In short: Use text-to-speech to read your writing back to you if you can't proofread it out loud.
They say that the best proofreading is not read silently, but aloud. You are more perceptive to awkward wording and grammar errors when you speak than when you read. I always like to read my essays and blog posts aloud before I submit them.
However, sometimes I'm not in my room. When I'm studying in the library, for example, I don't want to be belting my essay out to everyone.
In cases like these, you can use text-to-speech software to hear your essay through your headphones. This is an effective alternative to reading aloud!