36 results about "Sound design" patented technology

A method and apparatus to reproduce stereo sound, which generates optimal stereo sound designed for individual auditory properties. The method includes generating a one or more virtual surround filters corresponding to each of a plurality of head-related transfer functions (HRTFs) classified according to one or more individual auditory properties, generating stereo sound for the one or more virtual surround filters, and selecting at least one from the one or more virtual surround filters, and reproducing the stereo sound based on a filter value of the selected at least one virtual surround filter.

The invention discloses an electric vehicle pedestrian warning sound design method. For people's different reactions to sounds of different frequency bands, a lot of sound samples are designed, a BP neural network prediction model optimized through a genetic algorithm is established by using sound quality objective psychoacoustic parameters and subjective evaluation results, the model can provide guidance for screening subsequent sound samples, the screening process of the sounds is simplified, and the cost is saved. According to the actual operation condition of a vehicle, a multi-condition intelligent control system is established, thus electric vehicle/hybrid electric vehicle can intelligently select suitable sounds and emit the sounds in different operation conditions, the magnification times of a gain circuit is intelligently selected according to the background noise volumes, and thus the emitted warning sound can reasonably warn pedestrians and do not cause the noise pollution of an environment. The invention also discloses an electric vehicle or hybrid electric vehicle pedestrian warning sound design method and a warning sound control system and a control method thereof.

A wearable cardiac defibrillator (“WCD”) system may include a support structure that a patient can wear, an energy storage module that can store an electrical charge, and a discharge circuit that can discharge the electrical charge through the patient so as to shock him or her, while the patient is wearing the support structure. Embodiments may actively take into account bystanders, both to protect them from an inadvertent shock, and also to enlist their help. In some embodiments the WCD system includes a speaker system that transmits a sound designed to assist a bystander to perform CPR. Optionally CPR chest compressions received by the patient can be further detected, and feedback can be given. In embodiments, a WCD system may include a user interface that can be controlled to output CPR prompts tailored to a skill level of the bystander.

The invention belongs to field of lens technology, and particularly relates to a high-definition fish-eye lens which comprises from the first lens to the sixth lens arranged in order from the object space to the image space. The first lens and the fourth lens are glass lenses while the third, fifth and sixth lens are plastic aspheric lenses. The first lens is a meniscus lens with negative focal power, the second lens is a biconcave lens with negative focal power or a meniscus lens with negative focal power, the third lens is a biconcave lens with positive focal power or a meniscus lens with positive focal power, the fourth lens is a biconcave lens with positive focal power, the fifth lens is a biconcave lens with negative focal power, the sixth lens is a biconcave lens with positive focal power. Compared with current technology, the high-definition fish-eye lens is capable of realizing small size and light weight for effective cost control. The corner relative illuminance reaches over 65% with the sound design of lens for guaranteeing the corner image quality. The high-definition fish-eye lens is capable of meeting the requirement of resolution day and night with supporting confocal image of visible light and infrared. The maintenance of resolution is ensured in the environment with the temperature ranges from -45 to +85 DEG C.

The invention relates to a Linux-based telephone system under a MID platform and an implementation method thereof. The telephone system has a simple overall structure, effectively prevents redundancy of the conventional telephone systems, is excellently compatible with networks of various systems, solves the separation of a protocol layer and an interface layer through a telephone service programmodule and records different atril dynamic link libraries according to different network systems; and the reliability of the program is ensured by adopting multithread and a thread lock in the processing of a message queue. Particularly, an RIL layer is adopted for a background program service unit, so that the interface extension of the telephone system in the future can be realized conveniently; full separation of a user interface (UI) and a server is realized; the customizing of the UI can be performed; minimal design of a database is adopted in storage; and an overall sound design architecture of the system is provided.

An apparatus that mimics the physical effects of riding in a motor vehicle comprising a base structure on which a child automobile seat may be mounted to sooth an occupying child is herein disclosed. A top platform is laterally and longitudinally motioned by bottom mounted motion generating motor assemblies by means of supporting springs. A standard child's automobile seat can be fastened with the use of an integral seat belt. The apparatus is controlled by a microprocessor-based control system, which activates the motors to reproduce a gentle rocking, bumping, swerving or other motion commonly experienced in a motor vehicle. Additionally, the apparatus comprises a sound system capable of producing soothing music and a plurality of sounds designed to mimic those heard in a motor vehicle.

