58 results about "Microphone" patented technology

A composite hearing aid system comprises two hearing aids (11, 31) with respective microphones (12, 32) and electronic receivers (17, 37), a microphone (42) and a transmitter (41) adapted to transmit the signal from the microphone (42) to the electronic receivers. At least one of the hearing aids (11, 31) comprises means for inverting the phase of the signal received by the electronic receivers (17, 37). When the phase of the received signal is inverted in one of the hearing aids (11, 31), a release from masking is obtained, and the perceived signal-to-noise ratio is improved. The invention provides a composite hearing aid system, a hearing aid and a method for processing audio signals.

A game system is provided with a converting means including a voice input member, such as a microphone, for allowing the game player or his/her friend to input voices and for converting the inputted voices into electrical signal data, a sound data storage for storing the electrical signal data obtained by the conversion together with predetermined sound-relating data corresponding to contents of instructions, a sound generator for generating voices from the corresponding electrical signal data when a game player makes a motion in response to the content of instruction, and a device for evaluating a game result based on the content of instruction. Accordingly, a sound output type game system which can provide more interesting and enjoyable games can be realized.

The present invention provides a hearing aid capable of detecting contact vibration noise from a collected sound signal. A hearing aid (100) is provided with two microphones (110-1, 110-2), a vibration component extracting unit (120) which extracts from collected sound signals respectively obtained by the two microphones (110-1, 110-2) an uncorrelated component between two collected sound signals as a vibration component for each frequency band, a vibration noise identifying unit (130) which determines whether or not a contact noise occurs based on the vibration component for each frequency band extracted by the vibration component extracting unit (120), an acoustic signal processing unit (140) which, when generating an acoustic signal by hearing aid processing of the two collected sound signals, processes the acoustic signal depending on the presence or absence of the occurrence of the contact vibration noise, and a receiver (150) which converts the acoustic signal to sound.

The present invention relates to a communication terminal device, in particular to a Bluetooth terminal device with handfree function, which aims to provide a bluetooth loudspeaker that not only allows handfree communication in match with a bluetooth mobile phone, but also allows internet communication in coordination with a computer. The bluetooth loudspeaker has buttons and circuit device; the circuit device has a speaker, a microphone, a bluetooth module unit, a bluetooth antenna, an audio frequency amplifying circuit and a power system. The circuit also has a handfree chipset; the handfree chipset and the bluetooth module are in a biadirectional electric connection with each other; the audio frequency amplifying circuit and the microphone are respectively electrically connected with the handfree chipset. The speaker is connected with the audio frequency amplifying circuit; the bluetooth antenna is connected with the bluetooth module; the power system is respectively electrically connected with the handfree chipset and the bluetooth module.

The invention relates to an active sound eliminator for a ventilation pipeline system. The active sound eliminator comprises an outer shell, an inner pipe segment, a loudspeaker unit, an error microphone and a loudspeaker power amplifier board card. The outer shell comprises a sealing cover and a shell body, the sealing cover is of a plate-shaped structure with an opening in the center, the shell body is of a barrel-shaped structure with an opening in the bottom central position, one end of the inner pipe segment penetrates through the hole in the center of the sealing cover and is fixed to the sealing cover, the other end of the inner pipe segment is embedded in the hole in the center of the shell body, and the sealing cover is arranged on the top of the shell body. The loudspeaker unit, the error microphone and the loudspeaker power amplifier board card are respectively arranged on the periphery of the inner pipe segment, an output interface of the loudspeaker power amplifier board card is connected with the loudspeaker unit, and a signal input interface and a power source interface of the loudspeaker power amplifier board card and an output interface of the error microphone are led out through an electric connector arranged on the shell body. An annular flange for containing the loudspeaker unit is arranged on the side face of the inner pipe segment, and a plurality of penetrating holes exist in the position, corresponding to the mounting positions of the loudspeaker unit and the error microphone, of the wall of the inner pipe segment.

In accordance with embodiments of the present disclosure, a digital microphone system may include a microphone transducer and a digital processing system. The microphone transducer may be configured to generate an analog input signal indicative of audio sounds incident upon the microphone transducer. The digital processing system may be configured to convert the analog input signal into a first digital signal having a plurality (e.g., more than 3) of quantization levels, and in the digital domain, process the first digital signal to compress the first digital signal into a second digital signal having fewer quantization levels (e.g., +1, 0, -1) than that of the first digital signal.

The present disclosure comprises a compact, sound recording equipment stand, which further comprises a support base, a microphone, a monitor, a sound filter, speakers, a tactile input and lighting source. The stand may additionally comprise a hydraulic pump for raising and lowering various pieces of attached components. In the preferred embodiment, the monitor is built inside a transparent sound filter, placed slightly above head level of an artist. The other components of the stand may similarly be covered in material to maximize sound absorption.

The invention is applicable to the field of earphone manufacturing and provides a general multifunctional earphone. The general multifunctional earphone comprises an earphone plug, a microphone and a left speaker and a right speaker which are connected to the earphone plug, wherein the earphone plug is divided into four terminals separated from one another: a left channel terminal, a right channel terminal, a mic terminal and a ground wire terminal in turn from the top to the root of the plug; the left channel terminal is connected with a signal input end of the left speaker; the right channel terminal is connected with a signal input end of the right speaker; and a function conversion switch enabling mutual function conversion between the mic terminal and the ground wire terminal is arranged between the mic terminal and the ground wire terminal and the microphone. By adding the function conversion switch to the existing four-part earphone structure and properly modifying the connection, the earphone provided by the invention can be applied to electronic equipment adopting a three-part socket or non-standard four-part socket.

