Not legally. It's kind of like how just because you have a pair of scissors it doesn't mean you are entitled to cut people's hair (without a stylist license).

Not legally. It's kind of like how just because you have a pair of scissors it doesn't mean you are entitled to cut people's hair (without a stylist license). Or how just because you own a scalpel you aren't allowed to practice medicine (without a medical license). The government has determined that these behaviors need to be regulated. Perhaps you agree about regulating the surgery but don't agree about regulating haircuts... that's a matter for the political process. In a similar fashion, Congress has passed laws on copyright that specifically say that if you own a copy of a work you can do anything you want with that copy, but you cannot make a new copy in a different form. This made sense when "a copy" meant a physical book, but that law isn't necessarily worded in a way that makes sense for electronic documents. I am old enough to remember when people tried suing over web servers, because when the browser received the file it made a local "copy" of the document in memory (without a license). The courts eventually settled on an interpretation that roughly said "ephemeral copies made during the process of delivering the work don't count as 'making a copy'". But they also settled on an interpretation that said "changing the medium -- like going between text and audio -- does count as making a copy". So text-to-speech (or speech-to-text) converters are illegal; or, more precisely, using them on any copyrighted work (which is just about every work) is illegal without the permission of the copyright owner. Maybe not the best law for today's modern world, but it's the law we have and entrenched power groups would resist any attempt to change it.