DSP处理器完成语音处理的部分，包含了语音压缩、回波消除、拨号音的产生、语音打包等等，这些基本上都属于信号处理的范畴。
DSP performs voice process part, including voice compression, echo cancellation, tone activity detection, tone detection and generation, voice packet, these are signal process scope.
与此类似的还有文件归档，查看语音邮件，更新日程表，检查日程表，留意股市信息或是网络交易信息，所有这些工作可以而且应该打包处理。
The same goes for filing, checking voice mail, updating our calendars, checking our calendars, checking stats on stocks or web traffic, all of these tasks can and should be batched.
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