The invention relates to the field of noise control of high speed trains, in particular to an acquisition test bench of external aerodynamic noise of a high speed train. The test bench comprises a test bench support which is 2m in length and is divided into N segments (less than 10 segments). Grooves are arranged around the test bench support. The segments can be connected together by use of groove strip connection pieces. The grooves can be used as slide ways. The test bench also comprises a moving platform vehicle and the test bench support is hinged thereto. A steel wire rope is connected to the upper part of the test bench support. By pulling the steel wire rope, the test bench support can be erected from the horizontal position. The test bench further comprises three layers of framework platforms where microphones and measurement and acquisition devices are installed. Through a lifting device where a fixed pulley is arranged and the grooves of the test bench support are taken as slide ways, the microphones and the like are lifted to the same horizontal position with the high speed train, thereby measuring and acquiring aerodynamic noise. According to the invention, under the condition that all kinds of noise test use standards are met, the test bench is low in manufacturing cost, small in size, and easy to disassemble, assemble and transport; by increasing or decreasing the quantity of the test bench support, the height of the test bench can be increased or reduced; and the test bench is flexible to use.

The invention discloses an anti-interference conference telephone comprising a telephone host, a host loudspeaker, a host microphone, a plurality of headsets and a plurality of headset jacks. An audio processor connected with the host loudspeaker and the host microphone is arranged in the telephone host. The plurality of headset jacks are arranged in the telephone host, are connected with the audio processor, and are respectively and internally provided with a detection switch. The headsets are respectively provided with a headset earphone and a headset microphone. The headsets are connected with the audio processor through the plurality of headset jacks. When each headset is inserted in the corresponding headset jack, the corresponding detection switch cuts off connection between the audio processor and the host loudspeaker as well as connection between the audio processor and the host microphone and connects the headset and the audio processor after detecting the insertion of the headset. By employing the design, participants of a conference can insert the headsets in the headset jacks so that external interference to the conference is avoided.

An earphone is provided that can decrease a time delay between a microphone and a loudspeaker. The earphone includes a microphone incorporated with the membrane of loudspeaker. The loudspeaker and the microphone are connected by connection lines to an electronic circuit.

The present invention discloses a wind noise prevention microphone and an earphone cable control apparatus. The microphone comprises: a microphone chamber enclosed by a bottom and a first side wall; a microphone unit arranged inside the microphone chamber and of which a sound pick-up hole of the microphone unit is arranged opposite to the bottom, a set gap being arranged between the sound pick-up hole and the bottom; and a sound channel in communication with the sound pick-up hole and an outer space, and led out of the first side wall. The sound channel of the microphone is arranged on a side of the sound pick-up hole of the microphone, other than directly opposite to the sound pick-up hole of the microphone, which can effectively reduce wind noise and improve the sound pick-up quality.

The invention provides a sound power level test tool. The tool comprises a supporting rod and an arc segment. The arc segment is positioned within a vertical plane. One end of the arc segment is detachably connected to the supporting rod in a rotatable manner. The arc segment is provided with multiple microphone clamps arranged at intervals. Since the arc segment can be detachably connected to the supporting rod, a test radius can be changed, and the test efficiency can be improved. The sound power level test tool has a simple structure, is convenient to mount and dismount, and is high in test efficiency.

The embodiment of the invention discloses a home environment monitoring method and system based on mobile terminal control. The system comprises a home monitoring console, a home monitoring client ona mobile terminal, and a camera and a microphone deployed in a room. In the home environment monitoring method and system disclosed by the embodiment of the invention, after a user logs to the home monitoring console by the home monitoring client, the home monitoring console sends a home monitoring operation interface to the home monitoring client, and the home monitoring operation interface includes a room selection area, an audio control area and a video control area, such that the user can perform an operation of audio collection on a selected room via the room selection area and the audiocontrol area, and also can perform video monitoring on different rooms via the video control area. Compared with the conventional technology, the flexibility and the efficiency of home monitoring areimproved.

The invention belongs to the technical field of earphone manufacturing, and particularly relates to a microphone mounting structure and a wireless earphone, and the microphone mounting structure comprises a handle part, an elastic fixing part, an internal circuit board and a microphone; a through microphone appearance hole is formed in the bottom surface of the handle part which is internally provided with a cavity; the elastic fixing piece is arranged in the cavity, one end is provided with a mounting groove, and the other end is provided with a first opening; one end of the first opening iscommunicated with the microphone appearance hole, and the other end is communicated with the mounting groove; a first end of the internal circuit board is fixed in the mounting groove, a sound transmission groove is formed in the first end, and the sound transmission groove is communicated with the first opening; a microphone with a sound receiving hole is fixed at one end of the surface of the internal circuit board, and the sound receiving hole is communicated with the sound transmission groove. According to the wireless earphone provided by the embodiment of the invention, one end of the sound transmission groove of the internal circuit board is connected with the microphone sound receiving hole, and the other end is aligned with the Kirschner appearance hole, so that a microphone soundreceiving function is realized, production and assembly steps are convenient, the structure is simple, and the production cost is low.

The invention discloses an electronic toy and relates to the field of toys. The electronic toy solves the problems that an existing plush toy is single in function, and appeal to children can be lost easily. According to the technical scheme, the electronic toy comprises an electronic toy body, a charging base and a USB charger with a USB line, wherein the electronic toy body, the USB charger and the charging base and separable, the charging base comprises a USB interface, a charging chip and a charging probe, and a charging groove, a rechargeable battery, a power source management module, a voltage stabilizer, a WIFI communication module, a central processor, an audio encoding and decoding module, a loudspeaker and a microphone are arranged in the electronic toy body.