### `tf.audio_summary(tag, tensor, sample_rate, max_outputs=3, collections=None, name=None)` {#audio_summary}
Outputs a `Summary` protocol buffer with audio.
The summary has up to `max_outputs` summary values containing audio. The
audio is built from `tensor` which must be 3-D with shape `[batch_size,
frames, channels]` or 2-D with shape `[batch_size, frames]`. The values are
assumed to be in the range of `[-1.0, 1.0]` with a sample rate of
`sample_rate`.
The `tag` argument is a scalar `Tensor` of type `string`. It is used to
build the `tag` of the summary values:
* If `max_outputs` is 1, the summary value tag is '*tag*/audio'.
* If `max_outputs` is greater than 1, the summary value tags are
generated sequentially as '*tag*/audio/0', '*tag*/audio/1', etc.
##### Args:
* `tag`: A scalar `Tensor` of type `string`. Used to build the `tag`
of the summary values.
* `tensor`: A 3-D `float32` `Tensor` of shape `[batch_size, frames, channels]`
or a 2-D `float32` `Tensor` of shape `[batch_size, frames]`.
* `sample_rate`: A Scalar `float32` `Tensor` indicating the sample rate of the
signal in hertz.
* `max_outputs`: Max number of batch elements to generate audio for.
* `collections`: Optional list of ops.GraphKeys. The collections to add the
summary to. Defaults to [ops.GraphKeys.SUMMARIES]
* `name`: A name for the operation (optional).
##### Returns:
A scalar `Tensor` of type `string`. The serialized `Summary` protocol
buffer.