67 results about "Sound generation" patented technology

According to one aspect of the present invention, an electronic musical instrument generates a string tone signal output from one of the left and right channels based on an input excitation signal corresponding to a specified pitch, and generates a string tone signal output from the other of the left and right channels based on an accumulated signal obtained by accumulating the outputs of the first closed-loop circuit (36A-39A), the second closed-loop circuit (36B-39B), and the third closed-loop circuit (36D-39D) arranged corresponding to the pitch.

5 A system (100) being configured to activate one or more sub-systems (106) of a vehicle, the system (100) comprising: a prime mover (104), the prime mover (104) being configured to power the vehicle; a plurality of sensing units, wherein said plurality of sensing units being configured to measure real time state operating parameter(s) of said vehicle; said plurality of sensing 10 units sensing units being connected to one or more sub systems of the vehicle; a control unit, the control unit being configured to receive input(s) from the plurality of sensing units, wherein the control unit being configured to activate one or more sub systems based on said real time state operating parameter(s). 15

This application provides an ear-clip earphone, including a sound-generating unit, a battery pack, an adjustment component, and a connecting arm. The adjustment component has an adjustment space extending along a first direction and includes a first adjustment member connected to the sound-generating unit with no relative movement between them. The connecting arm connects the adjustment component and the battery pack. The first adjustment member can move relative to the connecting arm along the first direction through the adjustment space, thereby driving the sound-generating unit to move within the concha. The ear-clip earphone provided in this application allows the first adjustment member to move the sound-generating unit relative to the connecting arm, adjusting the relative position of the sound-generating unit within the concha. This allows the sound-generating unit to be positioned closer to or further away from the ear canal opening, thus enabling switching between open-ear sound generation away from the ear canal opening and semi-in-ear sound generation entering the ear canal opening. Simultaneously, it reduces sound leakage and noise reduction, adapts to different ear sizes, increases wearing comfort, and provides high adaptability.

The present application relates to the technical field of noise diagnosis, in particular to a method and device for identifying abnormal sound source applied to a vehicle transmission system, the method comprising: acquiring abnormal sound noise data, and confirming an abnormal sound generation period according to the abnormal sound noise data; acquiring transmission system vibration data, and performing time-frequency domain analysis on the transmission system vibration data and the abnormal sound noise data according to the abnormal sound generation period to obtain abnormal sound time domain data; the transmission system vibration data is obtained by vibration detection of the vehicle transmission system at a previous time; performing cross-correlation identification of the abnormal sound source according to the abnormal sound time domain data to obtain an abnormal sound source identification result; the abnormal sound source identification result is used to represent that the abnormal sound source is a gearbox and / or a drive axle. By considering the state of strong coupling connection between the gearbox and the drive axle in the vehicle transmission system, cross-correlation analysis is performed on the abnormal sound time domain data to identify the abnormal sound source, thereby improving the accuracy of identifying the abnormal sound source of the vehicle identification system.

The present disclosure provides a vibration apparatus and vehicular apparatus comprising the same. The vibration apparatus includes a first vibration generating module with a first vibrating portion, and a second vibration generating module spaced apart from the first vibration generating module and having a second vibrating portion different from the first vibrating portion. The first and second vibration generating modules may vibrate a vibration member to output sound or haptic feedback. By providing vibrating portions of different configurations, the vibration apparatus may improve directivity, acoustic characteristics, or sound pressure characteristics, and may reduce or minimize acoustic interference between multiple vibration sources. A vehicular apparatus may include a vibration member exposed to an indoor space and a sound generating apparatus that comprises the vibration apparatus to provide sound output and haptic functionality within the vehicle.

