数字调音台
digital audio mixing consoles
digital mixer
digital tuning console
digital audio control desk
数字网络调音台
digital network mixing console
专业调音台
professional audio console
离散多音调调变
discrete multi-tone modulation
双音调调变频率
dual tone modulation frequency
自动音调调整
automatic tone correction
ATC
标准调音频率
Standard tuning frequency