88results about How to "Boost bass" patented technology

A speaker device for use in a mobile terminal includes a speaker frame with a speaker unit mounted therein, and a frame cover provided at the rear side of the speaker frame to form a resonance space between the speaker frame and the frame cover. Sound that is output in a forward direction of the speaker unit is emitted to a front space of the speaker frame, and sound that isoutput to the rear of the speaker unit is emitted through the resonance space. The speaker device provides the resonance space at the rear side of the speaker frame to reinforce the output of midrange and bass tones, thereby reproducing the original sound as accurately as possible. The speaker device enables a user to enjoy vivid sound when reproducing a multimedia file or viewing a digital, multimedia broadcast (DMB) program on a small-sized device, such as a mobile terminal.

A liquid crystal television bass boost system comprises a front frame, a rear cover, a screen and a vibration speaker, wherein the vibration speaker is fixed to the front frame through a speaker support, the vibration speaker and the speaker support are fixedly connected through a spring cushion, an elastic cushion is installed on an vibration head of the vibration speaker, a metal plate is arranged between the rear cover and the vibration speaker and is fixed to the rear cover, and the metal plate and the vibration head of the vibration speaker are connected tightly through the elastic cushion. By the aid of the system, a flat television has good bass effect under the condition that the thickness of a mainframe is not changed.

The invention relates to a sound box module and especially relates to a loudspeaker and a manufacturing method thereof. Sound is generated by the loudspeaker in a manner of generating mechanical vibration under an action of an electromagnetic force. The loudspeaker comprises a sound box module which comprises a horn, a driven radiator and a sound box panel, wherein a mounting hole is formed on the sound box panel; the horn is arranged at the mounting hole and is integrally formed with the sound box panel in the manner of embedding ejection; a secondary mounting hole is formed on the sound box panel on one side of the mounting hole; and the driven radiator is arranged in the secondary mounting hole and is integrally formed with the sound box panel in the manner of embedding ejection. The loudspeaker has the advantages of small volume, small thickness, simple structure and enhanced low pitch. The loudspeaker can be used as a built-in loudspeaker or an external loudspeaker of a modern panel personal computer or intelligent mobile phone, and the like. In order to ensure an excellent sound effect of the sound box, an embedding ejection integrating manufacturing process is adopted, thereby maximally ensuring the sound effect of the sound box, greatly shortening the working time and promoting the production efficiency.

A low cost/high efficiency passive radiator module component includes: a ported cavity structure adapted for placement inside an acoustic enclosure with a port communicating out of the acoustic enclosure and one or more pairs of passive radiators symmetrically oriented and supported on opposing side walls of the ported cavity each having a predetermined or tuned mass distribution, stiff acoustic radiating diaphragm surfaces, and spaced apart inner and outer suspensions configured to suppress diaphragm wobble that induces each pair to symmetrically vibrate inertially responsive to variable sound pressure pulses originating from an active acoustic radiator within the acoustic enclosure. Different variable acoustic pressure pulses may be detected inside and outside the ported cavity; the constricting horn connecting to the ported cavity from outside may be tuned by horn loading to achieve a desired effect.

The invention discloses a loudspeaker having a dual-membrane structure, in particular to a moving-magnetic and piezoelectric composite broadband loudspeaker and a driving method of the loudspeaker. The composite loudspeaker comprises a housing and a vibrating element installed in the housing, wherein the vibrating element comprises a first vibrating element and a second vibrating element; the composite loudspeaker further comprises a moving-magnetic driving component used for driving the first vibrating element vibrate and a piezoelectric driving component used for driving the second vibrating element vibrate. The moving-magnetic driving component of the loudspeaker provided by the invention is mainly used for replaying low-mid pitch; the piezoelectric driving component is mainly used for replaying mid-high pitch; the moving-magnetic part and the piezoelectric part have the same aperture, which can ensure a lower resonance frequency and ensure a larger acoustical output; a magnet, a concentrating flux plate and a concentrating flux bowl are directly connected with a vibration unit, thereby increasing the vibration mass, reducing the resonance frequency and further enhancing the bass effect; the composite loudspeaker has the advantages of compact and light structure, wide frequency band and so on.

