179results about How to "Clear voice" patented technology

This invention relates to a set-top box of IPTV including an IP interface unit, a D/A converter, a peripheral interface unit, a memory and a device with a network processor and a high speed decode chip as the core, in which, the network processor is injected with a kit software of an inserted linuk operation system as the core to receive and process IP data by the interface and transmit audio and video data to the high speed decode chip, which decodes the data and outputs the signals by the D/A converter chip and the interface to realize functions of watching, selecting programs of IPTV, sending and receiving mails and browsing web pages by the set-top box.

Provided are a method and an apparatus for increasing call quality while reducing consumption of bit rates in immersive multimedia communication. A method of transmitting, by a terminal device, an audio signal to a counterpart terminal device, includes: extracting head tracking information of a user of the counterpart terminal device from a packet received from the counterpart terminal device; predicting a head direction of the user of the counterpart terminal device after a predetermined time period, based on the extracted head tracking information; generating audio output signals by combining audio input signals received via a plurality of microphones, based on the predicted head direction; and transmitting information about the predicted head direction and a sound frame in which the audio output signals are compressed, to the counterpart terminal device.

To carry out processing to be executed upon occurrence of an emergency, a mobile phone includes a power control portion for supplying driving power, a RAM capable of storing data in the state where the driving power is not supplied from the power control portion, a crime prevention switch for detecting occurrence of an emergency, and a control portion which is driven by the driving power supplied from the power control portion. The control portion stores an emergency flag in an ON state indicating an emergency mode in the RAM in response to detection of the emergency by the crime prevention switch, and carries out emergency processing. When the control portion is activated as the supply of the driving power from the power control portion is started, it carries out the emergency processing if the emergency flag in the ON state is stored in the RAM.

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.

Disclosed is an equalization apparatus and method based on audiogram. The equalization method includes the steps of a) outputting a reference sound having reference frequency and intensity for approximate assumption of auditory threshold, b) determining a start sound corresponding to an assumed value of the auditory threshold while calling a sound having intensity different from a prior sound at a sound source memory depending on whether a user has received an answering signal in response to the reference sound, c) outputting a first test sound whose intensity is controlled at a value set prior to the start sound, having the reference frequency, d) calling a test sound having intensity and frequency different from the prior sound at the sound source memory depending on whether the user has received the answering signal, e) storing data on reception of the answering signal of the user in response to the test sound, f) repeating the steps d) to e), g) determining the auditory threshold per previously set fiequency band using the reception data of the answering signal, and h) performing equalization depending on the auditory threshold per the determined frequency.

The present invention relates to an ear microphone for providing clear sound by preventing echo and howling phenomena by blocking external noise, and for providing an effective telephone call in a noisy environment by improving the recognition ability of a voice-recognizing device. For the ear microphone, a connector for connection to an external device, a control unit for controlling the ear microphone overall, and an earphone unit to be worn by a user for outputting or inputting voice are electrically connected to each other through cables. The earphone unit consists of a first earphone unit which includes first and second speakers wearable on the ear, a first microphone having directivity, and a second earphone unit which includes a third speaker. For the control unit, a grounding terminal and one terminal of the control unit are connected to the connector such that the other terminal is connected to the first to third speakers, and one terminal is connected to the connector such that the other terminal is connected to the first microphone. The microphone output terminal is configured to be connected to a resistor in series. The third speaker is configured as a voltage-dividing resistor on a speaker input terminal. Each voltage dividing resistor is differently designed for the first and second speakers such that the second speaker has phase characteristics that are opposite those of the first speaker, and at the same time has a voltage different from the first speaker. A negative terminal of the first speaker and a positive terminal of the second speaker connected to the speaker output terminal are connected to a volume-adjusting unit.

The invention discloses a wearable miniature camera recording device for operation and aims at solving a disadvantage that a lens of an existing device can not be directed at a key region in operation when the existing device records. The device comprises a miniature camera, a wireless transmitter, a wireless receiver and a rechargeable cell, the wireless transmitter is connected with a video and audio output line of the camera, and the device is characterized in that: the miniature camera is assembled on a wearable frame and the lens of the miniature camera is just between the left eye and the right eye of a doctor when the doctor wears the frame; the wearable frame can be an eyeglasses frame or a head band; and the wireless receiver is arranged in an area outside the wearable frame, in which a signal transmitted by the wireless transmitter can be received. The device is used for recording images and sound in operation, and storing, editing, replaying or live broadcasting the images and the sound.

