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 waterproof flame-retardant paper cone, a speaker and a preparation method of the paper cone. The waterproof flame-retardant paper cone is composed of pulp, the front surface of the waterproof flame-retardant paper cone contains a waterproof agent, and the back surface of the paper cone contains a flame retardant. According to the waterproof flame-retardant paper cone provided by the invention, the suitable pulp is selected, so that acoustic performance and tone of the paper cone are ensured; at the same time, the paper cone is subjected to waterproof treatment and flame-retardant treatment, the front surface of the paper cone is coated with the waterproof agent, the back surface is coated with the flame retardant, so that the usage amount of the flame retardant andthe waterproof agent can be reduced, the weight increment of the paper cone can be effectively controlled within 5% without affecting the paper pulp composition of the paper cone, the problem that effects are affected because a mutual reaction exists when the flame retardant and the waterproof agent are mixed for use is avoided, the flame retardant grade can reach V-0, the waterproof grade can reach IPX-7, and the flame-retardant waterproof effects are excellent; and the paper cone has good effects when used in the speaker, and has wide market prospects.

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 a joint type dulcimer playing robot. The robot comprises shoulder joints, elbow joints, wrist joints, large arms, small arms, waist motors, waist speed reducers and transposition gear pairs, wherein the shoulder joints, the elbow joints and the wrist joints are symmetrically mounted on the left side and the right side; the waist motors on same sides drive shoulder bases to rotate by the aid of the waist speed reducers and the transposition gear pairs; the waist motors and the waist speed reducers are mounted on shoulder support frames on same sides; the waist motors rotate to drive the large arms on same sides to rotate; elbow bases of the elbow joints are connected with the large arms on same sides by the aid of sheet metal parts; elbow support frames are fixedly connected with the small arms on same sides by the aid of sheet metal parts; elbow steering engines rotate to drive the small arms to rotate; the small arms are connected with wrist bases of the wrist joints on same sides; bamboo hammer clamping seats are fixed on output shafts of wrist steering engines; dulcimer bamboo hammers are mounted in the bamboo hammer clamping seats; and the wrist steering engines drive the bamboo hammer clamping seats to drive the dulcimer bamboo hammers to reciprocate up and down so as to realize actions of playing and knocking dulcimer keys. The robot is personified in appearance, convenient to control, large in direct movement range, small in noise and good in playing quality.

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 provides a loudspeaker control system for intelligently adjusting volume. The system comprises a wind pressure sensing control unit, which includes a differential amplification module, a reference voltage generation module and a wind pressure sensor module; an audio signal input unit; an audio signal processing unit, which includes a voltage controlled amplification module, a fixed gain amplification module, a power amplification module and a filter module; and a loudspeaker unit which is connected with an output end of the filter module. The device can automatically adjust the loudspeaker volume according to external wind power, and improve the listening experience of audiences.

The invention relates to an audio cloud platform, and particularly relates to a mobile internet-based multimedia video and audio cloud platform. The platform comprises a device bracket, a transverse moving mechanism I, a rotating mechanism, a swinging mechanism, adjusting mechanisms, mounting mechanisms and a seat mechanism; the transverse moving mechanism can drive the rotating mechanism to perform transverse movement; the rotating mechanism drives the swinging mechanism to rotate so as to adjust a rotating position of the swinging mechanism; the swinging mechanism drives the adjusting mechanisms on the two sides to move so as to adjust swinging angles of the two adjusting mechanisms; sound boxes are mounted on the eight mounting mechanisms to form stereo sound; meanwhile, angles of the eight mounting mechanisms can be adjusted; and meanwhile, the swinging angles of the two adjusting mechanisms are adjusted at the same time, so that the eight mounting mechanisms on the two sides are kept symmetrical, and the sound effect of double ears is ensured.

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 invention discloses an assembled bass drum, which comprises a drum frame and a drumhead arranged on the drum frame, the drumhead and the drum frame are both components, and the drumhead component and the drum frame component are connected and fixed through connecting parts; The drum frame assembly is composed of several unit parts connected by connecting parts 。 The present invention adopts detachable drum head assembly, drum frame assembly ， It not only maintains the appearance, sound quality and timbre characteristics of the original traditional bass drum, but also has the advantages of quick disassembly, convenient transportation, easy maintenance and storage.

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 guitar chord fingering device. The guitar chord fingering device comprises a shell, a frame, a plurality of electromagnetic devices, string contact pressers and an electrical control unit, wherein the shell is provided with chord keys; the frame is fixedly arranged in the shell; the electromagnetic devices are fixedly arranged on the frame; each electromagnetic device corresponds to a different pitch of each string of a guitar; the string contact pressers are driven by the electromagnetic devices; the chord keys are electrically connected with the electrical control unit; and the electrical control unit controls the electromagnetic device at the corresponding pitch to move according to a chord fingering spectrum corresponding to the chord keys so as to drive the string contact pressers to press strings. The invention also provides the guitar provided with the guitar chord fingering device. The guitar chord fingering device and the guitar have the advantages of good universality, simple structure and capability of avoiding interference among parts in various chord processes.

