To achieve a more natural appearance, the developers added spherical harmonics to provide indirect lighting to in-game objects like Lara Croft.

In some cases the NVH engineer is asked to change the sound quality, i.e. adding or subtracting particular harmonics, rather than making the car quieter.

Fuzzboxes also contain frequency multiplier circuitry to achieve an even harsher timbre by adding complex harmonics.

Each tonewheel of the instrument corresponded to a single note, and, to broaden its possibilities, Cahill added several extra tonewheels to add harmonics to each note.

The "T" stands for transformer, which are said to add harmonics to the sound.

Distortion is equivalent to adding harmonics to a signal.

One modification that a guitar makes to that tone is to add harmonics to it.

They also have a lot of, uh, effects processors that they can run it through that will add harmonics that will kind of smooth out the voice.

A funny sort of musical trio began, as Greenhands and the little songbird exchanged perfectly pitched notes, while the brown thrush added off-key harmonics.

This adds additional high-amplitude odd harmonics, creating a "dirty" or "gritty" tone.