The invention relates to a loudspeaker box which comprises a loudspeaker box body and a horn. The horn is telescopically arranged in an outer shell of the loudspeaker box body; a flexible soft material is connected between the periphery of the horn and the outer shell of the loudspeaker box body; when the horn extends out of the outer shell of the loudspeaker box body, the flexible soft materials is stretched to expand to enlarge the volume of a rear vocal cavity of the horn. By the arrangement, the problem that the sound effect and volume in an existing loudspeaker box cannot be considered at the same time is solved, bass effect of the loudspeaker box is improved, the volume of the loudspeaker box is reduced, and convenience in carrying and placing is achieved.

A microphone having: a first bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section on a front side thereof, back to back; and a second bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section on a front side thereof, back to back, and a directional axis of the second bidirectional microphone unit is arranged to be shifted by 90 degrees with respect to a directional axis of the first bidirectional microphone unit.

The invention discloses a transient steady-state signal separation-based hybrid virtual bass enhancement processing method. The method comprises the following steps: 1, separating the transient component from the steady component in the original audio signal by using a transient/steady signal separation algorithm; carrying out virtual bass processing through a virtual bass generation module basedon a nonlinear device and a virtual bass generation module based on a phase vocoder; performing harmonic amplitude control on the obtained two paths of virtual bass signals to enable the two paths ofvirtual bass signals to meet an equal loudness curve, combining the two paths of virtual bass signals into one path, and finally superposing the obtained virtual bass signals and high-frequency signals obtained after performing high-pass filtering and delay processing on the obtained virtual bass signals and original audio signals to obtain audio signals after hybrid virtual bass enhancement processing. According to the method, steady-state distortion and transient distortion of virtual bass processing are greatly reduced, so that the bass effect is enhanced while the original quality of the audio signal after virtual bass processing is kept, and the resonance, fullness, vigorousness and space feeling of the audio are enhanced.

The present invention discloses an audio processing method and an audio processing device, wherein the audio processing method comprises the steps of obtaining the audio data needing to be processed; carrying out the high-pass filtering processing and the gain control processing on the audio data orderly to obtain a high frequency component of the audio data; carrying out the low-pass filtering processing and the gain control processing on the audio data orderly to obtain a low frequency component of the audio data; obtaining the front N numerical values of the low frequency component, carrying out the convolution operation processing on the front N/2 numerical values and the back N/2 numerical values of the front N numerical values and a transfer coefficient separately, then summing and carrying out the M-order filtering operation to obtain the high frequency band data of the low frequency component; generating the first harmonic and the second harmonic of the high frequency band data, and carrying out the convolution operation processing to obtain the virtual bass data; carrying out the logic additive operation on the high frequency component and the virtual bass data of the above audio data, and then outputting the processed audio data. The technical scheme of the present invention enables the bass effect of the audio to be improved effectively.

The invention provides a loudspeaker module which comprises an inner magnetic loudspeaker unit, a shell body and a metal back face plate, wherein the inner magnetic loudspeaker unit is connected with the shell body, the metal back face plate is connected with the plastic shell body to form a sealed cavity, the inner magnetic loudspeaker unit comprises a magnetic circuit system, and the magnetic circuit system is contacted with the metal back face plate. The loudspeaker module promotes low sound, and resolves a radiating problem of a small-field-core high-power inner magnetic loudspeaker module.

