Abstract: Embodiments of the present invention provide a method and an apparatus for processing audio in video communication. The method includes: acquiring audio data and audio source position information corresponding to the audio data in the video communication, and performing longitudinal-depth processing on the audio data according to the audio source position information. According to the embodiments of the present invention, the audio data and the audio source position information corresponding to the audio data in the video communication are acquired first, and then the longitudinal-depth processing is performed on the audio data according to the acquired audio source position information to make it be audio data that provides a longitudinal-depth feeling that matches the audio source position information, so that sounds generated by objects at different front/back positions can be distinguished in the video communication.

Abstract: A system for providing multi-language conference is provided. The system includes conference terminals and a multipoint control unit. The conference terminals are adapted to process a speech of a conference site, transmitting the processed speech to the multipoint control unit, process an audio data received from the multipoint control unit and output it. At least one of the conference terminals is an interpreting terminal adapted to interpret the speech of the conference according to the audio data transmitted from the multipoint control unit, process the interpreted audio data and output the processed audio data. The multipoint control unit is adapted to perform a sound mixing process of the audio data from the conference terminals in different sound channels according to language types, and then sends mixed audio data after the sound mixing process to the conference terminals.

Abstract: A method for processing multi-channel audio signals includes receiving L channel audio signals from participating conference terminals, decoding the L channel audio signals, and determining N conference terminals whose audio signals are to be mixed from the participating conference terminals according to the data obtained through decoding; selecting an encoder as a common encoder from L?N encoders of the participating conference terminals except the N conference terminals whose audio signals are to be mixed, encoding decoded audio signals of the N conference terminals whose audio signals are to be mixed, and sending encoded data to conference terminals corresponding to the L?N encoders (indicating that the number of encoders is equal to the value of L minus N); and updating encoding status information of L?N?1 encoders except the common encoder to synchronize with encoding status information of the common encoder.

Abstract: The present invention relates to the field of communications technology, and more particularly, to a method, a device and a communication terminal for adjusting volume adaptively. The present invention discloses a method for adjusting volume adaptively, including: receiving an audio signal from a sound source; obtaining information about the sound source corresponding to the audio signal and input and output gain parameters corresponding to the information about the sound source; and adjusting input volume and output volume according to the input and output gain parameters. The present invention also discloses an adaptive volume adjusting device, comprising a receiving unit, an obtaining unit and an adjusting unit. In addition, the present invention discloses a communication terminal comprising the preceding device. The advantage of the present invention is to automatically adjust input volume and output volume so that the users can hear an ideal voice.

Abstract: A method for processing multi-channel audio signals includes receiving L channel audio signals from participating conference terminals, decoding the L channel audio signals, and determining N conference terminals whose audio signals are to be mixed from the participating conference terminals according to the data obtained through decoding; selecting an encoder as a common encoder from L?N encoders of the participating conference terminals except the N conference terminals whose audio signals are to be mixed, encoding decoded audio signals of the N conference terminals whose audio signals are to be mixed, and sending encoded data to conference terminals corresponding to the L?N encoders (indicating that the number of encoders is equal to the value of L minus N); and updating encoding status information of L?N?1 encoders except the common encoder to synchronize with encoding status information of the common encoder.

Abstract: A caption display method in a video communication includes the following steps. A video communication is established. Speech signals of a speaker are recognized and converted to text signals. The text signals and picture video signals that need to be received by and displayed to other conference participators are superposed and encoded, and are sent through the video communication. A video communication system and device are also described. Users directly decode display pictures and character information corresponding to a speech. The method is simple, and a real-time performance is high.

Abstract: A system for providing multi-language conference is provided. The system includes conference terminals and a multipoint control unit. The conference terminals are adapted to process a speech of a conference site, transmitting the processed speech to the multipoint control unit, process an audio data received from the multipoint control unit and output it. At least one of the conference terminals is an interpreting terminal adapted to interpret the speech of the conference according to the audio data transmitted from the multipoint control unit, process the interpreted audio data and output the processed audio data. The multipoint control unit is adapted to perform a sound mixing process of the audio data from the conference terminals in different sound channels according to language types, and then sends mixed audio data after the sound mixing process to the conference terminals.