fˈɔːɹɾiz vˈɔɪsləs kˈɑːnsənənts ðæt ɑːɹ ɹˌɛpɹᵻzˈɛntᵻd baɪ dˈʌbəl lˈɛɾɚ fɔːɹ ɛɡzˈæmpəl: ˌɛnˈɛn sˈɪmbəlˌaɪzᵻz ðə fˈɔːɹɾiz ʌv slˈæʃ ˈɛn slˈæʃ.  fˈɔːɹɾiz kˈɑːnsənənts ɑːɹ ˈɔːlsoʊ lˈɔŋɡɚ ðɐn lˈɛniz kˈɑːnsənənts.
Fortis voiceless consonants that are represented by double letter for example: nn symbolizes the fortis of /n/.  Fortis consonants are also longer than lenis consonants.