text_original: It had occurred to him  while engaged with his brother in that laughing duetto  and somewhat to the surprise of Caspar, it had caused a sudden cessation of his mirth, or at least the noisy ebullition of it.
text_transcription: IT HAD OCCURRED TO HIM WHILE ENGAGED WITH HIS BROTHER IN THAT LAUGHING DUETTO AND SOMEWHAT TO THE SURPRISE OF CASPAR IT HAD CAUSED A SUDDEN CESSATION OF HIS MIRTH OR AT LEAST A NOISY EBULLITION OF IT
phonemes: ɪt hæd əkˈɜːd tə hˌɪm wˌaɪl ɛŋɡˈeɪdʒd wɪð hɪz bɹˈʌðɚɹ ɪn ðæt lˈæfɪŋ dˈuːɾoʊ ænd sˈʌmwʌt tə ðə sɚpɹˈaɪz ʌv kˈæspɑːɹ, ɪt hæd kˈɔːzd ɐ sˈʌdən sɛsˈeɪʃən ʌv hɪz mˈɜːθ, ɔːɹ æt lˈiːst ðə nˈɔɪzi ɪbʊlˈɪʃən ʌv ɪt.