ðɛɹ ɪz nˈɛvɚ mˈoːɹ ðɐn wˈʌn spˈiːkɚ tˈɔːkɪŋ ɪnðə ɹˈuːm, nˈoʊwˈʌn hɐz tə wˈʌɹi ɐbˌaʊt tˈuː kɑːnvɚsˈeɪʃənz mˈɪksɪŋ.
There is never more than one speaker talking in the room, no one has to worry about two conversations mixing.