dueros用例 怎么采集两个mic的数据并保存的SD卡中呢？目前只能保存rec_engine_data_read(voiceData, ONE_FRAM_SIZE, 110 / portTICK_PERIOD_MS);中voiceData数据，这个应该是重采样后的数据，只有1路数据。
dueros 能通过修改重采样后的通道数获取两路mic吗？我尝试了一下，采集到的数据信号不对
i2s_stream_cfg_t i2s_cfg = I2S_STREAM_CFG_DEFAULT();
i2s_cfg.type = AUDIO_STREAM_READER;
i2s_stream_reader = i2s_stream_init(&i2s_cfg);
audio_element_info_t i2s_info = {0};
audio_element_getinfo(i2s_stream_reader, &i2s_info);
i2s_info.bits = 16;
i2s_info.channels = 2;
i2s_info.sample_rates = 48000;
audio_element_setinfo(i2s_stream_reader, &i2s_info);
#if 1
rsp_filter_cfg_t rsp_cfg = DEFAULT_RESAMPLE_FILTER_CONFIG();
rsp_cfg.src_rate = 48000;
rsp_cfg.src_ch = 2;
rsp_cfg.dest_rate = 16000;
rsp_cfg.dest_ch = 1**;------------（此处修改为2，采集到的信号不正常啊）**
rsp_cfg.type = AUDIO_CODEC_TYPE_ENCODER;
audio_element_handle_t filter = rsp_filter_init(&rsp_cfg);
#endif