##
14.5.1 Wave_read Objects

Wave_read objects, as returned by `open()`, have the following methods:

`close`()
  Close the stream, and make the instance unusable. This is called automatically on object collection.

`getnchannels`()
  Returns number of audio channels (`1` for mono, `2` for stereo).

`getsampwidth`()
  Returns sample width in bytes.

`getframerate`()
  Returns sampling frequency.

`getnframes`()
  Returns number of audio frames.

`getcomptype`()
  Returns compression type (`'NONE'` is the only supported type).

`getcompname`()
  Human-readable version of `getcomptype()`. Usually `'not compressed'` parallels `'NONE'`.

`getparams`()
  Returns a tuple `(nchannels, sampwidth, framerate, nframes, comptype, compname)`, equivalent to output of the `get*()` methods.

`readframes`(n)
  Reads and returns at most n frames of audio, as a string of bytes.

`rewind`()
  Rewind the file pointer to the beginning of the audio stream.

The following two methods are defined for compatibility with the `aifc` module, and don't do anything interesting.

`getmarkers`()
  Returns `None`.

`getmark`(id)
  Raise an error.

The following two methods define a term ``position'' which is compatible between them, and is otherwise implementation dependent.

`setpos`(pos)
  Set the file pointer to the specified position.

`tell`()
  Return current file pointer position.