Encode audio data using the WAV file format.

    audio, sample_rate, name=None

This operation will generate a string suitable to be saved out to create a .wav audio file. It will be encoded in the 16-bit PCM format. It takes in float values in the range -1.0f to 1.0f, and any outside that value will be clamped to that range.

audio is a 2-D float Tensor of shape [length, channels]. sample_rate is a scalar Tensor holding the rate to use (e.g. 44100).


  • audio: A Tensor of type float32. 2-D with shape [length, channels].
  • sample_rate: A Tensor of type int32. Scalar containing the sample frequency.
  • name: A name for the operation (optional).


A Tensor of type string.