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Cochlear implant stimulation strategy based on wavelet transform: Toward DSP real time implementation

机译:基于小波变换的人工耳蜗刺激策略:面向DSP的实时实现

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This paper discuses the real-time implementation of a cochlear implant strategy based on wavelet transform (WT). The cochlear implant converts in real time, sounds perceived from the outside, into electrical pulses that stimulate nerve endings in the cochlea. These electrical stimuli are interpreted by the brain as sounds. To achieve a real-time electrical stimulation strategy, optimization steps have been taken. These steps consist of using dynamic link libraries, making efficient memory allocation and performing fixed-point arithmetic. Using these steps, we have been able to reduce the processing time to approximately 10.49μs on a 720MHz TMS320C6416 DSP board. So, we can note that the execution time represents only about 21% of the minimum biphasic stimulation pulse width (25μs/phase).
机译:本文讨论了基于小波变换(WT)的人工耳蜗植入策略的实时实现。耳蜗植入物可以将外界的声音实时转换为电脉冲,刺激耳蜗的神经末梢。这些电刺激被大脑解释为声音。为了实现实时电刺激策略,已经采取了优化步骤。这些步骤包括使用动态链接库,进行有效的内存分配和执行定点算法。通过这些步骤,我们已经能够将720MHz TMS320C6416 DSP板上的处理时间减少到大约10.49μs。因此,我们可以注意到执行时间仅占最小双相刺激脉冲宽度(25μs/相)的21%。

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