Pendant_Rtc_Toy/main/audio_codecs/es8311_audio_codec.cc
Rdzleo 93f0e19d1d 初始化项目:精灵吊坠 RTC 语音助手 + VEML7700 石头同频匹配
ESP32-S3 吊坠设备固件,集成火山引擎 RTC 语音助手、蓝牙配网、
VEML7700 环境光传感器驱动及石头同频匹配交友功能。

VEML7700 驱动:
- 基于 ESP-IDF i2c_master API 实现,复用项目 I2cDevice 基类
- 支持 ALS + White 双通道、自动量程、Vishay 非线性校正
- 3 次采样取中位数过滤偶发异常

石头同频匹配算法(双维度):
- 维度1:光谱比值 ALS/White(石头固有光学特征,不随光照强度变化)
- 维度2:亮度等级(5级对数划分,排除极端环境差异)
- 比值阈值 15%,实测同石头姿势变化波动 1.6%~9.6%,安全余量充足

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 11:43:57 +08:00

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#include "es8311_audio_codec.h"
#include <esp_log.h>
static const char TAG[] = "Es8311AudioCodec";
Es8311AudioCodec::Es8311AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
gpio_num_t pa_pin, uint8_t es8311_addr, bool use_mclk) {
duplex_ = true; // 是否双工
input_reference_ = false; // 是否使用参考输入,实现回声消除
input_channels_ = 1; // 输入通道数
// output_channels_ = 2; // 输出通道数 - 配置这行代码了RTC才可以正常加入房间但是开机播报声音会尖锐
output_channels_ = 2; // 输出通道数 - 立体声,确保与驱动默认兼容
input_sample_rate_ = input_sample_rate;
output_sample_rate_ = output_sample_rate;
pa_pin_ = pa_pin;
CreateDuplexChannels(mclk, bclk, ws, dout, din);
// Do initialize of related interface: data_if, ctrl_if and gpio_if
audio_codec_i2s_cfg_t i2s_cfg = {
.port = I2S_NUM_0,
.rx_handle = rx_handle_,
.tx_handle = tx_handle_,
};
data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
assert(data_if_ != NULL);
// Output
audio_codec_i2c_cfg_t i2c_cfg = {
.port = i2c_port,
.addr = es8311_addr,
.bus_handle = i2c_master_handle,
};
ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
assert(ctrl_if_ != NULL);
gpio_if_ = audio_codec_new_gpio();
assert(gpio_if_ != NULL);
es8311_codec_cfg_t es8311_cfg = {};
es8311_cfg.ctrl_if = ctrl_if_;
es8311_cfg.gpio_if = gpio_if_;
es8311_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_BOTH;
es8311_cfg.pa_pin = pa_pin;
es8311_cfg.use_mclk = use_mclk;
// 🎯 优化硬件增益设置,降低杂音
es8311_cfg.hw_gain.pa_voltage = 3.3; // 降低PA电压减少杂音
es8311_cfg.hw_gain.codec_dac_voltage = 3.3; // 保持DAC电压
codec_if_ = es8311_codec_new(&es8311_cfg);
assert(codec_if_ != NULL);
esp_codec_dev_cfg_t dev_cfg = {
.dev_type = ESP_CODEC_DEV_TYPE_OUT,
.codec_if = codec_if_,
.data_if = data_if_,
};
output_dev_ = esp_codec_dev_new(&dev_cfg);
assert(output_dev_ != NULL);
dev_cfg.dev_type = ESP_CODEC_DEV_TYPE_IN;
input_dev_ = esp_codec_dev_new(&dev_cfg);
assert(input_dev_ != NULL);
esp_codec_set_disable_when_closed(output_dev_, false);
esp_codec_set_disable_when_closed(input_dev_, false);
ESP_LOGI(TAG, "Es8311AudioCodec初始化完成");// Es8311AudioCodec初始化完成
ESP_LOGI(TAG, "Codec cfg: in_ch=%d out_ch=%d in_sr=%d out_sr=%d", input_channels_, output_channels_, input_sample_rate_, output_sample_rate_);
}
Es8311AudioCodec::~Es8311AudioCodec() {
ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
esp_codec_dev_delete(output_dev_);
ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
esp_codec_dev_delete(input_dev_);
audio_codec_delete_codec_if(codec_if_);
audio_codec_delete_ctrl_if(ctrl_if_);
audio_codec_delete_gpio_if(gpio_if_);
audio_codec_delete_data_if(data_if_);
}
void Es8311AudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din) {
assert(input_sample_rate_ == output_sample_rate_);
i2s_chan_config_t chan_cfg = {
.id = I2S_NUM_0,
.role = I2S_ROLE_MASTER,
.dma_desc_num = 8, // 增加DMA描述符数量提高稳定性
