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episode · perception

Why does your voice sound different on a recording?

Bone conduction adds bass to the voice in your head. Recordings do not.

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The 50-word answer

The voice in your head is louder, deeper, warmer than your recorded voice. Bone conduction transmits vibration through your skull bones directly into the cochlea, amplifying low frequencies that air conduction does not. A recording captures only the air-path version, which is what everyone else hears.

Transcript

You hate your voice on a recording. Spoiler. That is what you actually sound like.

The voice in your head is louder. Deeper. Warmer. None of it is what other people hear.

When you speak, sound reaches your inner ear two ways. Through the air, like a microphone catches. And through your skull bones, vibrating straight into your cochlea. Bone conduction adds bass that air does not.

In 2023, the Royal Society published the proof. Researchers played voice clips with and without bone conduction. With it. Felt like your own voice. Without. A stranger.

Your recorded voice is the real one. The version everyone else hears. And you can not unhear it now.

Plug your ears. Hum. That bass you feel? Bone conduction. Follow kuz.

Sources

  1. Pisanski, K., et al. (2023). "Bone conduction facilitates self-other voice discrimination." Royal Society Open Science, 10(11), 221561. DOI: 10.1098/rsos.221561. The primary experiment: listeners only recognised recordings of their own voice as their own when the bone-conduction component was preserved in the playback. Removing bone conduction made the recording sound like a stranger. Open source
  2. Georg von Bekesy. 1961 Nobel Prize in Physiology or Medicine for discoveries concerning the physical mechanism of stimulation within the cochlea. Bekesy mapped how bone conduction and air conduction both deliver sound to the inner ear, the foundational physics behind every modern bone-conduction study. Open source
  3. Frontiers for Young Minds (2025). "How Air and Bones Can Help You to Hear." A peer-reviewed review written for a general audience that walks through both pathways, the cochlear response to each, and why recordings sound thinner than the voice inside your head. Open source

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