The phrase "harmonic effects" is correct and usable in written English.
It can be used in contexts related to music, sound design, or physics, where the interaction of harmonics is being discussed.
Example: "The composer skillfully incorporated harmonic effects to enhance the emotional depth of the piece."
Alternatives: "harmonic influences" or "harmonic interactions."
The striking harmonic effects were vividly conveyed by the Emerson in its intelligently wrought interpretation.
Harmonic effects, too, were properly expressive, as with the unease of the bell sounds in "La Vallée des Cloches" or -- most touching of all -- the quiet, awkward sincerity of the fool's song in "Alborada del Gracioso".
A model for the diurnal cycle is suggested which would produce these harmonic effects.
A 43.2 kW PV system is designed and operational problems such as harmonic effects and anti-islanding are discussed.
These results promise a way to tune SHG and other harmonic effects quantitatively according to designing materials with proper nonlinearity and inhomogeneity.
Although nonlinearity and accelerated harmonic effects may cause disturbance in power networks, CFLs are frequently preferred due to their low energy consumption.
The plain plaster interior was equally simple, "a study in circular architecture all contributing to the harmonic effect of the one central unity," The Times said.
He had printouts made from the last sequence in the book and cut them into horizontal swaths — between about thirty and sixty strips each — which he laid out on his studio floor and reordered for harmonic effect.
He is a fully mature artist with a distinctive style, the culinary version of counterpoint, in which precisely defined flavors talk back and forth to each other rather than blending into a single smooth harmonic effect.
Influenced by both classical music and jazz, Taylor became a virtuoso pianist with a unique range of dynamics, attacks, and harmonic resources, including many tone clusters played for percussive, not harmonic, effect.
Pure dance and "speaking" mime alternate and overlap; every part of the body is involved, not the least fingers and eyes; the tilt of the shoulder line from one diagonal to another becomes a richly harmonic effect, like a change from one full chord to another; long-held poses sing out with powerfully sculptural effect amid rapid rhythms.
