Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noiselevel and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
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Dolby Master Studio: This is targeted at high level users and supports 8-channel 7.1 audio with a signal-to-noise ratio of at leas 95.