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Creates an op that encodes an audio file using sampled audio from a tensor. (deprecated)

audio A rank-2 Tensor that has time along dimension 0 and channels along dimension 1. Dimension 0 is samples_per_second * length_in_seconds long.
file_format The type of file to encode, as a string or rank-0 string tensor. "wav" is the only supported format.
samples_per_second The number of samples in the audio tensor per second of audio, as an int or rank-0 int32 tensor.

A scalar tensor that contains the encoded audio in the specified file format.