Fix device mismatch in TTS model reuse after CPU offloading
Root cause: When models are detached to CPU and then reloaded to GPU, conditioning tokens (cond_prompt_speech_tokens) remain on CPU. The prepare_conditioning() method in T3 model tries to embed these CPU tokens using GPU embedding layers, causing device mismatch.
Solution: Explicitly move conditioning tokens to model device before calling embedding layers in both ChatterBox and ChatterBox Official 23-Lang T3 models.
diodiogod
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