Disclosed is a double-vibrating-diaphragm loudspeaker box. The side view of an inner shell of the loudspeaker box is in a U shape. A through groove is formed in the middle of the U shape. An upper vibrating diaphragm is fixedly installed above the through groove. A lower vibrating diaphragm is fixedly installed below the through groove. A loudspeaker is fixedly installed inside the inner shell. A sound output hole is formed in the position, corresponding to the loudspeaker, of the inner shell. The whole inner shell is of a sealing structure. Reverse-direction airflow generated when the loudspeaker makes a sound can drive the two vibrating diaphragms to vibrate at the same time. When the double-vibrating-diaphragm loudspeaker box works, the sound made by the loudspeaker is added to the two vibrating diaphragms through a sealed loudspeaker box cavity, so that the two vibrating diaphragms move outwards or inwards along with the airflow of the loudspeaker at the same time, and bass heard by the ears of a person is increased by one time. Meanwhile, as for a loudspeaker box body, the moving directions of the two vibrating diaphragms are just opposite, so that the balancing aim is achieved, and the aim that compared with a loudspeaker with the general design, the double-vibrating-diaphragm loudspeaker box has the better sound restoration effect, namely the high fidelity effect is achieved.

A dual suspension edge member structure for a radiation device, a dual suspension edge loudspeaker and a loudspeaker box. The radiation device comprises an outer supporting frame, a vibration element, a first suspension edge member extending between the vibration element and the outer supporting frame, an inner frame connected to the vibration element, an outer holding frame, and a second suspension edge member connected between the inner frame and the outer holding frame. The dual suspension edge member structure of the radiation device for making the dual suspension edge loudspeaker or loudspeaker box prevents shaking and shifting of the vibration element to improve the sound effect quality.

The invention discloses a display device which comprises a display main body and an electromagnetic vibration device. The display main body comprises a shell, a display screen mounted at the front endof the shell and an optical film group mounted in the shell, and the shell comprises a back plate. And the electromagnetic vibration device is mounted on the back plate and is used for sounding by vibrating the back plate, the optical film group and the display screen. According to the technical scheme provided by the invention, the electromagnetic vibration device is arranged at the back plate of the display main body. When the electromagnetic vibration device vibrates, the back plates, the shell, the optical film group and the display screen can be sequentially driven to vibrate. Compared with the traditional technical scheme of sound transmission through a sound box, the sound box has the advantages that the paper cone area and the volume of the sound box are increased equivalently, the bass effect is improved, meanwhile, enough space is reserved for high-pitch sound production, the high-pitch effect is improved, the optimal sound listening area range can be expanded, and convenience is brought to a user to use.

The invention relates to a single-cavity sandwich-type automobile subwoofer. The subwoofer comprises a bass box body, woofers and bass radiator groups, wherein the woofers and the bass radiator groupsare installed in the bass box body. There is at least one woofer and the woofer is installed on the box wall of the bass box body. There is at least one bass radiator group and each group comprises two bass radiator units. The two bass radiator units are arranged correspondingly in front and back portions and are installed on the box wall of the bass box body. The installation plane of the two bass radiator units is coplanar, parallel, vertical or tilted to the installation plane of the woofer. In the invention, through the interaction of the woofer and the bass radiator group, electroacoustic conversion is completed in a single bass box body so that the size of the subwoofer is reduced by 90%; and the weight is light, the shocking, heavy, elastic and pure bass can be generated so that problems that the subwoofer is large and is not easy to install are solved. The subwoofer of the invention is suitable for internal installation of front installation, rear installation and the like ofan automobile, wherein the internal installation has requirements of the small size, thin installation and good bass.

A device for improving receiver noise comprises an electromagnetic shielding casing, a vibrating diaphragm, a magnetic core coil, a magnetic induction coil signal wire and a circuit board, wherein the electromagnetic shielding casing comprises a front cavity and a rear cavity; a speaking terminal is arranged on the front cavity; the circuit board is arranged on one side of the rear cavity; two wiring holes are formed in the circuit board; an open pore is formed between the two wiring holes; and a damping net is arranged on the opening pore. The device disclosed by the invention has the beneficial effects that a through hole corresponding to the open pore in the circuit board is formed in the electromagnetic shielding casing, so that low pitch of a receiver is enhanced; and the damping net is arranged on the open pore of the circuit board so as to reduce the air eddy current effect in the casing, improve the noise phenomenon of the receiver and reduce total harmonic distortion of the receiver.

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.