.. _gettingStartedProcessorsThreeDoc:

.. index:: single: Example; Processors

=======================================================
Built-In Processors, Constants, and Switches (Part III)
=======================================================

Let's use ``Level ()`` to build a linear panner::

	ControlIn[1] 
	>> Map (
		mode:		'Linear'
		minimum:	0.0
		maximum:	1.0
		bypass:		off
	)
	>> PanPosition;
	
	
	Microphone
	>> Level (
		gainType:	'Linear'
		gain:		PanPosition
		offset:		0.0
		bypass: 	off
	) 
	>> MainOutput[1];
	
	Microphone
	>> Level (
		gainType:	'Linear'
		gain:		1.0 - PanPosition
		offset:		0.0
		bypass: 	off
	) 
	>> MainOutput[2];
	
::

	Microphone
	>> Level (
		gainType:	[ 'Linear', 'Linear' ]
		gain:		[ PanPosition, 1.0 - PanPosition ]
		offset:		[ 0.0, 0.0 ]
		bypass: 	[ off, off ]
	) 
	>> MainOutput[1:2];

	
::

	Microphone
	>> Level (
		gainType:	'Linear'
		gain:		[ PanPosition, 1.0 - PanPosition ]
		offset:		0.0
		bypass: 	off
	) 
	>> MainOutput[1:2];
	
::

	signal PanPosition {
		default:	0.0
		rate:		ControlRate
		reset:		MasterReset
		meta:		'Pan position'
	}

	ControlIn[1] 
	>> Map (
		mode:		'Linear'
		minimum:	-1.0
		maximum:	1.0
		bypass:		off
	)
	>> PanPosition;
	
	Microphone
	>> Pan (
		position:	PanPosition
		bypass:		off
	)
	>> MainOutput[1:2];