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You may be buying a vowel

The sound of car shopping.

You've pored over auto ads, researched options, and shopped around. Yet when the time comes to buy, you may not be aware of the deciding factor: the vowel sound in the brand name.

Phonetic symbolism, as researchers call it, refers to phonemes - small units of sound - and the meaning each one conveys. Basically, sounds have meanings that are separate from the word that contains them. This symbolism may have an impact on consumers' choices, according to a study at the University of Texas at San Antonio.

Researchers used fictitious word pairs (example: gimmel and gommel) to test brand preferences. Each pair of words differed by only one vowel, with the pronunciation of that vowel depending on tongue position. The i in mill or the ee in tee were front-tongue sounds, while the a in mall or the oo in toot were back-tongue sounds.

The i or ee sound was preferred for products that were small, fast or sharp, such as convertibles and knives. The a or oo sound was desired for large, slow or dull products like SUVs and hammers.

"We have come to associate certain sounds with certain attributes," explained Tina Lowrey, a marketing professor who coauthored the study with her husband, L.J. Shrum.

Regardless of the product category, few of the 195 participants preferred negative sounds like the yoo in pee-yew or the un in blunder.

Since many companies test potential brand names, Lowrey said market researchers "should find this of particular interest."

- Colleen Dunn