1. Differences between "extract_finetune" and "extract_features" and 2. extract discrete unit feature

[hyunbin70]

Hi, Thank you for your dedicated work.

1. Actually, I want to extract the features from the AV-HuBERT, so I decided to use the "extract_finetune".
   But, I just would like to understand the difference between the functions, "extract_finetune" and "extract_features".
   In the Colab demo, it appears that "extract_finetune" is used to obtain features regardless of whether the model and checkpoint are pre-trained or fine-tuned. Can I use the "extract_finetune" function for both pre-trained and fine-tuned models and checkpoints?

2. Additionally, I would like to extract the discrete unit feature from AV-HuBERT, not the continuous features obtained via "extract_finetune". Could you provide guidance on extracting features similar to the unit feature described in this paper?: https://arxiv.org/pdf/2204.02967

Thank you for your assistance.