator teaching platform and a control method applied to piano teaching. The teaching platform includes an angle sensor, a MIDI keyboard, a Bluetooth serial port module, a lower computer module, a host computer module, a DC motor, a piano teaching manipulator and a platform base; The sensor is used to detect the rotation angle information of the piano teaching manipulator in real time; the MIDI keyboard is used to collect the touch force information of the finger; the bluetooth serial port module is used for the communication between the lower computer module and the upper computer module; the DC motor is integrated with a reduction box and coding The platform base is used to assemble the DC motor and the piano teaching manipulator; the piano teaching manipulator adopts an under-actuated driving method, and drives the proximal finger joint rotating wheel through the metacarpophalangeal joint rotating wheel, and the proximal finger joint rotating wheel drives the distal joint rotating wheel. The transmission mode of the piano teaching manipulator is rope transmission, and the two ends of the rope are respectively connected to the driving wheel at the shaft end of the DC motor and the rotating wheel of the metacarpophalangeal joint.

The invention concerns a musical instrument with free reeds comprising, for each reed (12), an intake box (16) and a delivery box (25) connected by a passage (30) whereat the reed (12) is arranged, the check valves (18, 20) of each intake box (16) are coupled so that, when one of the valves is open, the other valve is closed, and inversely, and the check valves (27, 29) of each delivery box (25) are coupled so that, when one of the valves is open, the other valve is closed and inversely. Further, for each of the intake (16) and delivery (25) boxes associated with a reed (12), at least a closure element (13) is mounted, in a first position, to close at least an opening (17, 19, 26, 28) of an intake (16) or exhaust (25) box.

The present invention provides a high-pressure fuel supply pump equipped with a normally closed electromagnetically driven suction valve mechanism suitable for increasing the capacity and generating less sound. This high-pressure fuel supply pump equipped with an electromagnetically driven suction valve mechanism includes: a valve member having a valve seat surface abutting against a suction valve seat; and a plunger rod positioned on the valve seat surface side of the valve member and magnetically attracted When the plunger rod moves the entire stroke in the valve opening direction of the valve member and the armature for driving the plunger rod comes into contact with the stopper, the shield is in contact with the valve member. Surfaces on the opposite side to the valve seat surface are arranged to face each other with a gap therebetween. Accordingly, it is possible to reduce the fluid force that urges the valve member in the valve-closing direction on the surface of the valve member opposite to the valve seat surface due to the fuel overflowing from the pressurization chamber. In addition, since the shield and the suction valve member are not in contact, there is no increase in sound generation. Therefore, it is possible to provide a high-pressure fuel supply pump that can accurately control the flow rate and reduce the generation of sound even if the capacity is increased.

The invention discloses a television sound adjusting method. The method comprises the following steps: acquiring a mixed sound in an external environment of a television and an original sound of the television; according to the original sound, separating the mixed sound into a reflected sound of the television reflected from the external environment and an environmental sound in the external environment; and according to the sound volumes of the reflected sound and the environmental sound, adjusting the sound volume of a reverberated sound of the television and / or a low frequency sound. The invention further discloses the television. The television provided by the invention has a better sound effect, and can enable a user to hear a clear and accurate television sound.

An improved music fingering aid has at least one decal fittable overlaying the fingerboard and attachable to the neck of a stringed instrument. The decal includes string identifier indicators, a graduated position indicators series, and a plurality of interval demarcations that employ distinct colors for visual distinction. The indicators do not pair particular notes with particular colors. Instead the improved music fingering aid associates music theory with muscle memory to ensure sounded notes are played in near perfect pitch and, when playing ensemble, in tempered pitch. Contemplation and improved association of music theory is thereby enabled.

The invention discloses a string instrument tuning device. The string instrument tuning device comprises a tone tuning box, an opening is downwards formed in one side of the tone tuning box, the opening is provided with a plurality of groups of string plucking mechanisms, the string plucking mechanism comprises installation plates transversely arranged at the two ends of the opening, motors are installed on the installation plates, the motors are connected with rotating shafts, the rotating shafts are erected between the installation plates, impellers are arranged on the rotating shafts, plucking pieces are arranged on one sides of the impellers, and a controller and a sound receiver are arranged in the tone tuning box. According to the scheme, string fluctuation is achieved through cooperation of the motor impeller and the plectrum, the sound collector collects sound, the accuracy of the sound is recognized, and then workers are assisted in tuning, so that the working difficulty of the workers is reduced, meanwhile, the tone accuracy of the stringed musical instrument is guaranteed, and the yield is increased.

The invention discloses an artificial mouth noise reduction device, and the device is characterized in that the device comprises a shell used for containing an artificial mouth; an opening used for allowing sound waves generated by the artificial mouth to pass through is formed in the top of the shell, and the artificial mouth noise reduction device is further provided with a pressing assembly fixed to the shell and used for pressing the auscultation face of a stethoscope to the opening from the exterior of the shell. The invention further discloses an artificial nozzle device which comprises the artificial nozzle noise reduction device.

The invention discloses a topological horn type novel horn and a sound system. The novel horn comprises a box body, a pipeline and a vibration sound source. A first horn mouth and a second horn mouthare formed in the front end of the box body, and an open hole is formed in the rear end of the box body. The first end of the pipeline extends into the box body from the first horn mouth and is connected with the second horn mouth, and the second end of the pipeline is connected with the open pore; the vibration sound source is arranged at the joint of the second end of the pipeline and the rear end of the box body and used for generating surface vibration and air vibration according to audio signal excitation. According to the novel horn, the sound waves generated by the inner surface and theouter surface are in the same phase, and the power of the sound generated by the inner surface and the outer surface cannot offset each other, but can be well superposed together; moreover, the novelhorn not only has the surface vibration of the shell, but also has the vibration of air in the cavity; and therefore, the advantages of better directivity, smaller sound attenuation, higher sound fidelity and the like are achieved.