基于COTS的人工耳蜗体外语音处理器设计与实现

Design of COTS based speech signal processor for cochlear implant

人工耳蜗是目前治疗深度或重度耳蜗性聋的唯一有效的办法,由体外语音处理器和植入体组成。介绍了一种基于商用现货原则(COTS,Commercial-Off-The-Shelf)的低功耗人工耳蜗体外语音处理器的设计与实现:系统选用低功耗立体声A/D芯片CS53L21实现前端处理和采集语音信号;利用通用16位定点DSP芯片TMS320VC5502实现语音处理CIS算法;借用RFID射频芯片MLX90121向植入体传输能量并与其进行双向数据通信。

Cochlea implant which is composed of external body speech processor and internal receiver-stimulator can provide a sense of sound to people who are deaf or deeply hearing-impaired. Development of low power speech processor for cochlear implant based on Commercial-Off-The-Shelf （COTS） is described. The low power stereo A/D CS53L21 is used to collect the speech signal, the speech signal is processed by the TMS320VC5502 with CIS algorithm, and the RFID chip MLX90121 is used to communicate with the internal receiver-stimulator via RF link.