由于话音设备的已有装机基础非常大，所以很多供应商首先瞄准此方式。
Because there is such a large installed base of voice equipment, many vendors have focused on this approach first.
口述记录设备上的一种装置，当它接触或接近记录媒体时，就使话音或其它声音脉冲被记录下来。
On dictation equipment, a device that, when brought into contact or near contact with the recording medium, causes voice or other sound impulses to is recorded.
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