hi3516a 音频录制PT_LPCM类型的数据，源采样率是44100，录制的pcm文件播放有点慢放，调到48000采样率后播放正常，参数设置： AIO_ATTR_S stAioAttr;         stAioAttr.enSamplerate = 441000;         stAioAttr.enWorkmode =AIO_MODE_I2S_SLAVE;     stAioAttr.enBitwidth  = AUDIO_BIT_WIDTH_16;     stAioAttr.enSoundmode = AUDIO_SOUND_MODE_MONO;         stAioAttr.u32EXFlag = 1;     stAioAttr.u32FrmNum = 50;     stAioAttr.u32ChnCnt = 2;     stAioAttr.u32ClkSel = 0;         stAioAttr.u32PtNumPerFrm = 1152;     HI_S32 s32AiChnCnt = stAioAttr.u32ChnCnt;         HI_S32 s32Ret = HI3516A_COMM_AUDIO_StartAi(AiDev, s32AiChnCnt, &stAioAttr, oSamplerate, bResampleEn, 0); 追加：PT_LPCM协议类型 算是内置编码器编码类型吗