==========
Directives
==========

A directive is a way to specify behaviors that are not directly
related to signal manipulations.

@out
----

The ``@out`` signal uses the default audio output device to play a
given signal. For instance:

.. code-block::

   # doesnt make sound
   [sine 230 1]

does nothing. To hear our sine we have to use ``@out``.

.. code-block::

   # make sound
   @out [sine 230 1]