68results about How to "Guaranteed sound" patented technology

The invention provides a facial expression generation method and device, an electronic device and a storage medium. The method comprises: performing feature extraction on obtained voice information, obtaining a first voice feature vector, the first voice feature vector comprising a plurality of voice feature parameters, and each voice feature parameter indicating a Mel frequency cepstrum coefficient based on voice; inputting the first voice feature vector into a preset recognition model to obtain a first expression vector, wherein the first expression vector comprises a plurality of expressionparameters; and fitting the three-dimensional animation model according to the first expression vector to obtain a three-dimensional animation model with expressions. The Mel frequency cepstrum coefficient based on the voice can retain the content information, pitch, tone and other voice characteristics of the voice, and can better restore the expression action. Therefore, the facial expressionsof the three-dimensional animation model are more correct, the facial expressions can be better simulated, and the obtained expression actions conform to the voice information and the voice data.

The invention provides a direct drive global roof type loudspeaker, which includes a loudspeaker magnetic circuit structure which could generate a circle belt shaped radial permanent magnetic field, and a convex global roof shaped sound film and a corrugated rim connected therewith. The invention is characterized in that a wire-wound speech coil is directly formed on the sound film surface which is on the connection of the sound film global roof and the corrugated rim. Technically the speech coil is a lead for coating the insulating layer, and the speech coil can be directly coiled on the connection, or a pre-coiled coil which is directly fixed on the connection. Particularly, when the chose sound film is a textile sound film, the coil could be a lead for coating the insulating layer, which is weaved on the connection in the mode similar to sewing, thereby strengthening the integration of the sound film and the speech coil. The loudspeaker has the advantages of flat membrane type direct drive wide frequency response, free material-choosing of the global roof type sound film, graceful timbre, and wire-wound speech coil with small volume, high efficiency and uniform magnetic field or the like.

The invention discloses a guqin (a plucked seven-string Chinese musical instrument of the zither family), comprising a face plate and a bottom plate. The face plate comprises a first inner plate surface and a first outer plate surface. The first inner plate surface is provided with a dragon pool sound absorber and a phoenix pond sound absorber, and the structures of the dragon pool sound absorber and the phoenix pond sound absorber are the same and are characterized in that, a sound absorber and a connecting block are included, the cross section of the connecting block is in the shape of a trapezoid, the upper bottom surface of the connecting block is connected to the first inner plate surface, and the lower bottom surface of the connecting block is connected to the sound absorber. The bottom plate comprises a second inner plate surface and a second outer plate surface, and the second inner plate surface is laid with a felt layer. The guqin is advantageous in that, through the sound absorber shape and structure in a guqin face plate, a traditional mode is changed, and the effect of effectively increasing sound volume of the guqin can be achieved; the felt layer is added in the bottom plate, so that, in the time that the sound volume of the guqin is increased, tone quality is ensured; and a big breakthrough is made for a traditional guqin, and a guidance meaning in the development process of the guqin is provided.

The invention relates to the technical field of drum set industry, particularly a drum set with silencing and damping functions, which comprises a drum cavity wall and rubber washers, wherein the upper and lower outer side walls of the drum cavity wall are respectively connected with an upper drum rack and a lower drum rack through threads; the upper drum rack is provided with drum leather, the lower drum rack is provided with a plurality of bandages; the upper and lower end surfaces of the drum cavity wall are respectively provided with a groove ring matched with the rubber washer; and each rubber washer is tightly nested in the groove ring. When the drum set is in use, after the drum bar knocks on the drum leather, the drum leather transfers vibrations to the upper drum rack, the upper drum rack reduces the vibrations through the rubber washer, and the vibrations on the drum cavity are transferred to the lower rubber washer, and the lower rubber washer reduces the vibrations and transfers the vibrations to the lower drum rack, thereby greatly reducing the vibrations of the drum cavity and lower drum rack; the resonance state is greatly lowered, thereby reducing the generation of the drum beats, ensuring the acoustic quality of the drum cavity of the drum set and preventing the beginners from lowering the interest due to damping. The drum set has the advantages of simple structure, reasonable arrangement, low manufacturing cost and the like.