The present invention relates to a MEMS device (1) particularly for sound generation and / or sound detection, having a diaphragm (2) deflectable along a lifting axis (3), and a MEMS unit (7) comprising at least one cantilever (8) for generating and / or detecting lifting motion of the diaphragm (2), the cantilever being spaced apart from the diaphragm (2) along the lifting axis (3) to form a cavity (9) between the cantilever (8) and the diaphragm (2); a lifting structure (12) disposed in the cavity (9) and connected to the diaphragm (2); and a connecting element (14) movably connecting the cantilever (8) to the lifting structure (12). According to the invention, the connecting element (14) narrows and / or widens in at least one section in the direction toward the lifting structure (12) and / or has at least one notch (24, 25). The invention also relates to a MEMS unit for a corresponding MEMS device and an electronic device having a corresponding MEMS device.

This application relates to the technical field of experiential devices, and in particular to a safety simulation device for experiencing electric shock. The device includes a hollow gripping rod, inside which are arranged a power supply unit, a control unit, a sound generation unit, and a vibration unit. The outer wall of the gripping rod is provided with electrodes powered by the power supply unit. These electrodes are open-circuited, allowing connection to be established through human contact, thus generating an electric shock sensation at the point of contact. The device voltage is lower than the safe voltage for continuous contact that the human body can withstand. This solution, by incorporating open-circuit electrodes on the gripping rod and utilizing the human body as a conductor, generates an electric shock sensation while simultaneously controlling the voltage to ensure safety during the electric shock experience.

A musical instrument with novel configurations and performance techniques that can play notes and scale tones is disclosed. The musical instrument implements design and ergonomic changes to a Theremin's traditional configuration and use. The musical instrument includes an additional sound generation device such as an actuator that is operated to provide rhythm and tonal results. The musical instrument includes a pitch antenna that is configured in a horizontal position, which creates a different plane of reference with respect to performance motions employed for modifying the pitch. The musical instrument allows for a user to play notes and scale tones in a standing, seated, or ambulatory position. Improved playing interfaces, accessory items, and other characteristics for enhancing the playing of the musical instrument are provided.

This invention relates to a method and system for automatic program generation based on a program timeline and multi-agent collaboration. The method includes: a content generation agent generating a program script based on program parameters; a sound generation agent automatically matching broadcast timbre according to the program script to generate human voice audio and determine background music and sound effects; a program synthesis agent splicing and synthesizing the human voice audio, background music, and sound effects according to a preset order and dependency relationship based on the program timeline to obtain program audio and a timeline file; and a review agent reviewing the program audio, triggering the corresponding agent to perform targeted backtracking and partial regeneration of the corresponding type of smallest content unit based on review tags, and performing partial replacement in the timeline file while keeping other smallest content units unchanged, thus completing the automated generation of broadcast audio programs. This method can achieve high-efficiency, high-consistency, and high-compliance program production while reducing production costs.

The utility model relates to electric motor car technical field discloses a kind of electric motor car motor of middle placement, including protective shell, the inner bottom wall of protective shell is fixedly connected with backing plate, the utility model passes through polyurethane elastomer backing plate, absorbs the vibration energy generated when motor runs, play buffering effect, to reduce the amplitude of vibration transmission to external structure, effectively reduce the noise caused by vibration, simultaneously, sound insulation and noise reduction board of protective shell both sides, its internal fiber structure can produce multiple reflection and absorption to sound, further reduce noise propagation, the aperture of conical sound insulation hole on the surface of sound insulation and noise reduction board gradually decreases, so that sound is hindered and reflected by different aperture size when passing, effectively reduce the propagation intensity of sound, reach better sound insulation and noise reduction effect, significantly reduce the noise when electric motor car motor runs, avoid the adverse effects of traditional motor noise on riding comfort and surrounding living environment.

The earphone includes a sound generation component including a transducer; at least a portion of the sound generation component extending into a concha cavity of a user; and an ear hook including a first portion and a second portion, the second portion being connected to the first portion, and being connected to the sound generation component to place the sound generation component at a position near an ear canal without blocking an opening of the ear canal. The sound generation component has a first projection on a sagittal plane, and the auricle has a second projection on the sagittal plane. A centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction. A ratio of the first distance to a height of the second projection in the vertical axis direction may be in a range of 0.35-0.6.