A method and system are provided for allowing a sound designer to design and implement interactive soundscapes based on existing waveform audio files, MIDI files, or audio streams. This is accomplished by using a set of tools consisting of an authoring tool for creating specifications of interactive soundscapes visually without having to write complex code, and a graph builder object that recreates the authored soundscape and interacts with it in real-time according to its specification. To give non-programmers the ability to specify and test how a soundscape will interact with programmatic events and user input in an application, the following tools are also provided: an interface to construct a “control panel;” a graphical “trigger-condition-action” specification that defines what actions to take when input from the control panel or application interface is received; a preview mode that enables the sound designer to interact with the soundscape in the same way that the application will; and the ability to save the soundscape as a file that can be edited or used at run-time to recreate the soundscape. Once the interface between the soundscape and the application has been agreed to, the tools allow the sound designer to work independently of the programmer of the media application.

The invention relates to an active sound simulation device based on a Void-Kalman filter. The active sound simulation device comprises an FPGA active sound design module, an MCU control sound production module and a PC host computer; the FPGA active sound design module mainly using the Void-Kalman filter to extract the order signal of engine sound source, and the extracted order signal is downloaded to the MCU control module through an SPI interface in real time. At that same time, the FPGA active sound design module receives a parameter signal of the MCU control sound production module through the SPI interface; the MCU control sound production module is used for completing and controlling the real-time generation of the simulated engine sound according to the order signal extracted by the FPGA active sound design module. The PC host computer downloads the control data from the FPGA active sound design module, and requests and receives the data sent by the FPGA active sound design module. The device uses the Void-Kalman filter to extract the sound order signal, and the MCU master control module controls the sound generation to obtain sound rich in change, which can remind the pedestrian, reduce the safety hidden danger, and lets the driver feel the pleasure of driving.

The invention discloses an automobile key switch sound design method, which comprises the following steps: determining a switch sound quality perception dimension with relatively high subjective scoring stability to form a switch sound subjective evaluation scale final edition, cutting a switch sound sample, and carrying out psychoacoustics objective parameter analysis to select an objective evaluation parameter initial edition; evaluating the switch sound sample according to the switch sound quality perception dimension, and selecting a switch sound design reference sample; quantifying objective evaluation parameters of the reference sample under the corresponding switch sound quality perception dimension, and performing correlation analysis and correlation credibility judgment on the preliminary objective quantification parameters and subjective evaluation scores of the corresponding switch sound quality perception dimension to obtain a final switch sound design psychological acoustics objective evaluation parameter edition; and determining subjective evaluation and objective evaluation parameter requirements of the switch sound design. According to the invention, the automobileswitch sound is designed by establishing a subjective and objective evaluation parameter design target system of the automobile switch sound, and the development of the automobile key switch sound quality is realized.

This invention provides a device of adding background sound in the process of phone talking including a background on-line device and a calling end user exchanger and a tandem exchanger connected with it separately, said background on-line device is in the structure of customer end/server used for playing the background sound designed by a called user or recording talking. Said calling end exchanger has the SSP function and interconnects with an attached position memory in the network, the tandem exchanger is connected with the background on-line device by the exchange network.

A device for influencing an exhaust gas flow, in particular for controlling the sound emission in an exhaust branch of an engine, includes a closure member that is movably arranged in the exhaust gas flow. For example, the closure member comprises a flap driven by a motor to move the closure member in the exhaust gas flow. It is thus optionally possible to produce or influence pressure pulsations in the exhaust gas which lead to an audible sound emission. The device according to the invention provides for a so-called “sound design” of a combustion engine. The driving device (the drive motor and a force transmission member to the closure member) is equipped with an active cooling system.

The invention relates to a sound quality order equalization optimization and active sounding design method based on a genetic algorithm. Original engine order noise is used as the basis of sound synthesis. The roar degree index representing the acceleration force feeling and the motion feeling in the vehicle is used as an optimization target; the roar degree index calculation model is corrected bysubjective sound quality evaluation of multi-sample in-vehicle sound, the advantages of the genetic algorithm in the aspect of parallel search are considered, the order balance parameters and the subjective and objective roar degree indexes are input into the genetic algorithm optimization model, and therefore the optimal order matching parameter estimation is obtained. According to the method, atheoretical guidance framework can be provided for the design of active sound production, so that the sound environment in the vehicle can be customized and developed according to the requirements oftarget group customers, the brand identification degree of the vehicle model is improved, the design period is shortened, and a satisfactory sound quality effect is achieved.