The invention relates to the field of household appliances, and discloses a household combined sound. The household combined sound comprises a speaker body and a volume knob, a negative ion generatoris fixedly mounted on the outer surface of one side of the speaker body, a protective layer is fixedly mounted on the front outer surface of the speaker body, a dust screen covers the front outer surface of the protective layer, a control device is fixedly mounted on the outer surface of the other side of the speaker body, a signal sensing lamp and a function key are fixedly mounted on the lower outer surface of the control device, a switch button, a jack and a current corrector are fixedly mounted on the central outer surface of the control device, and a bass knob is arranged on the front outer surface of the control device. According to the household combined sound, the active connection of a slide rail and a chute facilitates dust removal from the device, and the current corrector and the negative ion generator can eliminate the influence of noise on the device, neutralize the static electricity and reduce the damage of the static electricity to the device.

The invention discloses a sound box and a terminal, and relates to the technical field of acoustics. The sound box comprises a box body, a heat absorbing plate, a loudspeaker and a plurality of heat dissipation holes, heat absorbing plate is fixedly arranged in the box body, and at least one end of the heat absorbing plate extends out from the box body; the heat absorbing plate divides the box body into a first chamber and a second chamber; the plurality of heat dissipation holes are formed in the heat absorbing plate to communicate the first chamber with the second chamber; and the loudspeaker is installed in the first chamber, and the loudspeaker can drive the air circulation of the first chamber and the second chamber. The sound box disclosed by the invention can improve the heat dissipation effect and prolong the service life while ensuring the sound effect.

The invention discloses a novel car interior front decoration and door decoration comprising an instrument panel decorative casing and a decorative panel; the decorative panel is symmetrically arranged on the left and right sides of the instrument panel decorative casing; the instrument panel decorative casing and the decorative panel are made of thermoplastic materials such as PVC; a lower part of the instrument panel decorative casing is provided with a pedal front segment decorative casing, and the pedal front segment decorative casing is made of thermoplastic material; an upper part of thedecorative panel is provided with an upper panel insert member, and the rear part of the decorative panel is provided with a door inner groove; a fastening screw is connected to the middle of the door inner groove, and a waterproof sleeve is attached to the left end of the fastening screw; a waterproof sleeve is screwed to the fastening screw, and a built-in positioning plate is arranged on the right side of the door inner groove; the built-in positioning plate and the door inner groove are fastened by screws. According to the novel car interior front decoration and door decoration, the control panel is arranged in the instrument panel decorative casing, the control panel is mounted on the control panel bracket, the installation is reliable, the installation is convenient, the structure is simple and the cost is low.

The invention relates to a cavity bracket for a vehicle loudspeaker unit. The loudspeaker unit comprises a woofer (61) and a tweeter (62) and is fixed to a vehicle body by means of the cavity bracket, the cavity bracket comprises a first bracket half part (1) and a second bracket half part (2), the first bracket half part (1) and the second bracket half part (2) are correspondingly provided with cavities and a plurality of connecting flanges, and the corresponding connecting flanges are assembled together to form a cavity for accommodating the woofer (61), wherein a woofer mounting hole is formed in the cavity wall of the cavity of the first bracket half part (1), and the first bracket half part (1) comprises a tweeter mounting part adjacent to the woofer mounting hole and located outside the cavity. The invention further relates to a vehicle comprising the cavity bracket. According to the cavity bracket, the diffusion of the bass in the opposite direction can be prevented, and the bass sound of a HIFI speaker unit is effectively improved.

The present invention relates to a stationary device (1) for a house intercom system, specifically to a residence base station. The stationary device (1) has device housing (2) and an audio component with a microphone. A loudspeaker (6) is provided for an audio communication, where the microphone is connected to a printed circuit board (36) by an electrical connector (58). The electrical connector (58) is formed by the elastic attachment contact elements that rest on a contact surface of the printed circuit board (36). The microphone (4) in the housing (2) is located in the interface (46), so as to isolate it from the echo of the loudspeaker (6).

