One-Multiply Linear Interpolation

Note that by factoring out $ \eta$, we can obtain a one-multiply form,

$\displaystyle \hat y(n+\eta) = y(n) + \eta\cdot\left[y(n+1) - y(n)\right].
$

Thus, the computational complexity of linear interpolation is one multiply and two additions per sample of output.


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Time Varying Reverberators