The invention provides an earphone acoustic cavity structure. The structure comprises an earphone acoustic cavity, a loudspeaker is arranged in the earphone acoustic cavity, and the earphone cavity further comprises a middle toning cavity which is arranged in the earphone cavity and surrounds the side periphery of the loudspeaker; the middle toning cavity further comprises a vent hole and the sound frequency band is regulated by regulating the ventilation property of the vent hole. A small-volume cavity is formed around the loudspeaker by setting the middle toning cavity, and the sounds at different frequency bands are effectively enhanced or weakened by adjusting the air damping of the vent hole; the earphone can extremely and conveniently adjust the frequency band of 20-4000Hz; and the important is that the electronic circuit for setting a low-frequency filter and a balancer is reduced for the earphone, and a more simplified adjusting way is brought for the earphone sound design. The problem that multiple frequency bands cannot be adjusted in the way of matching and adjusting the electronic circuit or the loudspeaker is solved. The structure provided by the invention can allow more extensive material and size selection on the parts by a designer.

The invention discloses a multi-track sound mixing method for pedestrian warning sound of an electric vehicle. Sound mixing operation is performed on the sub-sound samples respectively arranged on a plurality of sound tracks; the method comprises the steps that a sound mixing signal is generated according to the specified matching coefficient of each audio track and a specified vehicle state matching coupling coefficient, wherein the sound mixing signal comprises the functions of all sub-sound sample signals at the same time, and sub-sound samples meet all requirements in GB/T 37153-2018. According to the multi-track sound mixing method provided by the invention, the pedestrian warning sound of the electric vehicle is realized through single-track sound design, vehicle state matching and multi-track sound mixing adjustment, the law and regulation requirements are met, the sound showing brand genes can be well fused, and the designed warning sound can be well matched with the vehicle state.

One or more embodiments of the present invention relate to implementation of a music-based strategy for reducing sound hypersensitivity and phonophobia. The method involves presentation of music modified through amplitude and frequency filtering based on individual audiometric profiles (including information on auditory thresholds and uncomfortable loudness levels), and with insertion of additional sounds designed to trigger and guide neuroplasticity. This modified music is presented over a specific duration (two 30-minute sessions per day, 5 days per week for 4 weeks) for the reduction of sound hypersensitivities. For the purposes of this invention, this music processing method applied over a specific duration (40 half hour sessions) is referred to as Advanced Auditory Processing Training (adAPT).

The invention discloses a method and system for providing an acoustic sound design for an electrified vehicle Acoustic Vehicle Alerting System (AVAS). The method minimizes annoyance from sound leaking into a vehicle compartment. Road and other functional vehicle made sounds (tread noise, fans, wind noise etc.) are used to create an alert sound that mimics these existing vehicle sounds and can be potentially masked, interiorly, by those same sounds. The sounds are recorded and thereafter shaped, amplified and broadcast by speaker(s) placed outside the interior cabin, i.e., one in an engine compartment and another at a rear of the vehicle, so that vulnerable road users can hear the approaching hybrid/electric vehicle. The sound meets jurisdictional requirements in accord with specified frequencies and sound levels. The result is an alert sound perceived as non-irritating and pleasant outside the vehicle, and unobtrusive and background inside the vehicle.

The invention relates to a music creation system based on an intelligent mobile terminal. The system comprises a nested kit module which is used for supporting the intelligent mobile terminal, a sensor module used for receiving a gesture control signal, an interface parameter control module which responds to a touch trigger signal and generates a first audio parameter control instruction, a sensorsignal analysis module used for analyzing the gesture control signal and generating a second audio parameter control instruction according to a preset sound design mapping relationship, an audio digital signal processing module which performs corresponding effect processing on an audio material to be processed according to the first audio parameter control instruction and the second audio parameter control instruction, and a sound mixing processing module used for carrying out sound mixing processing on the audio signal which has been subjected to effect processing and then outputting a processed audio signal. Compared with the prior art, the system has the advantages of being convenient and flexible, improving user experience and the like.