The application discloses an active sound generation dynamic adjustment method and system for an electric vehicle, and relates to the technical field of intelligent vehicle acoustic control. The method integrates multi-modal sensing devices such as in-vehicle sound sensors, cameras, GPS, speed and acceleration sensors, etc., to obtain information such as in-vehicle background noise parameters, driver facial features, driving scenarios and vehicle driving states in real time, and intelligently matches the sound source most suitable for the current state from a multi-label sound source database based on the above sensing data. Then, frequency translation, sound pressure level adjustment, playback rhythm control and other algorithms are used to dynamically adjust the selected sound source, and finally control the loudspeaker to output prompt or accompanying sound suitable for the driving state. The application can provide personalized in-vehicle driving sound according to different driving scenarios and driver characteristics, realize dynamic adaptation of the active sound generation system to the scenario and the driver state, improve the driving experience and the in-vehicle acoustic emotional appeal, and enhance the driving safety.

The present invention provides a display device that can efficiently guide the sound emitted by the sound generation unit towards the front of the display unit. [Solution] The display device (1) comprises a housing (11) on which a display unit (12) is provided, the housing having sound output holes (18L, 18R) below the display unit and on the front side of the display unit, a sound generating unit (21) housed inside the housing that emits sound, a first inclined surface (32) provided facing the sound generating unit and sound output holes and directing the sound emitted by the sound generating unit toward the sound output holes, and a second inclined surface (33) provided at a position further from the sound output holes than the first inclined surface and at an angle higher than the first inclined surface relative to the sound output holes, and directing the sound emitted by the sound generating unit toward the sound output holes.

A method for generating sounds indicative of the operation of a motor vehicle with electric propulsion comprising: determining a characteristic signal relative to the detection of quantities indicative of an operation of first and second electric motors configured to rotate respective wheels aligned along an axis; generating a first sound signal having a first frequency content determined by a function of a frequency content of the characteristic signal; verifying an operating condition determined by a difference between first and second motor revolution numbers less than or equal to a threshold; emitting sounds reproducing the first sound signal when said operating condition is verified; or otherwise substituting the first sound signal with a second sound signal and emitting sounds reproducing the second sound signal. The second sound signal has a second frequency content based on the motor revolution numbers and is generated from a sound signal indicative of said operating condition.

The warning sign designed in this invention integrates passive optics (fluorescence), active color-changing (moisture-sensitive color-changing), and wind-driven sound generation mechanisms. It is technically highly feasible and aligns with the trend of geological disaster early warning evolving towards intelligence and automation. Its greatest advantage is that it is "unreliant on external power," relying entirely on natural physical and chemical reactions for power supply, thus ensuring high reliability and making it ideal for deployment in remote areas where power supply is difficult. Furthermore, by preparing a coating on the aluminum alloy surface to obtain a composite material as the substrate, the lifespan of the warning sign is significantly improved.

This sound generation device (20), which is used in a vehicle (10) and executes a sound generation program, comprises an energy sound generation unit (202). The energy sound generation unit (202) acquires a value pertaining to a remaining energy amount (Me) of the vehicle (10). In addition, the energy sound generation unit (202) generates a sound pertaining to the remaining energy amount (Me) by adjusting the amplitude, frequency, and production time of the sound on the basis of the value pertaining to the remaining energy amount (Me). Furthermore, the energy sound generation unit (202) produces the generated sound.

The present invention relates to a method for reducing a first pressure fluctuation in a fluid in a fluid-carrying element of a temperature control device for a directly position- or shape-sensitive or an indirectly position- or shape-sensitive element of a lithography system, comprising acquiring information associated with the first pressure fluctuation in the fluid-carrying element, determining, based on the acquired information, an optical power to be introduced into the fluid-carrying element in order to counteract the first pressure fluctuation, and introducing the determined optical power into the fluid in the fluid-carrying element in order to generate a cavitation bubble in the fluid, thereby generating a second pressure fluctuation in the fluid which counteracts the first pressure fluctuation.

