Fix Distorted Microphone Signal

esphome/components/i2s_audio/i2s_audio.cpp

@@ -66,13 +66,18 @@ bool I2SAudioComponent::install_i2s_driver_(i2s_driver_config_t i2s_cfg, uint8_t
   this->lock();
   esph_log_d(TAG, "Install driver requested by %s", access == I2SAccess::RX ? "Reader" : "Writer");
   if( this->access_state_ == I2SAccess::FREE || this->access_state_ == access ){
+    if( this->driver_loaded_ ){
+      ESP_LOGW(TAG,"trying to load i2s driver twice");
+      return true;
+    }
     if(this->access_mode_ == I2SAccessMode::DUPLEX){
       i2s_cfg.mode = (i2s_mode_t) (i2s_cfg.mode | I2S_MODE_TX | I2S_MODE_RX);
     }
     success = ESP_OK == i2s_driver_install(this->get_port(), &i2s_cfg, 0, nullptr);
     esph_log_d(TAG, "Installing driver : %s", success ? "yes" : "no" );
     i2s_pin_config_t pin_config = this->get_pin_config();
     if( success ){
+      this->driver_loaded_ = true;
       if( this->audio_in_ != nullptr )
       {
         pin_config.data_in_num = this->audio_in_->get_din_pin();
@@ -107,6 +112,7 @@ bool I2SAudioComponent::uninstall_i2s_driver_(uint8_t access){
     if (err == ESP_OK) {
       success = true;
       this->access_state_ = I2SAccess::FREE;
+      this->driver_loaded_ = false;
     } else {
       esph_log_e(TAG, "Couldn't unload driver");
     }

esphome/components/i2s_audio/i2s_audio.h

@@ -73,6 +73,7 @@ class I2SAudioComponent : public Component {
   int lrclk_pin_;
   i2s_port_t port_{};
   i2s_driver_config_t installed_cfg_{};
+  bool driver_loaded_{false};
 };
 
 class ExternalADC;

esphome/components/satellite1/media_player/nabu_media_player.cpp

@@ -142,13 +142,11 @@ esp_err_t NabuMediaPlayer::start_i2s_driver_() {
   if (!this->claim_i2s_access()) {
     return ESP_ERR_INVALID_STATE;  // Waiting for another i2s component to return lock
   }
-
 
   i2s_driver_config_t config = this->get_i2s_cfg();
   if (!this->install_i2s_driver(config)) {
     return ESP_ERR_INVALID_STATE;
   }
-
   return ESP_OK;
 }
 
@@ -239,23 +237,23 @@ void NabuMediaPlayer::speaker_task(void *params) {
               }
 
             } else {
-              i2s_zero_dma_buffer(this_speaker->parent_->get_port());
+              //i2s_zero_dma_buffer(this_speaker->parent_->get_port());
 
               event.type = EventType::IDLE;
               xQueueSend(this_speaker->speaker_event_queue_, &event, 0);
             }
           }
 
-          i2s_zero_dma_buffer(this_speaker->parent_->get_port());
+          //i2s_zero_dma_buffer(this_speaker->parent_->get_port());
 
           event.type = EventType::STOPPING;
           xQueueSend(this_speaker->speaker_event_queue_, &event, portMAX_DELAY);
 
           allocator.deallocate(buffer, SAMPLES_IN_ALL_DMA_BUFFERS);
-          i2s_stop(this_speaker->parent_->get_port());
-          i2s_driver_uninstall(this_speaker->parent_->get_port());
-
-          this_speaker->parent_->unlock();
+          //i2s_stop(this_speaker->parent_->get_port());
+          //i2s_driver_uninstall(this_speaker->parent_->get_port());
+          this_speaker->uninstall_i2s_driver();
+          //this_speaker->parent_->unlock();
 
           event.type = EventType::STOPPED;
           xQueueSend(this_speaker->speaker_event_queue_, &event, portMAX_DELAY);