A method and system for adjusting the volume of a vehicle audio source

Abstract

The invention discloses a vehicle-loaded sound source sound volume adjustment method which combines driving computer information like rotation speed, vehicle speed and driving information. The vehicle-loaded sound source sound volume adjustment method can bring some compensation to audio output gain or frequency response of a vehicle receiver at high-rotation speed, thereby preventing noises generated at low vehicle speed and high rotation speed from interfering a driver and a passenger from listening to vehicle receiver audio. Under different driving patterns, due to changes of shift opportunity or output way of an engine, through obtaining of driving pattern information, different gain / frequency response changing curves are selected through the driving patterns, and listening effect of the passenger is improved. Moreover, since a certain part of microwave integrated circuits (Mic) sound collecting reversal processing and the present road condition information obtained through a navigator and the present weather information obtained through a communication network are combined for gain and reduction, tire noises, wind speed or any other environment factors which affect noises inside an automobile are reduced.

Description

technical field [0001] The invention relates to H electrics in the patent classification number; H03 basic electronic circuit; H03G amplification control; H03G3 / 00 amplifier or frequency converter gain control; H03G3 / 20 automatic control; 32 Sound level control depending on ambient noise level. Background technique [0002] Existing car stereos can adjust the output volume according to the current vehicle speed and other corresponding information, which has achieved a relatively good auditory effect. There are two main implementation methods as follows: [0003] 1. According to the vehicle speed signal provided by the trip computer or the navigation module, adjust the existing audio output amplitude in the audio processor accordingly, and according to the increase of the vehicle speed, the audio output amplitude will gradually increase due to the influence of wind resistance. [0004] Although the increase in vehicle speed will cause tire noise, wind resistance and engine ...

AI Technical Summary

Problems solved by technology

[0006] When the Mic collects the sound from the outside of the car or inside the car, it will treat the effective audio information as noise, which will directly offset the communication sounds of the people in the car, resulting in communication barriers for the people in the car

And if there are other vehicles or equipment outside the car that emit a warning sound, because this part of the sound has been offset as noise, it is easy to cause the driver to be unable to judge the warning sound outside the car, resulting in an increase in the probability of traffic accidents

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