546results about How to "Improve the sound effect" patented technology

A system and method for noise cancellation is disclosed herein generally having at least one microphone, a processor, and a speaker array. The processor may contain an adaptive filtering feature, to separate desirable sound from undesirable sound. The undesirable sound may be suppressed by the processor by creating a canceling waveform and transmitting the canceling waveform to the user's head via a speaker array. The desirable sound may be enhanced by increasing the amplitude of the waveform and transmitting the amplified waveform to the user's head via a speaker array. The sound transmitted to the user's head by the system may be localized using an image tracking subsystem and speaker array. The image tracking system may track the actual visible image or alternatively a heat (e.g. infrared) image of the user's head.

The present disclosure relates to a display device for generating sound by directly vibrating a display panel thereof, which includes a display panel connected to a surface of the display panel and configured to display an image; and a sound generating actuator, which is fixed to a support structure of the display panel and attached to the display panel to directly vibrate the display panel. In the display device, the progressing direction of the sound coincides with the image output direction in the display device. Therefore, sound localization or sound output characteristics of the display device or set apparatus can be improved, and a separate speaker is not required, the mechanism of the set apparatus can be easily designed, and a thickness thereof can be easily reduced.

The apparatus comprises: multi speakers; multi speaker driving units for driving said multi speakers, which can respectively rotate; motion detection unit for detecting the motion of users of audio / video apparatus; and control unit for controlling said multi speaker driving units. The method for adjusting the position of the speaker comprises: sensing the current position; rotation it to the calculated optimized position; rotating speaker again.

The invention provides a method for generating an output indicative of acoustical sound transmission in a room. By using e.g. a point cloud representation of an acoustic environment, it is possible to calculate its acoustics from the interior information obtained from the depth camera. This approach is suitable e.g. for run-time applications since it is not based on an audible excitation that can disturb running audio. Also, the point-cloud model can be updated in real time according to the scene changes detected by depth-camera. This allows efficient acoustical simulation of dynamic, interactive environments. Although only geometrical information of a room is provided, high amount of surface details leaves possibility for implementation of material recognition algorithms that involve semantic mapping. This can provide information of reflective properties of surfaces or objects at a point level. Also, a high amount of details allows a good approximation of complex geometries, e.g. porous materials, and rough surfaces, thus a more natural simulation of wave phenomena like diffraction and scattering is possible.

A sound effect adjusting method and apparatus. The method comprises: detecting the number of connected sound boxes, an orientation angle of a sound box, and a distance between the sound box and an audience (S801); selecting a corresponding sound field model according to the number of connected sound boxes (S802); loading the distance of the audience and the orientation angle of the sound box according to the sound field model, to adjust a sound field transmission function (S803); and adjusting a digital audio signal according to the sound field transmission function, and outputting the adjusted digital audio signal (S804).

The invention discloses a direct drive type exciter and a screen sounding device. The exciter comprises a magnetic circuit system and a vibration system. The magnetic circuit system connected with thedevice is used for forming a magnetic gap. The vibration system consists of a coil, an elastic support member and a connecting member; the elastic support member includes an outer connecting portion,an inner connecting portion and an elastic portion arranged between the outer connecting portion and the inner connecting portion; a coil and a connecting element are fixed on the two surface of theinner connecting portion respectively; one end, far away from the inner connecting portion, of the coil is inserted into the magnetic gap; one end, far away from the inner connecting portion, of the connecting element is configured to connect a screen; and the outer connecting portion is fixed at a side magnetic circuit part.

The invention belongs to the field of automobile audio technology and particularly relates to a system and a method for automatically adjusting a sound effect mode of a vehicular audio system in an automobile. In order to solve the problem that through a traditional audio system, a user only can manually adjust different sound effect modes, the system for automatically adjusting the sound effect mode of the vehicular audio system comprises a passenger distribution recognition unit and an audio processing unit, wherein the passenger distribution recognition unit is used for recognizing position distribution information of passengers in the automobile; the audio processing unit can adjust the sound effect mode of the vehicular audio system according to the position distribution information of the passengers in the automobile; and the audio processing unit pre-establishes a corresponding relation between the sound effect mode of the vehicular audio system and the position distribution information of the passengers in the automobile. Through the technical scheme, the sound effect mode of the vehicular audio system is adjusted according to the position distribution information of the passengers in the automobile, the passengers in the automobile can hear an optimal sound effect without the need for manual adjustment by the user, and therefore user experience is greatly improved.

The invention discloses a method and system for enhancing sound effect when using virtual reality glasses. The method comprises following steps: when a user wears the virtual reality glasses to watch a video, detecting the rotating angular speed of the virtual reality glasses through a gyroscope sensor and detecting the rotating direction of the virtual reality glasses through a compass sensor; obtaining the angular speed data and the rotating direction data by a mobile terminal, wherein the angular speed data is detected by the gyroscope sensor, the rotating direction data is detected by the compass sensor, judging the rotating direction change of the virtual reality glasses; controlling the level change of the sound volume according to the direction change and correspondingly decreasing or increasing the sound of the left and right channels corresponding to the audio. According to the method for enhancing the sound effect by using the gyroscope sensor and the compass sensor provided by the invention, convenience is provided to the user.

