Subvocalization: Turn the Inner Voice Down, Not Off

What subvocalization is

Most of us learned to read out loud: letter by letter, then word by word, then silently with a voice in our head that still says each word. Speed Readingo’s course calls the next step reading with your eyes. You already do it every day. When you look at a table you know it is a table without saying the word “table”. Scrolling a social feed works the same way: you take in a post at a glance.

Research adds an important footnote. The inner voice never leaves completely, even in skilled readers. People asked whether “meet” is a kind of food say yes far more often than for “melt”, because it sounds like meat (a classic experiment reviewed in Rayner et al., 2016). Recordings from inside the brain show voice areas responding to words that are read silently (Perrone-Bertolotti et al., 2012).

Why it slows you down

If the voice pronounces every word at the speed you talk, you cannot read much faster than you talk. Silent reading already runs ahead of speech because the voice skips a lot: adults average about 238 words per minute reading silently and about 183 reading aloud, across hundreds of studies (Brysbaert, 2019). The slower you read, the more the voice takes over. As the course puts it, the inner voice kicks in as you slow down.

Why you should not try to kill it

Many speed-reading books promise to “eliminate subvocalization”. The evidence points the other way. When researchers blocked inner speech, for example by having people repeat an unrelated word while reading, comprehension of difficult text fell and inference questions suffered most. Easy text was unaffected (Rayner et al., 2016).

So the target is not silence. It is a quieter voice that says the important words and lets the rest go.

Turn it down: four habits

1. Read slightly faster than comfortable. The voice cannot keep up, so it stops trying to say every word. This is why the course starts its read-alongs fast on purpose, like starting the gym with a heavier weight.
2. Let the small words go. Words like the, of and and carry little meaning. Readers skip about a third of the words right after the one they are looking at and still process most of them (Rayner et al., 2016).
3. Keep your lips and throat still. If you notice your lips moving, you are reading at speaking pace.
4. Slow down on purpose when it gets hard. A contract, a formula or a tricky argument deserves the full voice. Think of speed reading as a separate skill, not a replacement for careful reading.

At work and in class

Use the faster, quieter pace for the reading where you only need the gist: email threads, status reports, background chapters. Switch back to full speed-of-speech reading for numbers, legal wording and anything you will be tested on in detail.

Try it

Play the drill at the top of this page at 350 words per minute. Each word shows up in the same spot, so your eyes do not move, and the pace is a little too fast for the voice to say every word. After five minutes, open a normal page and read it. Most people notice the voice has stepped back. Then measure the change with the reading speed test, which also checks that you understood what you read.

Next lesson: pit words, or how to make fewer stops per line.