为什么网站总是试图和我对话？
最近我在很多网站上（在Firefox中）看到这个提示，为什么会这样？在过去一个月里，我已经看到过六七次了，以前从未注意到过。
“您无法使用语音合成，因为缺少语音调度程序库。”
有一个“了解更多”的链接，但它只是讲述如何在我的浏览器中启用语音合成。搜索这个错误信息也返回了类似的讨论。我不想这样做（尤其是如果这只是某种新的营销潮流）。显然这是语音合成，但*它在说什么？*
最近一次是在这里的dell.com产品页面上发布的：
https://www.dell.com/en-us/shop/dell-ultrasharp-52-thunderbolt-hub-monitor-u5226kw/apd/210-bthw/monitors-monitor-accessories
由于很多HN的用户可能访问过这个链接，我想知道有没有人能告诉我他们听到了什么？
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Why am I seeing this on so many sites recently (in FireFox)? I've seen it half a dozen times in the past month or so, had never noticed it before then.<p>"You can't use speech synthesis because the speech dispatcher library is missing"<p>There's a 'learn more' link, but it just talks about getting speech synthesis working in my browser. Searching for the error string returns similar discussions. I don't want to do that (especially if it's some new marketing fad). Obviously it's speech synthesis but *what is it saying?*<p>The most recent instance was a dell.com product page posted here on HN:<p>https://www.dell.com/en-us/shop/dell-ultrasharp-52-thunderbolt-hub-monitor-u5226kw/apd/210-bthw/monitors-monitor-accessories<p>As lots of people on HN will have visited that link I thought somebody might be able to tell me what they heard?