text_encoder_dim (`int`):
Dimensionality of the text embeddings from the first text encoder (CLAP).
text_encoder_1_dim (`int`):
Dimensionality of the text embeddings from the second text encoder (T5 or VITS).
langauge_model_dim (`int`):
Dimensionality of the text embeddings from the language model (GPT2).  
- forward