diff --git a/backend/backends/chatterbox_backend.py b/backend/backends/chatterbox_backend.py
index 8d716df7..88f87d4e 100644
--- a/backend/backends/chatterbox_backend.py
+++ b/backend/backends/chatterbox_backend.py
@@ -178,30 +178,6 @@ class ChatterboxTTSBackend:
                 progress_manager.mark_complete(model_name)
                 task_manager.complete_download(model_name)
 
-            # Monkey-patch prepare_conditionals to cast librosa's float64
-            # audio to float32 before it reaches the voice encoder.  The
-            # upstream VoiceEncoder's melspectrogram only casts to float32
-            # when hp.normalized_mels is True (it defaults to False), so
-            # float64 mels hit float32 model weights → dtype mismatch.
-            _orig_prepare = self.model.prepare_conditionals
-
-            def _f32_prepare(wav_fpath, **kwargs):
-                import librosa as _librosa
-
-                _orig_librosa_load = _librosa.load
-
-                def _load_f32(*a, **kw):
-                    wav, sr = _orig_librosa_load(*a, **kw)
-                    return wav.astype(np.float32), sr
-
-                _librosa.load = _load_f32
-                try:
-                    return _orig_prepare(wav_fpath, **kwargs)
-                finally:
-                    _librosa.load = _orig_librosa_load
-
-            self.model.prepare_conditionals = _f32_prepare
-
             logger.info("Chatterbox Multilingual TTS loaded successfully")
 
         except ImportError as e:
diff --git a/backend/backends/chatterbox_turbo_backend.py b/backend/backends/chatterbox_turbo_backend.py
index 44606cf3..16bb5d70 100644
--- a/backend/backends/chatterbox_turbo_backend.py
+++ b/backend/backends/chatterbox_turbo_backend.py
@@ -178,30 +178,6 @@ class ChatterboxTurboTTSBackend:
                 progress_manager.mark_complete(model_name)
                 task_manager.complete_download(model_name)
 
-            # Monkey-patch prepare_conditionals to cast librosa's float64
-            # audio to float32 before it reaches the voice encoder.  The
-            # upstream VoiceEncoder's melspectrogram only casts to float32
-            # when hp.normalized_mels is True (it defaults to False), so
-            # float64 mels hit float32 model weights → dtype mismatch.
-            _orig_prepare = self.model.prepare_conditionals
-
-            def _f32_prepare(wav_fpath, **kwargs):
-                import librosa as _librosa
-
-                _orig_librosa_load = _librosa.load
-
-                def _load_f32(*a, **kw):
-                    wav, sr = _orig_librosa_load(*a, **kw)
-                    return wav.astype(np.float32), sr
-
-                _librosa.load = _load_f32
-                try:
-                    return _orig_prepare(wav_fpath, **kwargs)
-                finally:
-                    _librosa.load = _orig_librosa_load
-
-            self.model.prepare_conditionals = _f32_prepare
-
             logger.info("Chatterbox Turbo TTS loaded successfully")
 
         except ImportError as e: