add repeat audio back #1959
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add repeat audio back #1959
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Related to #1483.
I have encountered issues when decoding with beam_size > 1.
Here, https://github.com/openai/whisper/blob/main/whisper/model.py#L102, during cross_attention, I think we must keep the first two dims of query and key tensors same. However, I didn't find anywhere we repeat the audio or key, value tensors with beam_size.