The invention relates to a method and device for adjusting a sound effect, and belongs to the technical field of computers. The method comprises the steps of determining one or more frequency response adjustment points of a first audio file and the adjustment value of each frequency response adjustment point according to the current frequency response of the first audio file; according to the adjustment value of each frequency response adjustment point of the first audio file, adjusting each frequency response adjustment point of the first audio file to obtain a second audio file; comparing the phase of the second audio file and the phase of the first audio file to determine that when the phase of the second audio file changes relative to the phase of the first audio file, a third audio file obtained by adjusting the phase of the second audio file serves as the sound effect adjustment result of the first audio file. According to the method and device, the third audio file is obtained by adjusting the frequency response and the phase of an audio file to be played, the problem that when the first audio file to be adjusted is damaged, the played audio file is distorted is avoided, and the adjustment effect of the sound effect is better.

The invention discloses a sound effect processing method and apparatus. The method comprises the steps of acquiring a sound signal; determining the type of sound corresponding to the sound signal; and selecting a sound effect processing method corresponding to the type of sound for sound effect processing of the sound signal. The invention can be used for effectively improving effects of the sound effect processing.

A Vibration system part for a speaker device includes a woven fabric or a non-woven fabric made of basalt fiber produced by twist yarn or roving yarn being a continuous long-fiber. The vibration system part for the speaker device may be a diaphragm, a center cap, an edge or a damper, for example. In a preferred example, the woven fabric or the non-woven fabric is impregnated with thermosetting resin or thermoplastic resin. Additionally, a lamination member, such as paper, foam material, resin or a film, is preferably laminated (coated) on the woven fabric or the non-woven fabric. Thus, the vibration system parts for the speaker device, having excellent acoustic property and reliability, can be obtained at a low price.

A method for identifying and eliminating echo generated from far end voice in CDMA mobile phone includes obtaining a frame sampling signal at near end to judge whether there is voice at far end or not according last 5-15 frames at far end, detecting voice echo of said frame if it is and calculating low frequency energy of said frame signal to judge out whether only echo is existed or not then carrying out smooth on echo or replace echo by comfort noise signal if echo is existed and not varying current signal if echo is not existed, or otherwise not requiring to carry out detection on voice of said frame at near end and directly coding and transmitting voice.

The embodiment of the invention discloses a television volume control method and system, and relates to the field of display. The method and system can solve the problem that when a television is turned on, sudden volume is large and disturbs other people. According to the television volume control method, when a television receives a turn on order, the process of a mute turn-on mode is executed, and the method specifically comprises the steps that system time is obtained, whether the system time is in a preset rest period is judged, if the system time is in the preset rest period, the television is turned on in a mute mode, and if the system time is not in the preset rest period, the television is turned on normally.

The invention discloses a loudspeaker diaphragm and a loudspeaker. The loudspeaker diaphragm comprises a thermoplastic polyester elastomer film layer, wherein a thermoplastic polyester elastomer is acopolymer composed of a polyester hard segment A and polyether or an aliphatic polyester soft segment B, the glass transition temperature of the thermoplastic polyester elastomer film layer is less than or equal to 20DEG C, and the thermoplastic temperature of the thermoplastic polyester elastomer film layer is 50DEG C to 200DEG C.

The invention discloses electronic display equipment and electronic equipment. The electronic display equipment comprises a shell, a screen and a vibration device; at least a part of the screen is connected with at least a part of the shell through a flexible connection device; the flexible connection device has elastic, the vibration device is fixed on the screen, the vibration device is configured to produce vibration in response to an electric signal of the external circuit, and drive the screen to make sound by vibration. In the electronic display equipment disclosed by the embodiment of the invention, the screen and the shell are connected through the flexible connection device but not in fixed connection; the screen cannot drive the shell to vibrate together in the vibration, therebyeffectively reducing the sound leaking caused by the vibration of the shell.

A method for transmitting data of multimedia includes detecting whether data is lost or not by utilizing count value of preset field in transmission stream packet head or count value of preset field in net load packet head and setting error frame mark in multimedia data frame that has lost data if it is.

The invention discloses a loudspeaker diaphragm and a loudspeaker. The diaphragm comprises a thermoplastic polyester elastomer film layer, wherein the thermoplastic polyester elastomer is a copolymerformed by a polyester hard segment A and a polyether or aliphatic polyester soft segment B, wherein the mass percent of the polyester hard segment A is 10%-95%. The loudspeaker diaphragm is high in structural strength, difficult to damage, good in toughness resilience performance and good in sound production effect.

The present invention provides for methods and systems for digitally processing an audio signal. Specifically, the present invention provides for a headliner speaker system that is configured to digitally process an audio signal in a manner such that studio-quality sound that can be reproduced.

The invention discloses an electronic device, which comprises a shell. The shell comprises a top wall and a bottom wall opposite to the top wall. The bottom wall comprises a body part and an edge part inclined towards the top wall. At least one sound production unit corresponding to the edge part is arranged in the shell, and comprises at least one sound output hole formed on the edge part. In the electronic device, the sound output hole is reserved on the edge part, inclined relative to the top wall, of the bottom wall so as to achieve a relatively better sound output effect when the bottom wall of the electronic is positioned on a platform.

