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

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...

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

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