The invention discloses a sight connection-based voice command issuing device and method. The sight connection-based voice command issuing method comprises steps of 11, capturing and shooting to obtain first video data; 12, analyzing first video data and judging whether a face is toward a first camera and continuously stays for t1 or not, obtaining azimuth information and executing a step 2 if yes and continuously executing the step 11 if no; 2, adjusting a second camera according to the azimuth information, enabling the second camera to shoot the face to obtain second video data, and controlling a light transmitter to transmit light to human eyes so as to obtain reflective images of the human eyes; 3, analyzing second video data to obtain real-time three-dimensional coordinates of the face and judging whether the human eyes stare the cameras or not according to human eye images and the reflective images and positions; 4, judging whether the human eye stare time exceeds t2 or not, identifying sight connection and sending a command to a corresponding voice collector if yes; 5, enabling the voice collector to collect voice, identifying voice to obtain semantic contents, providing the semantic contents for other devices to access, judging whether a conversion is finished or not, executing the step 1 if yes and ignoring the face relevant information in the first video data during the conversion if not.

The invention discloses a sound processing method and apparatus, a terminal and a computer readable storage medium. The method comprises the following steps: obtaining a plurality of first sound signals and a plurality of second sound signals collected by a plurality of microphones, wherein the first sound signals are generated by a first sound source, and the second sound signals are generated by a second sound source; determining relative positions of the first sound source and the plurality of microphones, and the relative positions of the second sound source and the plurality of microphones; separately allocating a first group of weights to the plurality of first sound signals obtained from the plurality of microphones, and allocating a second group of weights to the plurality of second sound signals obtained from the plurality of microphones; and performing sound mixing processing on the plurality of first sound signals and the plurality of second sound signals by using the first group of weights and the second group of weights. By adoption of the sound processing method and apparatus, a collection direction can be automatically selected for the sound mixing processing, and more effective sound signals can be collected.

The invention provides a bone conduction microphone. The bone conduction microphone comprises a shell, a seal cap connected with the shell, and a sound pick-up arranged in the shell. A connecting cylinder is arranged in the shell, and the sound pick-up is arranged in the connecting cylinder. With the structure, vibration on the shell can be prevented from entering into the sound pick-up through screening of the shell, noise can be avoided, and therefore sound articulation can be improved.

An earphone includes a housing, a speaker unit arranged in the housing, a sound guiding portion disposed on the housing, and a sound guiding tube disposed in the sound guiding portion such that an inner sound guiding channel and an outer sound guiding channel are formed in the sound guiding portion. The sound guiding portion has a sound output hole of the inner sound guiding channel and a sound output hole of the outer sound guiding channel. The sound output hole of the inner sound guiding channel protrudes from the sound output hole of the outer sound guiding channel. The sound waves in the inner sound guiding channel directly pass through the sound output hole of the inner sound guiding channel, and the sound waves in the outer sound guiding channel directly pass through the sound output hole of the outer sound guiding channel.

A speech interaction device includes an ascertaining section and a control section. The ascertaining section ascertains a direction of a speech utterer by audio emitted by the speech utterer. The control section controls directionality of audio output through a speaker when outputting audio toward the speech utterer, such that directionality of audio in the direction ascertained by the ascertaining section is higher than directionality of audio in other directions.

The invention discloses a multi-frequency wireless digital-analog compatible mobile communication device which comprises a voice acquisition device, a voice play device, a power device, a key device, a display device, a storage device, a radio-frequency device and a central processing device connected with the voice acquisition device, the voice play device, the power device, the key device, the display device, the storage device and the radio-frequency device. The device disclosed by the invention adopts a wireless digital communication special chip as a core and can realize the functions of digital voice communication, editing, short message receiving and sending and the like through a voice signal digital processing module, a channel coding/decoding function module, a radio-frequency device and interface design. The digital communication special chip has a high integration level and a simple structure, and is low in cost and convenient to manufacture; and with only one external storage chip, a radio-frequency device and corresponding peripheral application circuit, the digital communication function can be realized.

The invention relates to Chinese globeflower flower tea made by a cold soak method. The Chinese globeflower flower tea is prepared from the following compositions of 3-48 parts of Chinese globeflower flowers, 5-60 parts of honeysuckle flowers, 5-25 parts of licorice roots, 5-75 parts of lily bulbs, 5-60 parts of radix ophiopogonis, 3-60 parts of siraitia grosvenorii and 200-700 parts of Baijiu of 35-75 degrees. A preparation method of the Chinese globeflower flower tea disclosed by the invention comprises the following steps of absorbing traditional Chinese medicine juice prepared from the remaining traditional Chinese medicines through the Chinese globeflower flowers, and then drying the Chinese globeflower flowers so as to obtain the Chinese globeflower flower tea made by the cold soak method. The tea liquor obtained by brewing the Chinese globeflower flower tea not only has original delicate fragrance of the Chinese globeflower flowers but also has sweet and mellow taste of the traditional Chinese medicines. The Chinese globeflower flower tea has the efficacies of clearing heat, removing toxicity, relieving sore throat, nourishing the lung, nourishing yin for moistening dryness and relieving a cough, has favorable effects of preventing and treating pharyngitis, is convenient to brew and free from toxic and side effects, and can be drunk for a long term.