Electric cochlea Chinese fixed electric stimulation amplitude changing pattern in vitro voice processing equipment
A technology of speech processing and cochlear implants, which is applied in speech analysis, speech recognition, ear therapy, etc. It can solve the problems of difficult speech recognition, slow DSP calculation speed, and large differences, so as to achieve good speech recovery ability and improve speech recognition rate. , the effect of preserving the characteristics of the tone color
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[0047] Digital signal processor 1 adopts TI's TMS320VC5509A low-power processor, which improves the system's computing capability and reduces system power consumption. The maximum frequency of the processor is 200MHz, and its calculation function is very powerful, which is very suitable for the application requirements of portable devices. At the same time, due to the large RAM space in the chip, there is no need to redesign the expansion circuit. The chip also integrates rich peripheral interfaces, which can realize seamless connection with many peripheral devices, thus saving the design of peripheral components and simplifying the system structure.
[0048] The audio amplification sampling module 4 adopts micro-electromechanical (MEMS) silicon miniature microphone SP0103NC3-3 and WM8950 audio amplification sampling filter chip produced by Knowles Electronics LLC. Among them, the silicon miniature microphone SP0103NC3-3 is a low-cost, high-performance new technology to repla...
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