.dma_frame_num = 320, // 优化帧数,减少音频断续
.auto_clear_after_cb = true,
.auto_clear_before_cb = false,
.intr_priority = 0,
};
ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
i2s_std_config_t std_cfg = {
.clk_cfg = {
.sample_rate_hz = (uint32_t)output_sample_rate_,
.clk_src = I2S_CLK_SRC_DEFAULT,
.mclk_multiple = I2S_MCLK_MULTIPLE_256,
#ifdef I2S_HW_VERSION_2
.ext_clk_freq_hz = 0,
#endif
},
.slot_cfg = {
.data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
.slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
.slot_mode = I2S_SLOT_MODE_STEREO,
.slot_mask = I2S_STD_SLOT_BOTH,
// 修改I2S配置为单声道
// .slot_mode = I2S_SLOT_MODE_MONO,// 同时保持编解码器通道数为1 output_channels_ = 1;
// .slot_mask = I2S_STD_SLOT_LEFT, // 同时保持编解码器通道数为1 output_channels_ = 1;
.ws_width = I2S_DATA_BIT_WIDTH_16BIT,
.ws_pol = false,
.bit_shift = true,
#ifdef I2S_HW_VERSION_2
.left_align = true,
.big_endian = false,
.bit_order_lsb = false
#endif
},
.gpio_cfg = {
.mclk = mclk,
.bclk = bclk,
.ws = ws,
.dout = dout,
.din = din,
.invert_flags = {
.mclk_inv = false,
.bclk_inv = false,
.ws_inv = false
}
}
};
ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
ESP_LOGI(TAG, "Duplex channels created");// 双工通道创建完成
ESP_LOGI(TAG, "I2S slots: mode=stereo mask=both bit_width=16");// I2S插槽模式=立体声 掩码=都 位宽度=16
}
void Es8311AudioCodec::SetOutputVolume(int volume) {
ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
AudioCodec::SetOutputVolume(volume);
}
void Es8311AudioCodec::SetOutputVolumeRuntime(int volume) {
ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
AudioCodec::SetOutputVolumeRuntime(volume);
}
void Es8311AudioCodec::EnableInput(bool enable) {
if (enable == input_enabled_) {
return;
}
if (enable) {
esp_codec_dev_sample_info_t fs = {
.bits_per_sample = 16,
.channel = 1,
.channel_mask = 0,
.sample_rate = (uint32_t)input_sample_rate_,
.mclk_multiple = 0,
};
ESP_ERROR_CHECK(esp_codec_dev_open(input_dev_, &fs));
ESP_ERROR_CHECK(esp_codec_dev_set_in_gain(input_dev_, 30.0)); // 🎯 降低输入增益,减少杂音
} else {
ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
}
AudioCodec::EnableInput(enable);
}
void Es8311AudioCodec::EnableOutput(bool enable) {
if (enable == output_enabled_) {
return;
}
if (enable) {
// Play 16bit with configured channel count
esp_codec_dev_sample_info_t fs = {
.bits_per_sample = 16,
.channel = static_cast<uint8_t>(output_channels_),
.channel_mask = 0,
.sample_rate = (uint32_t)output_sample_rate_,
.mclk_multiple = 0,
};
ESP_ERROR_CHECK(esp_codec_dev_open(output_dev_, &fs));
ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, output_volume_));
// 🎯 添加音频质量优化:设置合适的输出增益
if (output_volume_ > 0) {
// 当音量不为0时确保PA引脚正确启用
if (pa_pin_ != GPIO_NUM_NC) {
gpio_set_level(pa_pin_, 1);
vTaskDelay(pdMS_TO_TICKS(10)); // 短暂延迟确保PA稳定
}
}
} else {
ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
if (pa_pin_ != GPIO_NUM_NC) {
gpio_set_level(pa_pin_, 0);
}
}
AudioCodec::EnableOutput(enable);
}
int Es8311AudioCodec::Read(int16_t* dest, int samples) {
if (input_enabled_) {
ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(input_dev_, (void*)dest, samples * sizeof(int16_t)));
}
return samples;
}
int Es8311AudioCodec::Write(const int16_t* data, int samples) {
if (output_enabled_) {
ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(output_dev_, (void*)data, samples * sizeof(int16_t)));
}
return samples;
}