In phonology you can account for that level of detail with "narrow transcription" it is often helped by recording the sound or even MRI[0] (sagittal section) S

In phonology you can account for that level of detail with "narrow transcription" it is often helped by recording the sound or even MRI[0] (sagittal section) Since it does not significantly alter the meaning of the word if you briefly close or not close your lips (bilabial "preparation") before articulating the dental plosive "t" it is omitted in the "broad transcription". Another related example as a foreign speaker before articulating "psychology" I will form the unvoiced bilabial plosive "p" with my lips before executing "saɪˈkɑlədʒɪ". [0] https://m.youtube.com/watch?v=YIUvX7hebBA https://m.youtube.com/watch?v=YIUvX7hebBA