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请问怎么修改AIC3204采样率为8Khz?

Other Parts Discussed in Thread: TMS320C5535

如题,我使用的DSP开发板是TMS320C5535,例程中AIC3204采样率设置的48khz,我想要更改为8khz.。如下图:

读写音频数据的代码如下:

更改过采样了之后,输出的音频效果很差。还有我想问可以采用中断的方式读写音频数据吗?或者查询的方式。谢谢回答!