Audio processing method and system for reducing resonance of door metal plate and loudspeaker
An audio processing and loudspeaker technology, which is applied in the field of audio processing methods and systems to reduce the resonance between door sheet metal and loudspeakers, and can solve problems such as low speech recognition rate and loudspeaker distortion
Inactive Publication Date: 2021-10-01
JIANGLING MOTORS
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Problems solved by technology
[0005] Based on this, the purpose of the present invention is to provide an audio processing method and system for reducing the resonance between the door sheet metal and the speaker, so as to solve the problem of speaker and door sheet metal resonance in the prior art and cause speaker distortion, resulting in speech recognition in specific scenarios. low rate problem
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[0048] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0049] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.
[0050] Unless otherwise def...
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The invention provides an audio processing method and system for reducing resonance of a door metal plate and a loudspeaker. The method comprises the steps that the resonance frequency range of the door metal plate and the loudspeaker in a current vehicle is determined; the maximum fixed resonance frequency point of the door metal plate and the loudspeaker is detected according to the maximum resonance intensity in the resonance frequency range; the audio output gain within the range before and after the maximum fixed resonance frequency point is reduced through the DSP, so that the output power within the range before and after the maximum fixed resonance frequency point is reduced. According to the method, the resonance intensity of the loudspeaker and the door metal plate within the range before and after the maximum fixed resonance frequency point can be reduced, so that the distortion intensity of the loudspeaker can be greatly reduced, the recognition rate of a voice system is improved, and the use experience of a user is correspondingly improved.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to an audio processing method and system for alleviating resonance between door sheet metal and loudspeakers. Background technique [0002] With the rapid development of the Internet of Vehicles technology, the smart cockpit is one of the most widely used directions of the Internet of Vehicles, and the voice interaction function is one of the key functions of the smart cockpit. [0003] In the prior art, one of the evaluation criteria for judging whether the voice interaction experience is excellent is the voice recognition rate. The speech recognition rate relies on the microphone in the car to collect the sound source in the car, and eliminates the background noise to leave the human voice for the speech system to analyze and process. The speech recognition rate is judged according to the misrecognition and omission of the speech system recognition. high and low. [0004] Ho...
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Patent Timeline
Login to View More IPC IPC(8): G10L15/20G10L15/22G10L15/28H04R3/00
CPCG10L15/20G10L15/22G10L15/28H04R3/00G10L2015/223
Inventor 胡东阳刘峰学王爱春黄少堂刘斌
Owner JIANGLING MOTORS