remove mic buffer clearing functionality

Assets/_PROJECT/Scripts/ModeGeneration/FMODWhisperBridge.cs

@@ -47,7 +47,6 @@ public class FMODWhisperBridge : MonoBehaviour
 
     // Whisper
     private WhisperStream _stream;
-    private bool _streamStarted;
 
     // temp conversion buffer
     private float[] _floatTmp = new float[0];
@@ -156,8 +155,7 @@ public class FMODWhisperBridge : MonoBehaviour
 
         if (_stream != null)
         {
-            try { _stream.StopStream(); } catch { }
-            _streamStarted = false;
+            _stream.StopStream();
         }
 
         try
@@ -168,7 +166,6 @@ public class FMODWhisperBridge : MonoBehaviour
         {
             Debug.LogError($"[FMOD→Whisper] CreateStream exception: {e}");
             _stream = null;
-            _streamStarted = false;
             return;
         }
 
@@ -189,11 +186,6 @@ public class FMODWhisperBridge : MonoBehaviour
         whisper.useVad = useVadInStream;
 
         _stream.StartStream();
-        _streamStarted = true;
-
-
-        // Clear buffer bytes
-        ClearRecordRingBuffer();
 
         // Reset our read pointer to the current write head
         _core.getRecordPosition(recordDriverId, out _lastRecordPos);
@@ -210,7 +202,7 @@ public class FMODWhisperBridge : MonoBehaviour
     /// </summary>
     public void DeactivateRecording()
     {
-        if (!isRecordingActivated && !_streamStarted)
+        if (!isRecordingActivated)
             return;
 
         isRecordingActivated = false;
@@ -296,7 +288,7 @@ public class FMODWhisperBridge : MonoBehaviour
             }
 
             // 2) Feed audio to Whisper
-            if (_streamStarted && _stream != null)
+            if (_stream != null)
             {
                 if (isRecordingActivated && !_skipOneFeedFrame)
                 {
@@ -407,56 +399,6 @@ public class FMODWhisperBridge : MonoBehaviour
         }
     }
 
-
-    private void ClearRecordRingBuffer()
-    {
-        if (!_recSound.hasHandle() || _soundPcmLength == 0) return;
-
-        uint totalBytes = _soundPcmLength * (uint)_nativeChannels * 2; // PCM16
-        IntPtr p1, p2;
-        uint len1, len2;
-
-        // Lock the whole buffer (start=0, length=totalBytes)
-        var r = _recSound.@lock(0, totalBytes, out p1, out p2, out len1, out len2);
-        if (r != FMOD.RESULT.OK)
-        {
-            Debug.LogWarning($"[FMOD→Whisper] Could not lock ring buffer to clear: {r}");
-            return;
-        }
-
-        try
-        {
-            if (len1 > 0)
-            {
-                // zero p1
-                // We’ll reuse a static zero array to avoid allocating huge buffers repeatedly
-                ZeroMem(p1, (int)len1);
-            }
-            if (len2 > 0)
-            {
-                ZeroMem(p2, (int)len2);
-            }
-        }
-        finally
-        {
-            _recSound.unlock(p1, p2, len1, len2);
-        }
-    }
-
-    // cheap zeroing helper (avoids allocating len-sized arrays each time)
-    private static readonly byte[] _zeroChunk = new byte[16 * 1024]; // 16 KB
-    private static void ZeroMem(IntPtr dst, int byteLen)
-    {
-        int offset = 0;
-        while (byteLen > 0)
-        {
-            int n = Math.Min(_zeroChunk.Length, byteLen);
-            Marshal.Copy(_zeroChunk, 0, dst + offset, n);
-            offset += n;
-            byteLen -= n;
-        }
-    }
-
     /// <summary>
     /// Computes RMS (root mean square) from a PCM16 block using only safe code.
     /// Uses the shared _shortOverlay buffer (no allocations).