class:: ControlDur
summary:: Duration of one block
categories:: UGens>Info
related:: Classes/ControlRate

description::
Returns the current block duration of the server in seconds. Equivalent to  1 / link::Classes/ControlRate::.

classmethods::
method:: ir

examples::
code::
{ ControlDur.ir.poll }.play;

{ (1/ControlDur.ir).poll }.play;

{ ControlRate.ir.poll }.play;
::
