Linear Interpolation

Rather than rounding values of to nearest integers, it is more accurate to interpolate between two neighboring values of the wavetable.

If , we could take values from table at index 6 and 7, and ``construct a line between them'', i.e., take the value halfway between its neighbours.

At , we would give greater weight to the $7^{\mbox{th}}$ element.

**Figure 2:** Linear interpolation.
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``Music 270a: Waveshaping Synthesis'' by Tamara Smyth, Department of Music, University of California, San Diego (UCSD).