The application discloses an automatic electronic folk music instrument control system combined with electricity and sound, which adopts an electricity and sound combined structure, and has the convenience and intelligence of electronic control while inheriting the timbre of traditional instruments. The core acoustic components of traditional instruments are retained and can be quickly replaced through a unified interface; the internal sound generation channel is guided to the external resonance cavity after being smoothly contracted, and good acoustic impedance matching can be realized with a small-caliber loudspeaker, so that the sound generation efficiency and sound quality are improved. The system adopts a three-finger eight-tone one-key octave simple fingering method, and the stepless tuning function is matched to realize the general fingering. The built-in intelligent music score and real sound source are used to automatically control the multi-dimensional signals of a blowing nozzle. Double-mode working can meet the professional performance requirements in the manual mode, and the automatic mode can realize complete melody performance only through the blowing nozzle, so that the effect of being able to sing is realized.

We provide the system. [Solution] A data processing means that receives video information from a monitoring system and analyzes the video information to detect abnormal behavior, Information generation means that generates a warning message based on abnormal behavior detected by the data processing means, A signal output means for outputting the warning message, Information communication means for notifying a management information terminal of the results of detecting the abnormal behavior, A sound generation means that generates an audio signal using the warning message and outputs it to a public address system in real time, A system that includes this.

Embodiments of the present application disclose a display module and a display device, and relate to the technical field of display. The display device comprises a display module, the display module comprises a display panel and a screen sound generation driving structure, the screen sound generation driving structure comprises a first electrode layer, an insulating barrier layer and a second electrode layer; the insulating barrier layer comprises a bending area corresponding to a bending part of the display panel and two non-bending areas respectively arranged on opposite sides of the bending area; a plurality of vibration cavities are arranged on the bending area and the non-bending area, and a first groove structure is further arranged on the bending area. Based on the technical scheme provided in the present application, the function of flexible screen sound generation can be realized, the first electrode layer and the second electrode layer can be prevented from directly contacting due to deformation and causing the screen sound generation driving structure to fail, vibration can be stably transmitted to the flexible screen, sound quality can be ensured, and folding and unfolding of the flexible screen are facilitated.

This invention relates to a full-range wideband loudspeaker and its full-range wideband sound generation method, comprising a sealed outer casing and a frame body. The frame body includes a base column, with mounting portions at both ends. Each mounting portion houses a first sound-generating unit coaxial with the base column, and the sound-generating ends of the two first sound-generating units are arranged facing each other to form a reverse sound generation structure. The two mounting portions, the base column, and the sealed outer casing enclose an annular side sound cavity, with multiple through holes circumferentially provided in the mounting portions. A second sound-generating unit is mounted on the sealed outer casing. The sound emitted by the two first sound-generating units sequentially enters the side sound cavity through the mounting portions and through the through holes, while the sound emitted by the second sound-generating unit directly enters the side sound cavity. The three sets of sound waves converge and couple within the side sound cavity to form a full-range sound wave, which is ultimately radiated laterally through the sound outlet. This invention achieves integrated coaxial support and lateral full-range wideband sound generation, offering advantages such as compact structure, high magnetic circuit efficiency, wide frequency response range, and ease of integration into ultra-thin devices.

This application relates to a real-time active sound synthesis method for electric vehicles based on vehicle dynamics parameters. The method involves real-time acquisition of motor speed, vehicle speed, throttle position, and torque; dynamic mapping and calculation of carrier frequency, modulation frequency, and modulation index; real-time generation of audio waveforms using a frequency modulation synthesis algorithm; and outputting external warning signals and internal feedback signals after spatial rendering. This method enables real-time changes in timbre based on driving operations, enhancing realism and safety, while reducing hardware costs.

