Studying by ear
Listening works best as a second pass, not a first one. Read the chapter once the normal way, then play it back while you walk, do dishes or ride the bus. The second time through, you already know the shape of the argument, so your attention goes to the details you skimmed.
Follow along with your eyes when the material is hard. The sentence being spoken is highlighted, and seeing and hearing the same words together keeps you from drifting. It also keeps you moving at a steady pace through dense reading like a history chapter or a primary source, where it’s easy to reread the same paragraph three times.
Use it to proofread your own writing. A voice reads what is on the page, not what you meant to type, so missing words, repeated words and sentences that run too long stand out right away. Paste in your essay draft, set the speed a little under normal, and stop every time something sounds wrong.
Picking a speed
Normal speed, 1.00×, is about how fast a person reads aloud, which is slower than most people read silently. For review of material you already know, 1.25× to 1.5× is comfortable for most listeners after a minute of getting used to it. For new or technical material, such as a science chapter full of unfamiliar terms, stay at 1.00× or drop to 0.85×. If you catch yourself rewinding, it’s too fast.
Pitch and voice matter more than they seem. A voice that grates on you is hard to listen to for twenty minutes, so try a few before settling. Lowering the pitch slightly often makes a robotic voice easier to sit through.
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Questions
- Why does my PDF say it has no text?
- Some PDFs are just pictures of pages: scans, phone photos, or slides exported as images. There are no words in the file for the reader to find. If you can't highlight a sentence in the PDF with your cursor, that's the reason. Copy the text from wherever it came from and paste it in instead.
- Where do the voices come from?
- From your own device. Every phone and computer ships with a set of voices for reading text, and your browser shares them with this page. That's why the list on a Mac differs from the one on a Chromebook or an Android phone. To get more, add voices in your device's accessibility or speech settings and reload this page.
- Why didn't the pitch change?
- A few voices ignore the pitch setting, mostly the ones that play from the internet rather than from your device. Pick a different voice and the slider will work.
- Is my file uploaded anywhere?
- No. The PDF is opened and read by your browser on your own device. It isn't sent to Student Acer or anyone else, and it's gone when you close the tab.
- Does it use AI?
- No. It uses the speech engine already built into your browser and an open-source PDF reader. That's why it's free, has no limit, and works without an account.