How to improve voice-to-text accuracy

Quick answer

1. The microphone is the biggest lever

• A cheap wired headset outperforms most laptop mics.
• Keep the mic close and consistent, roughly 10 to 15 centimeters from your mouth.
• Avoid speaking straight into the mic; angle it slightly to reduce plosives.
• Bluetooth headsets add latency and compression; wired is more reliable for longer sessions.

2. The room matters more than you think

• Close the window if traffic is nearby.
• Turn off fans and air conditioning during a long dictation session.
• Avoid rooms with hard floors and bare walls; soft surfaces reduce echo.
• Do not dictate in coffee shops or open coworking spaces if the transcript needs to be clean.

3. Pick the right language variant

4. Pace and sentence shape

• Speak in full sentences, not word by word.
• Pause at commas and periods; the recognizer uses those pauses.
• Avoid trailing off; finish the sentence before you stop.
• Rehearse the first line of a paragraph in your head before you start speaking it.

5. Deal with proper nouns and jargon

• Spell a difficult name once at the top, then edit later.
• Use common phrasing during dictation, unusual phrasing during editing.
• For technical terms, dictate the closest natural word and correct it in the transcript.

6. Build a repeatable edit pass

The Zahvox workflow

Common mistakes

• Speaking too quietly, so the model guesses at the end of every word.
• Choosing the wrong language variant.
• Dictating in a noisy room and blaming the tool.
• Editing while dictating, which breaks the flow and causes half sentences.