The invention provides a VAR smelting method of a high-purity vanadium ingot. High-purity vanadium is pressed into multiple electrode blocks through an oil press, and then the electrode blocks are welded into a consumable electrode. The consumable electrode is smelted with a vacuum consumable smelting method, a primary ingot is obtained, then secondary smelting, scaling and riser cutting-off are carried out, and the finished cast ingot is obtained. The purposes that the pure vanadium ingot is clean, and the interior and surface quality is good are achieved, the vacuum consumable smelting method is mature in technology, the automation degree of the process is high, the operation is easy, the cost is low, preparation of the industrial-scale cast ingot can be achieved, and good blanks are provided for following hot working and machining.

The invention discloses a guitar sound hole grinding machine. The guitar sound hole grinding machine comprises a working table. A clamp device is arranged on the working table. A drilling device is arranged above the clamp device. A driving device is arranged above the drilling device. The clamp device comprises a driving motor. A rotary shaft of the driving motor is connected with a driving gear.The driving gear is engaged with a driven gear. The driven gear is connected with the center of a threaded rod. The left portion of the threaded rod is provided with a thread I, and the right portionof the threaded rod is provided with a thread II. The directions of the thread I and the thread II are opposite. The thread I is connected with a left clamp mold, and the thread II is connected witha right clamp mold. The bottom of the left clamp mold and the bottom of the right clamp mold are each connected with a sliding body. The sliding bodies are arranged in slide rails. The slide rails arearranged on the table surface of the working table. The guitar sound hole grinding machine has the advantages that the sound hole grinding effect and quality are good; the quality problems of sound hole out-of-roundness and grinding unevenness are not likely to occur; the tone quality and timbre of guitars are ensured; the grinding efficiency is high; and the guitar sound hole grinding machine issuitable for large-scale production.

A ukulele includes a ukulele main body and a circuit board. The ukulele main body includes a head, strings, a fret board, and a body. A front surface of the body is provided with a saddle and a bridge. The circuit board is disposed in the body. The circuit board includes a power supply module, a Bluetooth audio input module, a pickup module, a mixing module, and an audio output module. The ukulele can be played in conjunction with a smart phone accompaniment and ensure the timbre of playing.

The invention discloses a mounting tool applied to a microphone element. The mounting tool comprises a mounting tool body; the sound ring hole is formed in the mounting tool body and corresponds to a sound ring bonding pad of the PCB, and the area of the sound ring hole is smaller than that of the sound ring bonding pad; the surface mounting tool comprises a surface mounting tool body and a signal hole, the signal hole is formed in the surface mounting tool body and corresponds to a signal bonding pad of the PCB, and the area of the signal hole is smaller than that of the signal bonding pad. According to the mounting tool applied to the microphone element, the area of the sound ring hole is smaller than the area of the sound ring bonding pad, and the area of the signal hole is smaller than the area of the signal bonding pad, so that the amount of solder paste on a PCB can be reduced, the situation that solder collapses and overflows out of the bonding pad due to the acting force of the microphone element is avoided, the solder bead phenomenon is avoided, and the quality of the microphone element is improved. Therefore, the electrical performance of the PCB is ensured.

The invention discloses a spliced musical instrument protecting board. The protecting board is obtained through splicing more than two sub protecting boards. Each sub protecting board is made of metal. The thickness of each sub protecting board is 0.5-1 mm. The spliced musical instrument protecting board is made of metal. The protecting board has electric conductivity and adhibition of a copper foil is not required. The protecting board has a good noise shielding effect and ensures high tone quality of the musical instrument. Because the protecting board is made of metal and has a relatively small thickness, two or more protecting boards can be laminated on the musical instrument, thereby improving the noise shielding effect of the protecting board. Furthermore various kinds of patterns can be engraved on an outmost protecting board, thereby improving aesthetical property of the musical instrument. The protecting board is obtained through splicing a plurality of sub protecting boards which are convenient to carry. Furthermore the sub protecting boards with different colors and different patterns can be spliced successively, thereby realizing infinite possible types of the protecting boards.