Speech signal processing method and vehicle-mounted electronic device

Abstract

The invention relates to a speech signal processing method and a vehicle-mounted electronic device. The method includes the following steps that: speech information is picked up; a vehicle identification code is acquired from a vehicle-mounted diagnostic system; the constant noises of a vehicle are acquired according to the vehicle identification code and mapping relations between pre-stored constant noises and vehicle identification codes of corresponding vehicle models, wherein the mapping relations between the pre-stored constant noises and vehicle identification codes of the correspondingvehicle models include the constant noises of different vehicle models and mapping relations between the constant noises of the different vehicle models and the vehicle identification codes of the corresponding vehicle models; and after the speech information is compared with the constant noises of the vehicle, the constant noises are eliminated. Since the constant noises introduced by the vehicleare obtained in advance, the constant noises can be directly eliminated during sound processing.

Description

【Technical field】 [0001] The invention relates to a voice signal processing technology, in particular to a voice signal processing method for eliminating noise in a vehicle environment and vehicle electronic equipment. 【Background technique】 [0002] Today's voice interaction methods have been widely used in many technical fields. In vehicle-mounted electronic equipment, the use of voice for interaction also has a broad application space. [0003] However, in the car environment, there are many noises, such as: music in the car, wind noise, tire noise, engine noise, etc. These noises will have a negative impact on the collection and recognition of speech, reducing the accuracy of speech signal interaction. [0004] At present, the noise elimination in the speech signal generally adopts a DSP (Digital Signal Processing, digital signal processing) device, cooperates with multiple microphones for common processing, and reduces the noise. However, this type of solution needs ...

AI Technical Summary

Problems solved by technology

However, this type of solution needs to use multiple microphones and DSPs on the hardware, and the hardware cost is relatively high; at the same time, because the microphones are installed in electronic equipment, the layout of each microphone is strictly limited by space, direction, distance, structure, etc. Restrictions play a certain role in eliminating noise; and this solution cannot eliminate the audio noise introduced by the EQ (Equalizer, equalizer) processing of the car machine

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