One issue with this is that dolphins don't have a consistent "language". There are at the very least different dialects in different parts of the ocean. So one

One issue with this is that dolphins don't have a consistent "language". There are at the very least different dialects in different parts of the ocean. So one issue is ensuring your model is using sounds from a group of dolphins speaking the same "language" - otherwise you're at risk of trying to "translate human" by feeding a mix of English and Chinese.