combination tone


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combination tone

[‚käm·bə′nā·shən ′tōn]
(acoustics)
A subjective tone produced by simultaneously sounding two pure tones whose frequencies differ by a large amount.
References in periodicals archive ?
This type of variability is known in physics as a combination tone," said Fei-Fei Jin, professor of Meteorology and co-author of the study.
The unusual wind pattern straddling the equator during an El Nino is such a combination tone between El Nino events and the seasonal march of the sun across the equator," said co-author Axel Timmermann, climate scientist at the International Pacific Research Center and professor at the Department of Oceanography, University of Hawai'i.
It turns out that many climate models have difficulties creating the correct combination tone, which is likely to impact their ability to simulate and predict El Nino events and their global impacts," he added.
Moreover, they say the latest climate model projections suggest that El Nino events will be accompanied more often by this combination tone wind pattern, which will also change the characteristics of future El Nino rainfall patterns.
The strapmarks are rather chavvy tooDresses such as this brightly coloured jersey material one suit Zara well, the tight fit and bright colours enhancing her figureIncredibly smart and sophisticated, yet at the same time vibrant and fun, Zara wore this to a Christmas day church service last year - a great look for a woman of her age at such an occasionPerfectly epitomising the chav-sloane look, the tiny Kate Moss shorts are probably a step too far for a royal, but the shirt and tank top combination tone it down and make it slightly more respectableZara has a love of bold statement head pieces, as worn here back in 2003.