用于测试网站可访问性的屏幕阅读器
我的网站旨在满足可访问性准则。
我希望这意味着屏幕阅读器应该能够很好地与它们配合...但我有两个问题：
- 这是一个合理的假设吗？
- 有免费/便宜的屏幕吗 我可以用来测试或的读者客户端 在线模拟器？
My website is designed to meet the accessibility guidelines.
I'm HOPING that this means screen readers should work well with them... But I have two questions:
- Is this a fair assumption to make?
- Are there any free/cheap screen
readers clients I can use to test or
online emulators?
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仅仅因为某些东西符合准则并不意味着它保证可以访问，所有屏幕阅读器都有不同的怪癖。 我是一个完全失明的人，所以屏幕阅读器的评论如下。
请注意，这是一篇相当长的文章，因此我在顶部对其进行了总结。 总之，如果您想确保您的网站大部分可访问，请使用 NVDA；如果您想确保在政府工作的盲人能够使用您的网站，请使用 Jaws 进行测试；如果您想更加安全，请使用 Window -眼睛和虎鲸也需要测试。
NVDA 是一个相当新的开源屏幕阅读器。 它不如一些商业屏幕阅读器那么好，但它可以完成工作。 我想说，如果一个网站与 NVDA 兼容，那么它很可能与大多数其他屏幕阅读器兼容。 NVDA 的一个问题是，它的可访问性只有在 Firefox 中才非常好，因此您必须使用它来进行测试。
Jaws 是目前使用最广泛的屏幕阅读器。 您可以下载它的演示版，该演示版一次运行 40 分钟，然后如果您想再次运行它，则需要重新启动。 如果您想确保 508 合规性，这可能是您的最佳选择，因为 Jaws 是美国政府使用的屏幕阅读器。
Window-Eyes 是第二常用的屏幕阅读器。 我对此没有任何经验，但有人告诉我，就互联网可访问性而言，它相当不错。 Orca 是内置于 gnome 中的屏幕阅读器，可与 Firefox 和 Linux 配合使用。 它内置于 Ubuntu 中。 大约一年半前我尝试过，这绝对是可怕的，但我听说它已经变得更好了。
Just because something meets the guideline doesn't mean it's guaranteed to be accessible, all screen readers have there different quirks. I'm a totally blind individual so comments on screen readers are below.
Note this is a rather long post so I’ve summarized it at the top. In summary if you want to make sure your site is mostly accessible use NVDA, if you want to make sure that blind individuals working in the government will be able to use your site use Jaws to test, if you want to be extra safe use Window-Eyes and Orca to test as well.
NVDA is an open source screen reader that is rather new. It isn't quite as good as some of the commercial screen readers out there but it gets the job done. I'd say if a site works with NVDA it's likely to work with most other screen readers. One issue with NVDA is the fact that its accessibility is only really good in Firefox so you'll have to use that to test.
Jaws is the most widely used screen reader out there. You can download a demo of it that will run for 40 minutes at a time then require you to reboot if you want to run it again. If you’re trying to insure 508 compliance this is probably the way to go since Jaws is the screen reader used by the US government.
Window-Eyes is the second most used screen reader. I don’t have any experience with it but I’ve been told it’s quite good as far as internet accessibility goes. Orca is a screen reader built into gnome that works with Firefox and Linux. It’s built into Ubuntu. I tried it about a year and a half ago and it was absolutely horrible but I’ve been told it’s gotten better.
NVDA 是一个免费选项：
NVDA is a free option:
不，即使您认为自己非常了解可访问性的来龙去脉，也只有测试才能真正告诉您这一点。
已经提到的 NVDA 看起来是一个可行的选择，或者您可以下载 JAWS 我相信它是 Windows 上使用最广泛的屏幕阅读器。 如果您真的很重视可访问性并且需要持续测试，您可能需要考虑只购买一份副本。
最后一点，听起来您已经知道这一点，但没有多少自动化可访问性测试可以真正告诉您您的网站是否可访问，只有现实世界的测试才能做到这一点！ 这就是你正在做的事情，做得很好。
No, even if you think you know the ins and outs of accessibility well, only testing can really tell you this.
The already mentioned NVDA looks like a viable option, or you can download a trial of JAWS which I believe is the most widely used screen reader on Windows. If you're really serious about accessibility and you have a requirement for ongoing testing, you might want to think about just buying a copy.
On a final note, it sounds like you already know this but no amount of automated accessibility testing can really tell you if your site is accessible, only real-world testing can do that! Which is what you're doing, so well done.