text_original: He must think fast  and act!  but the numbness of brain and muscle was creeping upon him. He tried to call out, but his throat was tight, and would not respond. The echoes died into silence; the vibrations, as before, passed beyond audible range. He was sinking ... sinking....
text_transcription: HE MUST THINK FAST AND ACT BUT THE NUMBNESS OF BRAIN AND MUSCLE WAS CREEPING UPON HIM HE TRIED TO CALL OUT BUT HIS THROAT WAS TIGHT AND WOULD NOT RESPOND THE ECHOES DIED INTO SILENCE THE VIBRATIONS AS BEFORE PASSED BEYOND AUDIBLE RANGE HE WAS SINKING SINKING
phonemes: hiː mˈʌst θˈɪŋk fˈæst ænd ˈækt!  bˌʌt ðə nˈʌmnəs ʌv bɹˈeɪn ænd mˈʌsəl wʌz kɹˈiːpɪŋ əpˌɑːn hˌɪm. hiː tɹˈaɪd tə kˈɔːl ˈaʊt, bˌʌt hɪz θɹˈoʊt wʌz tˈaɪt, ænd wʊd nˌɑːt ɹᵻspˈɑːnd. ðɪ ˈɛkoʊz dˈaɪd ˌɪntʊ sˈaɪləns; ðə vˌaɪbɹˈeɪʃənz, æz bᵻfˈɔːɹ, pˈæst bᵻjˌɔnd ˈɔːdᵻbəl ɹˈeɪndʒ. hiː wʌz sˈɪŋkɪŋ ... sˈɪŋkɪŋ....