Audio frequency following device and realization method thereof
A technology that follows the device and the implementation method, applied in speech analysis, instruments, etc., can solve problems such as poor performance portability, and achieve the effects of saving design time, reducing power consumption, and simplifying processing technology
Active Publication Date: 2018-08-31
顶力(广州)视听科技有限公司
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[0003] In view of the above technical problems, the embodiment of the present invention provides an audio follower device and its implementation method, which can solve the technical problem of poor performance and portability of the product in the production process of the audio device in the prior art
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0033] see figure 1 , figure 1 It is a schematic structural diagram of an embodiment of an audio follower device in an embodiment of the present invention. like figure 1 As shown, the audio following device 1 includes an analog-to-digital converter 100, a digital signal processor 200, a memory 300, a microcontroller 400 and a digital-to-analog converter 500, and the digital signal processor is connected to the analog-to-digital converter, memory, and microcontroller respecti...
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The embodiment of the invention discloses an audio frequency following device and a realization method thereof; the method comprises the following steps: obtaining target output parameters of a targetmachine when the audio frequency following device is in a leaning mode, and obtaining initial output parameters of the audio frequency following device; continuously adjusting a filtering coefficientof an adaptive filter in a digital signal processor until the adjusted audio frequency following device output parameter is same with the target output parameter, and storing a corresponding filtering parameter of the adaptive filter; connecting the input end of the adjusted audio frequency following device with an external audio frequency signal when the audio frequency following device is in awork mode, connecting the output end of the audio frequency following device with a power amplifier, and playing audio frequency. The method can transfer excellent characteristics of the target machine onto a new product, thus saving designing time of engineers; the digital signal processor can replace a conventional hardware, thus saving cost, and simplifying processing technology.
Description
technical field [0001] The present invention relates to the technical field of audio digital signal processing, in particular to an audio follower and an implementation method thereof. Background technique [0002] In the prior art, in the audio field, it is often encountered that common indicators measured by two audio devices, such as signal-to-noise ratio, harmonic distortion, and frequency response, are the same. But in terms of timbre, there is a big difference. Even with the same audio device, a wrong electronic component is soldered or a component is slightly moved when designing the circuit board, which will bring about a big difference in timbre. . It is precisely because audio devices cannot fully reflect the characteristics of the product with hard indicators, and the characteristics of good products are difficult to be transplanted to new products. Even after transplanting, the performance of new products is still defective. The performance of audio devices afte...
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IPC IPC(8): G10L19/04G10L19/26
CPCG10L19/04G10L19/26
Inventor 盛佳瑞周鉴星
Owner 顶力(广州)视听科技有限公司