Polybench® Reference
Results in one channel of which the samples are the sum of the sample values of all channels at the input.

Sum of all channels


This operator always results in one channel. The sample value at the output is the sum of all sample values at the input.

Operator ports

Input S: Floating point values

Output S_sum: Floating point values


Find more information about changing properties here: link

type: Word or phrase
The name of the object in the project. This name must not contain '.' or '$' characters.

Every object has the Caption property. This property is very important, because it is the name by which Polybench recognizes this object.
It is allowed to give multiple objects the same name, as long as the objects are of the same type. In that case, a reference to this caption includes all the objects with the same caption.
In Polybench, every object can be addressed by an Address specifier, which starts with the dollar sign, for example: $My Page.My Object. 'My Page' would be the Caption of a page, and 'My Object' the Caption of an object on that page.

type: See description
Optional documentation of this object.

It is good practice to write in short notes why you have used this object, and why its properties are set the way they are set. If this object is an operator, the Documentation text is displayed below the operator symbol.


The output channel name is always 'Sigma'. The sample frequency at the output is equal to that at the input.