audio channel

基本解释

DTMF has perfect anti-interference and some anti-Doppler shift ability and is widely used for low rate communication in audio channel.
DTMF信號具有優良的抗乾擾性能和一定的抗多普勒頻移的能力，廣泛應用於語音信道的低速數據通信。
DTMF has perfect antiinterference and antidropper frequency shift ability, it is widely used for low rate communication in audio channel.
DTMF信號具有優良的抗乾擾性能和一定的抗多普勒頻移的能力，廣泛應用於語音信道的低速數據通信。
Handle of a paused audio channel to be resumed.
需要進行恢複的暫停中的音軌的句柄。
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