In-vehicle sound partition control device and method, controller and medium

Abstract

The present invention relates to a sound zone control device and method in a vehicle, a controller and a medium. The device includes a main control module, a power amplifier module and a plurality of directional transmission modules. There is a channel between the power amplifier module and each directional transmission module. The transmission module corresponds to a sound area in the car; the main control module is configured to determine the channel to be sent by the audio signal, obtain the channel number to be sent, and send the channel number and the audio signal to the power amplifier module; the power amplifier module is configured to transmit the audio signal The signal is amplified by a preset multiple, and the amplified audio signal is sent to the directional transmission module corresponding to the channel number to be sent; the directional transmission module is configured to directional transmit the amplified audio signal to the corresponding sound area. Based on the strong directivity of the parametric loudspeaker, the invention realizes the directional transmission of the sound, so that the driver and passengers in the car only receive the sound related to it, which is simple and easy to implement, has strong adaptability to the whole vehicle environment, and has wider and more flexible applications.

Description

technical field [0001] The invention relates to the technical field of vehicle audio systems, in particular to a device and method for controlling sound partitions in a vehicle, a controller and a medium. Background technique [0002] As the market share of high-end automotive systems increases, more and more users are beginning to pursue a more comfortable and pleasant in-car audio environment. Under normal driving conditions, there will be many different sounds in the car, such as navigation prompts, music, hands-free calls and in-car alarms, etc., but not all passengers in all positions need to receive all of the above sounds. For example, navigation prompts and in-car alerts are important to the driver, but they can affect the passenger's enjoyment of music, and the sound of the passenger's music, radio, movies, etc., can also affect the driver. Therefore, how to enable the driver and passengers to have their own independent audio zone and realize the personalized audio...

AI Technical Summary

Problems solved by technology

However, in the existing independent sound zone solutions, headrest speakers equipped with micro-speaker technology and electric flat speakers on the roof are usually required to achieve, and the digital signal needs to be specially processed to adapt to the interior space and speakers. to blend in with music, speech, or noise from other areas

The above solution has high requirements for the speakers of the audio system and complex algorithms. It needs special debugging for different interior environments and passenger positions, and has poor applicability to the entire vehicle environment.

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