Back Stimmloser alveolarer Vibrant German Voiceless alveolar trill English Vibrante múltiple alveolar sorda Spanish Consonne roulée alvéolaire sourde French Konsonan getar rongga-gigi nirsuara ID Vibrante alveolare sorda Italian 無声歯茎ふるえ音 Japanese 무성 치경 전동음 Korean Spółgłoska drżąca dziąsłowa bezdźwięczna Polish Vibrante múltipla alveolar surda Portuguese
| Voiceless alveolar trill | |||
|---|---|---|---|
| r̥ | |||
| IPA Number | 122 402A | ||
| Audio sample | |||
| Encoding | |||
| X-SAMPA | r_0 | ||
| |||
The voiceless alveolar trill differs from the voiced alveolar trill /r/ in its phonation (whether or not the vocal chords are vibrating while pronouncing the sound). It is used in a few languages. In languages that also have the voiced alveolar trill, it can be a similar sound or an allophone (another way a certain sound can be pronounced).
In Proto-Indo-European, the sound *sr became a sound spelled ⟨ῥ⟩, with the letter for /r/ and the diacritic for /h/, in Ancient Greek. This sound was probably a voiceless alveolar trill. It became the regular word-initial (meaning "at the start of a word") allophone of /r/ in standard Attic Greek. This sound has disappeared in Modern Greek.