... (transcription) 模拟录音、数字处理数码唱盘 adc audio digital conversion 模拟数字转换 a/d audio to digital 模拟／数字 ...
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没有必要把模拟转换为数字数据。
大多数电视台都会在转换过程中使用备用天线，从发射塔卸下老式的模拟天线，而代之以新的数字天线塔杆。
Most television stations will use backup antennas during the transition while their old analogue ones are taken down from their towers and replaced with new digital masts.
2012年，英国将完成模拟信号向数字信号的转换，这就意味着几乎每家每户都可自由选择多种频道。
The switchover to digital signal by 2012 means that multichannel choice will soon be available to almost all households.
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