Modifies a noun

• fricative: In the first experiment, two vowels were compared with one voiced and one unvoiced fricative.

• consonant: My hearing does not have problems with volume as much as frequency, in particular unvoiced consonants.

• sound: How could these be used with the unvoiced sounds to build a composition that creates a feeling of suspense?

• plosive: Similarly ' t ' is an unvoiced dental plosive; ' d ' is a voiced dental plosive.