Method for controlling multichannel sound distributing and switching of vehicle-mounted terminal

A technology for voice distribution and vehicle-mounted terminals, applied in the direction of stereo circuit arrangement, etc., to achieve the effect suitable for widespread promotion

Inactive Publication Date: 2014-03-26
大连现代高技术集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vehicle-mounted intelligent terminals have integrated functions such as GPS automatic voice announcement, IC card charging, and mobile video playback. Problems of audio signal distribution and switching between audio playback and GPS automatic station announcement voice playback

Method used

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  • Method for controlling multichannel sound distributing and switching of vehicle-mounted terminal
  • Method for controlling multichannel sound distributing and switching of vehicle-mounted terminal

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Embodiment Construction

[0011] Such as figure 1 , figure 2 As shown, the control method for multi-channel voice distribution and switching of the vehicle-mounted terminal provided by the present invention is to generate multiple channels and different voices inside the vehicle-mounted terminal, including advertising video audio, terminal station announcement voice, terminal local prompt voice, that is, terminal native voice Machine card payment prompt voice. Through the software mixer inside the terminal, the HDMI signal audio embedding control circuit, the local voice power amplifier circuit, and the in-vehicle audio and video playback system with a hardware mixing controller, HDMI signal audio de-embedding circuit, and vehicle voice playback power amplifier circuit , realize that the car terminal and the car audio system play different voices at the same time, and can control the car audio system to play multiple different voices.

[0012] The specific multi-channel voice distribution and contro...

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Abstract

The invention discloses a method for controlling multichannel sound distributing and switching of a vehicle-mounted terminal. A software sound mixer comprising a six-path input sound channel and a four-path output sound channel is arranged in the vehicle-mounted terminal; after audio signals of input video accompanying sounds, terminal station reporting sounds and terminal local prompting sounds are mixed through the software sound mixer, the video accompanying sounds and the terminal station reporting sounds are implanted on a left sound channel and a right sound channel of an HDMI signal and played through an audio/video playing device; the terminal local prompting sounds are output to a terminal local power amplifier via another two sound channels, and voice distribution on the vehicle-mounted terminal is achieved; when one video accompanying sound or terminal station reporting sound is played, volume of other audio signals decreases by controlling the software sound mixer and the implantation of and the HDMI or implantation is stopped and recovers the original state after the video accompanying sound or terminal station reporting sound is played, and switching control is achieved. By means of the method, one device can have the function of playing various sounds, and a sound system in the vehicle can be controlled to play various paths of different sounds.

Description

technical field [0001] The invention relates to a multi-channel voice playing technology, in particular to a control method for multi-channel voice distribution and switching of a vehicle-mounted terminal. Background technique [0002] At present, there are many types of bus equipment, each of which has different purposes, such as GPS automatic voice station announcement, IC card toll terminal, mobile video and TV playback system, etc. These devices all involve audio playback functions, but because these devices are Relatively independent setting and use, and each playback system is also relatively independent, so the repeated setting of the vehicle equipment is caused, making the installation, use and maintenance of the equipment more and more difficult. [0003] With the improvement of the intelligence of vehicle equipment, the integration of equipment functions will also have a qualitative change. Vehicle-mounted intelligent terminals have integrated functions such as GP...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R5/04
Inventor 刘威刘成利
Owner 大连现代高技术集团有限公司
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