The invention discloses a multi-functional droplight, belonging to an illumination lamp. The multi-functional droplight mainly solves the problem of the single function of a traditional droplight. The multi-functional droplight comprises a cable, a pedestal, a speaker, a lamp tube and a lamp cover, wherein the cable passes through the pedestal and comprises a wire connecting with the lamp tube and an audio frequency wire connected with the speaker, the speaker is arranged on the pedestal, the audio frequency wire is connected onto the speaker, a through hole is arranged in the center of the speaker, a lamp seat connected with the lamp tube is arranged around the lowest end of the through hole, the wire is connected with the lamp seat through the pedestal and the through hole of the speaker, and the lamp cover is fixedly arranged on the periphery of the bottom of the speaker. According to the multi-functional droplight, the illumination of a droplight and the functions of the speaker are combined, and more conveniences are provided for people.

The invention discloses a natural horn-type mini speaker with a reversal phase structure. The mini speaker comprises a speaker body, a loudspeaker slot is arranged in the speaker body, a loudspeaker is arranged in the loudspeaker slot, and the front of the loudspeaker is towards the external of the speaker body; a natural horn type reversal phase tube is arranged in the natural horn type mini speaker with the reversal phase structure, and is a hollow tube with a spiral plane; one end of the center of the natural horn type reversal phase tube is communicated to the external of the speaker body,and a passive vibrating diaphragm is arranged at the center of the natural horn type reversal phase tube; the other end of the natural horn type reversal phase tube is communicated with the loudspeaker slot. The structure of the invention can acquire high tone quality on the mini speaker, and the unexpected technical effect is obtained.

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.

The invention relates to a joint type dulcimer playing robot. The robot comprises shoulder joints, elbow joints, wrist joints, large arms, small arms, waist motors, waist speed reducers and transposition gear pairs, wherein the shoulder joints, the elbow joints and the wrist joints are symmetrically mounted on the left side and the right side; the waist motors on same sides drive shoulder bases to rotate by the aid of the waist speed reducers and the transposition gear pairs; the waist motors and the waist speed reducers are mounted on shoulder support frames on same sides; the waist motors rotate to drive the large arms on same sides to rotate; elbow bases of the elbow joints are connected with the large arms on same sides by the aid of sheet metal parts; elbow support frames are fixedly connected with the small arms on same sides by the aid of sheet metal parts; elbow steering engines rotate to drive the small arms to rotate; the small arms are connected with wrist bases of the wrist joints on same sides; bamboo hammer clamping seats are fixed on output shafts of wrist steering engines; dulcimer bamboo hammers are mounted in the bamboo hammer clamping seats; and the wrist steering engines drive the bamboo hammer clamping seats to drive the dulcimer bamboo hammers to reciprocate up and down so as to realize actions of playing and knocking dulcimer keys. The robot is personified in appearance, convenient to control, large in direct movement range, small in noise and good in playing quality.

The structure of speaker includes a box body and a speaker unit. There is an opening in the box body. The opening takes up weight of the speaker unit only. Moreover, being connected to the opening, a buffer cell takes up the speaker unit and eliminates shaking energy from counterforce in order to prevent noise from occurring caused by the speaker unit bumping the box body. The invention keeps sound of speaker in original tone quality.

A singing assisting system, a singing assisting method, and a non-transitory computer-readable medium including instructions for executing the method are provided. The singing assisting method comprises: receiving a performed singing track by a sound receiving device; detecting if the performed singing track appears in an ought-to-be-performed period by a processing device, if not, executing a singing-continuing procedure, wherein the singing-continuing procedure comprises: converting an original-singer sound segment into an original-singer acoustics feature; inputting the original-singer acoustics feature to the encoder of the original-singer acoustics model; receiving an output of the encoder of the original-singer acoustics model by the decoder of the user acoustics model; obtaining a first user acoustics feature from an output of the decoder of the user acoustics model; and converting the first user acoustics feature into a synthesized singing track by a vocoder; and outputting the synthesized singing track by a player device. The singing-continuing sound generated by the singing-continuing procedure can maintain the intonation of the original singing, and the singing-continuing sound can be the same as the timbre of the user.

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.

The invention relates to the technical field of sound box parts, in particular to an anti-distortion high-tone-quality sound box diaphragm. The diaphragm comprises a diaphragm body, a composition mechanism is arranged in the diaphragm body, a suppression mechanism and an expansion mechanism are arranged on the diaphragm body, and an abutting mechanism is connected between the expansion mechanism and the suppression mechanism; through the arrangement of the composition mechanism, various materials can be combined together to be pressed into the vibrating diaphragm, the bucket effect is avoided by utilizing the complementary advantages of the various materials, and the sounding effect of the loudspeaker box under high and low frequencies is improved; the damping effect can be provided for the vibrating diaphragm through the suppression mechanism, the resonance of the vibrating diaphragm is suppressed, and the tone quality is improved, and the expansion mechanism drives the suppression mechanism through the abutting mechanism, so that the damping strength of the suppression mechanism can be adjusted, the vibrating diaphragm can be adjusted more conveniently, and the vibrating diaphragm is more excellent in the use process.

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.