理论上来说由Alexa启动的设备只能对你说完“唤醒词”之后马上说的话进行录音,然后上传到亚马逊,远程服务器再利用语音识别来推断你的意思,然后将指令传回本地音箱。
But one issue in this flow of events, as Amazon's recently revealed patent application argues, is it means that anything you say before the wakeword isn't actually heard.
但亚马逊最近公布的专利申请中说,这一系列操作中有一个问题,那就是你在说出唤醒词之前所说的话其实并未被录音。
"A user may not always structure a spoken command in the form of a wakeword followed by a command (eg. 'Alexa, play some music')," the Amazon authors explain in their patent application, which was filed back in January, but only became public last week.
专利申请1月份就已提交,上周才公之于众。亚马逊负责人在专利申请中解释说:“用户给出语音指令时不可能总是先说出唤醒词然后再发出指令(如‘Alexa,播放音乐’)”。
"Instead, a user may include the command before the wakeword (eg. 'Play some music, Alexa') or even insert the wakeword in the middle of a command (eg. 'Play some music, Alexa, the Beatles please'). While such phrasings may be natural for a user, current speech processing systems are not configured to handle commands that are not preceded by a wakeword."
“用户反而可能会先说指令,再说唤醒词(如‘播放音乐,Alexa’),或者甚至在指令之间说唤醒词(如‘播放音乐,Alexa,请播放甲壳虫乐队的歌’)。虽然对用户来说这样很自然,但目前的语音处理系统并没有这样的功能,能识别未说唤醒词就给出的指令。”
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