The embodiment of the application, which relates to the technical field of electronic devices, discloses a sounding method and device, an electronic device and a storage medium. The electronic deviceis composed of a vibrating member being capable of making vibration to make sounds and at least two exciters for driving the vibrating member to make sounds; the vibrating member being at least one ofa screen or a housing of the electronic device includes a first sounding area and a second sounding area; and the first sounding area and the second sounding area are driven by different exciters tomake sounds. In addition, the sounding method comprises: receiving sound signals; acquiring a left sound channel signal and a right sound channel signal among the sound signals; and driving the firstsounding area to make sounds by the exciter according to the left sound channel and driving the second sounding area to make sounds by the exciter according to the right sound channel. According to the invention, the electronic device uses the exciter to drive the vibrating member to make vibration to make sounds, so that the rich generation effect is made.

The present invention relates to low sound reproduction of a compact speaker, a degree of freedom of design for the low sound reproduction, chattering noise of structures of electronic apparatuses due to powerful low sound reproduction, chattering noise of structures near a car speaker due to powerful low sound reproduction, leakage of sound out of a vehicle, and an exterior design of unattractive passive radiators. Specifically, a bottom-raised box part is installed in an enclosure to adjust a volume of the enclosure. A plurality of pairs of passive radiators having different resonance conditions is installed. An external enclosure is installed in the outside of the speaker system including a driver, passive radiators and an enclosure. Signal processing is performed to {suppress a gain at a resonance point of the lowest frequency band providing the maximal vibration of the driver} and {emphasize a gain at a resonance point of the lowest frequency band providing the minimal vibration of the driver}.

The invention relates to the field of home audios, in particular to a method for automatically adjusting the sound direction and time delay of an audible device and achieving the best sound effects. The method includes the steps: recognizing a user position, adjusting directions of loudspeakers and enabling a sound output direction to directly face a target user; measuring the distance between each loudspeaker and a user, adjusting the sound time delay of the loudspeakers and enabling sound of each loudspeaker to simultaneously reach the user. By the steps, the sound direction and the time delay of the loudspeakers are automatically adjusted to achieve the best sound effects.

The invention relates to a safe, environment-friendly and energy-saving exposed firecracker, which can solve the defects of present product which is not safe. The invention comprises a base for stuffing medicine, a sealing cut above the medicine, and lead wire. A metallic sheath is arranged between the inner wall of cylinder base and the medicine, whose lower end is embedded into base; the lower part of base is inserted into a protective frame with lead wire outlet. Compared to present technique, the invention has the advantages that: 1, high safety without injecting high-speed matters; 2, environment protection without left matters; 3, lower cost and the application for batch production, with controllable producing process.

The invention discloses a device for transmitting and receiving video data and a transmitting and receiving method; a confirmation retransmission module is arranged on a transmitting device of video data; a response module is arranged on a receiving device of video data; a packet-loss retransmission mechanism is established, namely, aiming at the received RTP data packet, the response module in the receiving device responds and restores confirmation information to the confirmation retransmission module in the transmitting device, the confirmation retransmission module is utilized for receiving the confirmation information, judging whether the RTP data packet loses and generating retransmission commands to a first UDP module after judging that the RTP data packet loses; the first UDP module retransmits the RTP data packet to a TCP / IP transmission network according to retransmission instructions and the receiving device receives the RTP data packet again so as to ensure the data packet received by the receiving device to be complete, thereby ensuring that finally, an image output image can output video image with good output quality and sound effect, namely, the image and the sound are clear.

The invention relates to a vehicle-mounted navigation system and a control method of the system. A vehicle-mounted navigator comprises an external portable navigator, a support and a whole vehicle entertainment system, wherein the portable navigator can be detachably fixed on the support, and the support is directly and fixedly integrated on a center control platform in a vehicle, so that the portable navigator can transmit data with the whole vehicle entertainment system by the support; and the control method includes the steps of entering a navigation mode, outputting sound and video, sending out an command, receiving the command and quitting from the navigation mode. The vehicle-mounted navigation system reduces the allocation threshold, increases the selection range of users to the portable navigator, and accelerates the popularization of the application of the vehicle-mounted navigation system.

The invention discloses a video communication system and method with a reliable mechanism, which respectively adds a first error check module and a second error check module to the sending and receiving devices of prior video communication system, and makes corresponding changes combining sending and receiving method of prior video communication system, that is: the first error check module adds error check code to encoded video frame, then the sending module divides the video frame with added error check code and packs the video frame into a plurality of video frame data packs and a plurality of error check code data packs, and sends the packs in network; the second error check module passes the receiving module received data packs from network to QoS module for buffering, and then the second error check module tests error check processing, uses corresponding error check code to recover the lost or error video frame data packs, and removes error check data packs if the video frame data pack is integral, then combines and reverts the video frame data pack into video frame, finally video images with excellent effection are outputted by image output device.