Overlap–add method: Difference between revisions

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{{hatnote|This article uses common abstract notations, such as &nbsp;<math>\scriptstyle y(t) = x(t) * h(t),</math>&nbsp; or &nbsp;<math>\scriptstyle \hat sy(t) = \mathcal{H}\{sx(t)\},</math>&nbsp; in which it is understood that the functions should be thought of in their totality, rather than at specific instants <math>t.</math> (see [[Convolution#Notation]])}}

In [[signal processing]], the '''overlap–add method (OA, OLA)''' is an efficient way to evaluate the discrete [[convolution]] of a very long signal <math>x[n]</math> with a [[finite impulse response]] (FIR) filter <math>h[n]</math>''':'''