A while ago, I wrote a post describing how to listen to PDF journal articles by converting them to Kindle format and using Kindle’s text-to-speech capability. This system helped me be productive on my long commute, but I recently discovered an even better solution. As it turns out, the Mac’s OS X comes with a pretty robust text-to-speech feature, and it’s remarkably easy to create audio files for playback on your computer or mobile devices.
Here’s how to do it:
- First, download (or scan) a PDF of a journal article. Make sure that the text is selectable. If it’s not, you may need to run optical character recognition (OCR) on it. I use Adobe Acrobat, which I find pretty reliable.
- Open the PDF in Preview, and select all the text (Command-A).
- Once the text is all selected, right-click (or Control-Click) on the text, find “Services,” and look for the item “Add to iTunes as Spoken Track.”
- When you click on that, you’ll see the following dialogue that allows you to choose one of the built-in voices and to name the file. I suggest sticking with the “Alex” voice.
- Click “Continue,” and your Mac will begin converting the text to a spoken audio file. When it’s done, open iTunes and find the track. You can listen to it as is, but I recommend changing its designation from “music” to “audiobook.” To do that, right-click (Control-Click) on the file and choose “Get Info.” Under “Options,” find where it says “Media Kind,” and select “Audiobook.”
Now you can add the file to playlists and sync it to your favorite media device. I put files on my iPhone, and then play them over the bluetooth connection in my car. Also keep in mind that you can adjust the speed of the text-to-speech voice in System Preferences, under “Dictation & Speech.” I found that just a little faster than “normal” works well, but your mileage may vary.