对麦克风输入执行操作
我正在编写一个涉及语音识别的程序。我希望它在任务栏中运行，然后当有人对着麦克风说话时让它醒来，然后执行一项操作。当有人说话而没有循环检查输入音量变化时，我该如何唤醒？
I am writing a program that involves voice recognition. I want it to run in the taskbar then when some one speaks into the mic for it to wake up and then perform an action. How would I go about making wake up when someone speaks without a loop checking for a change in input volume?
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最后，麦克风记录来自连续虚拟流的声音数据。如果将其与键盘进行比较，按下某个键时会有一个定义的时刻 - 一个事件。声音中不存在这样的时刻或事件——必须有人决定何时音量足够高以对其采取行动。
因此，必须对数据进行分析才能对其采取行动。除非我错了并且声卡有这样的功能，否则你必须自己做。
也许您不必分析所有数据 - 每 100 毫秒查看一次可能就足够了？
In the end, a microphone records a sound data from a continuous virtual stream. If you compare this to a keyboard, there is a defined moment when a key is pressed - an event. There is no such moment or event in sound - someone has to decide when the volume is high enough to act on it.
So something will have to analyse the data in order to act on it. And unless I'm wrong and a sound card has such functionality, you'll have to do it yourself.
Perhaps you don't have to analyse all data - a peek every 100ms might suffice?