An display unit and a display module are provided. The display unit including a display panel, a frame, a sound-production stimulation unit, and a supporting structure; the supporting structure is configured to support the sound-production stimulation unit; the back side of the display panel includes a central region and an edge region; the sound-production stimulation unit is in contact with the central region; the frame is configured to support the display panel; the frame includes a first sub-portion and a second sub-portion; and a first vibration isolation portion is provided between the first sub-portion and the display panel; a second vibration isolation portion is provided between the second sub-portion and the display panel.

This invention relates to the field of music teaching aids, specifically an adjustable-timbre percussion sound generator, comprising: a base, on which a rotating platform is mounted, and a support shaft passing through the rotating platform is fixed on the base; multiple sets of tuning forks arranged equidistantly on the inner side of the rotating platform; multiple sets of striking components installed between the support shaft and the rotating platform, each striking component including an energy storage structure and a trigger element, wherein a convex shaft on the energy storage structure cooperates with the trigger element, enabling the energy storage structure to strike the tuning forks when the rotating platform rotates at a certain angle; an elastic support structure connecting the striking components, which cooperates with a tension structure on the support shaft, enabling the striking components to strike the tuning forks after a certain displacement; and an adjustment component on the support shaft and connected to the striking components and the tension structure, wherein the adjustment component can change the position of the energy storage structure striking the tuning forks to achieve multi-mode sound generation.

A controller that controls a musical sound generation device has an acquisition unit that acquires gaze information of a user, a display control unit that dynamically displays a plurality of operating portions associated with control commands for the musical sound generation device on a display unit, and displays a pointer for selecting an operating portion on the display unit on the basis of the gaze information acquired by the acquisition unit, a determination unit that determines selection of an operating portion overlapping at least a part of the pointer among the plurality of operating portions, and a communication unit that transmits, to the musical sound generation device, information conforming to a MIDI standard corresponding to the operating portion of which selection has been determined by the determination unit.

Sound generation unit (1) for an acoustic warning system on a vehicle (1) for generating sound audible to persons in the vicinity of a vehicle (1), wherein the sound generation unit (2) comprises a loudspeaker (21). The sound generation unit (2) further comprises a horn unit (23) with a horn (230) which forms a sound channel for sound generated by the loudspeaker (21).

This invention relates to a dual-unit reverse coaxial loudspeaker and a dual-unit reverse coaxial sound generation method, comprising a frame body, two sets of sound generating units, and a sealed outer casing. The frame body is a one-piece molded structure, including a base column and mounting brackets at its upper and lower ends. The two sets of sound generating units are coaxially mounted with their sound-emitting ends facing each other in the receiving cavity of the mounting bracket, forming a reverse sound generation structure. The two mounting brackets, the base column, and the sealed outer casing form an annular side sound cavity. The receiving cavity is connected to the side sound cavity through a through hole on the mounting bracket. The sealed outer casing has a sound outlet. The sound emitted by the sound generating units enters the side sound cavity sequentially through the receiving cavity and the through hole and radiates outward from the sound outlet, forming a lateral sound generation path. This invention eliminates assembly errors and magnetic leakage through the one-piece molded frame, improving coaxiality and electroacoustic efficiency; the lateral sound generation path breaks through the traditional axial space limitations, which is beneficial for the thinning of the device; the design of the side sound cavity and exhaust port optimizes sound wave coupling and air pressure balance, significantly improving sound quality and acoustic performance.

This provides a new technology that allows for the tuning of stringed instruments. [Solution] A stringed instrument according to one embodiment of the present invention includes a plurality of strings including a first string, a soundboard, an exciter for vibrating the soundboard, a guide sound generation unit that generates a signal indicating a guide sound based on a first frequency determined in correspondence with the first string for a predetermined period of time, and a drive signal generation unit that generates a first drive signal for driving the exciter so that the guide sound is generated.