Disable conversational awareness in transparency mode to avoid volume bugs

Co-authored-by: YimingZhanshen <76594627+YimingZhanshen@users.noreply.github.com>

Author: Copilot

Source/Core/AirPods.cpp

@@ -918,6 +918,9 @@ void Manager::OnNoiseControlModeNotification(AAP::NoiseControlMode mode)
 {
     LOG(Info, "Noise control mode changed to: {}", Helper::ToString(mode).toStdString());
 
+    // Track the current noise control mode
+    _currentNoiseControlMode = mode;
+    
     // Update the cached state in the state manager if we have a current state
     auto state = _stateMgr.GetCurrentState();
     if (state.has_value()) {
@@ -986,6 +989,14 @@ void Manager::OnSpeakingLevelChanged(AAP::SpeakingLevel level)
         return;
     }
 
+    // Disable conversational awareness in transparency mode to avoid volume restoration bugs
+    // The AAP firmware in transparency mode doesn't reliably send restoration events
+    if (_currentNoiseControlMode.has_value() && 
+        _currentNoiseControlMode.value() == AAP::NoiseControlMode::Transparency) {
+        LOG(Info, "Conversational awareness disabled in transparency mode to avoid volume bugs");
+        return;
+    }
+    
     switch (level) {
         case AAP::SpeakingLevel::StartedSpeaking_GreatlyReduce:
         case AAP::SpeakingLevel::StartedSpeaking_GreatlyReduce2:

Source/Core/AirPods.h

@@ -208,6 +208,7 @@ class Manager
     bool _personalizedVolumeEnabled{false};
     bool _loudSoundReductionEnabled{false};
     uint8_t _adaptiveTransparencyLevel{25};
+    std::optional<AAP::NoiseControlMode> _currentNoiseControlMode;
 
     // AAP Manager for L2CAP protocol communication
     AAP::Manager _aapMgr;