DUPLEX TRANSMISSION
\djˈuːplɛks tɹansmˈɪʃən], \djˈuːplɛks tɹansmˈɪʃən], \d_j_ˈuː_p_l_ɛ_k_s t_ɹ_a_n_s_m_ˈɪ_ʃ_ə_n]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C