audio_recorder 的 源通道顺序 (AUD-5630)

[Ahypnis]

我的麦克风型号是MSM261S4030H0R。 我想知道的是如果是可选左右声道的麦克风的话，比如我选择了右声道，我要如何设置这个源通道的顺序？用于SR的唤醒功能。 如果是左声道的话，又需要怎么设置？ {"i2s_read", "raw"};

/**

• @brief Channel definition used to show the source channel order.
• For 1 mic solution, the src_order should contains two items, DAT_CH_0 must be there,
• and DAT_CH_1 should be used to identify the reference channel.
• e.g.: the first channel is the reference data, and the second contains data of mic,
• the src_order should be [DAT_CH_1, DAT_CH_0]
• For 2 mic solution, the src_order should contains four items, DAT_CH_0 and DAT_CH_1 must be there,
• and DAT_CH_2 should be used to identify the reference channel.
• e.g.: the first channel is the reference data, the second and the fourth channel contains data of mic,
• the src_order should be [DAT_CH_2, DAT_CH_0, DAT_CH_IDLE, DAT_CH_1] */ enum _data_chan_type { DAT_CH_IDLE = -1, DAT_CH_0, DAT_CH_1, DAT_CH_2, };

// 这里是SR配置部分， 这个通道顺序， 我将麦克风设置为右声道这样子可以唤醒 recorder_sr_cfg_t recorder_sr_cfg = DEFAULT_RECORDER_SR_CFG(); recorder_sr_cfg.afe_cfg.memory_alloc_mode = AFE_MEMORY_ALLOC_MORE_PSRAM; recorder_sr_cfg.afe_cfg.wakenet_init = true; recorder_sr_cfg.multinet_init = true; recorder_sr_cfg.afe_cfg.aec_init = false; recorder_sr_cfg.afe_cfg.agc_mode = AFE_MN_PEAK_NO_AGC;

recorder_sr_cfg.afe_cfg.pcm_config.mic_num = 1; recorder_sr_cfg.afe_cfg.pcm_config.ref_num = 1; recorder_sr_cfg.afe_cfg.pcm_config.total_ch_num = 2;

recorder_sr_cfg.input_order[0] = DAT_CH_1; recorder_sr_cfg.input_order[1] = DAT_CH_0;

// 如果麦克风选择了左声道的要这样子配置才能唤醒 recorder_sr_cfg.input_order[0] = DAT_CH_0; recorder_sr_cfg.input_order[1] = DAT_CH_1;