Automobile noise reduction method and system

Abstract

The invention discloses an automobile noise reduction method and system. The automobile noise reduction method comprises the steps of acquiring sound sources in a carriage through microphones arranged at different locations in the carriage; separating human voices from the sound sources; calculating locations of occupants in the automobile according to the acquired human voices by the different microphones; and opening an automobile voice box system for active noise reduction at the locations of the occupants. According to the invention, the automobile voice box system is used for active noise reduction, noises at the locations of the occupants in the carriage are effectively reduced, and the ride quality is improved.

Description

technical field

[0001] The invention relates to automobile technology, in particular to an automobile noise reduction method and system. Background technique

[0002] The noise of the car mainly comes from road noise, tire noise, wind noise and engine noise. All have high requirements. And in the prior art, the noise suppression in the automobile compartment is mainly by improving the sealing of the compartment, the shock absorption system of the chassis, the sound insulation effect of the engine compartment, and selecting silent tires. The above-mentioned technologies are all passive noise reduction technologies, which can indeed reduce the noise decibels in the cabin, but the degree of noise reduction is limited, especially when the car is running at high speed, the noise in the cabin is still very strong. Contents of the invention

[0003] In order to solve the above technical problems, the present invention provides an automobile noise reduction method, which is used...

Examples

Embodiment Construction

[0021] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0022] see figure 1 , the embodiment of the present invention, a kind of automobile noise reduction method, comprises:

[0023] S1. Collect the sound source in the car through the microphones arranged in different positions in the car;

[0024] S2. Separate the human voice from the sound source;

[0025] S3. Calculate the location of the people in the car according to the voices of people collected by different microphones;

[0026] S4. Turn on the car audio system, and perform active noise reduction on the location of the people in the car.

[0027] The car noise reduction method of this embodiment is active noise reduction, which uses microphones arranged in different positions in the car to collect the sound source (including human v...

technical field

[0001] The invention relates to automobile technology, in particular to an automobile noise reduction method and system. Background technique

[0002] The noise of the car mainly comes from road noise, tire noise, wind noise and engine noise. All have high requirements. And in the prior art, the noise suppression in the automobile compartment is mainly by improving the sealing of the compartment, the shock absorption system of the chassis, the sound insulation effect of the engine compartment, and selecting silent tires. The above-mentioned technologies are all passive noise reduction technologies, which can indeed reduce the noise decibels in the cabin, but the degree of noise reduction is limited, especially when the car is running at high speed, the noise in the cabin is still very strong. Contents of the invention

[0003] In order to solve the above technical problems, the present invention provides an automobile noise reduction method, which is used...

Examples

Embodiment Construction

[0021] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0022] see figure 1 , the embodiment of the present invention, a kind of automobile noise reduction method, comprises:

[0023] S1. Collect the sound source in the car through the microphones arranged in different positions in the car;

[0024] S2. Separate the human voice from the sound source;

[0025] S3. Calculate the location of the people in the car according to the voices of people collected by different microphones;

[0026] S4. Turn on the car audio system, and perform active noise reduction on the location of the people in the car.

[0027] The car noise reduction method of this embodiment is active noise reduction, which uses microphones arranged in different positions in the car to collect the sound source (including human v...

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