Voice requests could be fed into a personal digital assistant, for example, which could compress the speech for transmission via radio or other medium at 4 kilobits/sec across the Internet.

• 例如，声音请求可以送进“个人数字助理”，该装置对话音进行压缩，以便在Internet网上以4Kb/s的速度通过无线电或其它介质传输。