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2026-09-20 · Sound Spotlight

Feel the Buzz: Voiced vs. Voiceless

Thai doesn't organize consonant pairs the way English does, so voiced-voiceless pairs like B/P and D/T can blur together.

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Thai speakers commonly mix up consonant pairs that English keeps carefully separate, because Thai's own sound system groups these consonants differently. Pairs like B/P, D/T, and G/K in English are distinguished mainly by one thing: whether your vocal cords buzz. B, D, and G are voiced — cords buzzing the whole time. P, T, and K are voiceless — no buzz at all. Mixing these up can turn 'pig' into 'big' or 'ten' into 'den' without you realizing it. Try this: place two fingers lightly on your throat. Say 'b' — feel the buzz start right away. Now say 'p' — no buzz, just a puff of air. Go back and forth: 'big/pig,' 'den/ten,' 'goat/coat,' fingers on your throat each time to check for that vibration. Spend two minutes on this contrast today. Once your fingers can reliably feel the difference, your mouth will start producing it more consistently too — it just takes steady, honest practice.

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Sources (1)
  • English Pronunciation for Thai Speakers | BoldVoice Blog
    • Thai speakers often confuse voiced and voiceless consonant pairs because Thai lacks this distinction.
    • The English /θ/ (voiceless) and /ð/ (voiced) 'th' sounds are absent in Thai, leading to substitutions with /s/, /t/, /z/, or /d/.
    • Thai speakers frequently substitute the English /f/ sound with /p/ due to similar articulatory positioning.

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