Everybody is shocked after hearing that Master Suo plays karuta with 28 one-syllable cards.  Chihaya, Arata, Taichi, and the other karuta club members do some soul searching as they attempt to move forward.
The human ear isn't capable 
of differentiating
El oído humano no es capaz de diferenciar
El oído humano no es capaz de
 diferenciar entre esos sonidos.
O ouvido humano não consegue