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How to Improve Speech-to-Text Accuracy Around Background Noise

Kushani Nimanthika Oct 9, 2026 869 views

Question details

The user wants to improve the accuracy of speech-to-text software when there are background noises or nearby conversations in the same room.

How to Improve Speech-to-Text Accuracy Around Background Noise

Product: Speech-to-Text Software
Device & OS: not provided
Scenario: Using dictation or voice typing tools in a shared workspace or noisy room.
Observed behavior: The dictation software incorrectly captures nearby conversations and background noises, and software settings alone are unable to filter out these secondary voices.

Before you start

Before purchasing new equipment, ensure your current microphone is selected as the default input device in your system settings and lower the input sensitivity to reduce background noise pickup.

Solution 1Recommended

Use a Directional or Cardioid Microphone

Upgrading your hardware to a directional microphone is the most effective way to isolate your voice from background conversations.

Since software algorithms cannot completely eliminate nearby conversations, using the correct type of microphone is essential. Cardioid microphones are specifically designed to pick up sound primarily from the front while rejecting noise from the sides and rear, making them ideal for noisy environments.

Select a cardioid microphone

Acquire a directional or cardioid microphone rather than relying on a laptop's built-in omnidirectional microphone, which picks up sound from all directions.

Position the microphone correctly

Place the microphone directly in front of you, ensuring the active recording element is pointed securely toward your mouth.

Use a headset alternative

If a desktop cardioid mic is unavailable, connect a high-quality headset with a boom microphone and position the mic about an inch away from the corner of your mouth.

Adjust system audio sensitivity

Open your computer's audio input settings and manually lower the microphone gain so it only activates for louder, closer sounds like your direct voice.

Use a Directional or Cardioid Microphone

Headset Convenience: A headset with a built-in microphone positioned near your mouth is a highly convenient and affordable hardware option for maximizing voice recognition accuracy.

Efficient Document Creation

Boost Your Productivity with WPS Office Dictation

WPS Office provides seamless speech-to-text integration, helping you draft documents quickly and effortlessly. Paired with a suitable microphone, you can experience highly accurate, hands-free typing to maximize your workflow.

1. Open WPS Writer: Launch WPS Office and create a new blank Writer document.
2. Access the dictation tool: Navigate to the Home or Insert tab on the top ribbon and locate the Dictation or Voice Typing feature.
3. Start voice typing: Click the microphone icon, ensure your cardioid or headset microphone is selected, and begin speaking clearly.

Integrated dictation features for rapid document draftingFully compatible with Microsoft Word (.docx) formatsLightweight architecture ensures fast performance during voice processingCross-platform support across Windows, Mac, and mobile devices

microsoft office alternative - wps office

Frequently Asked Questions

Can speech-to-text software completely remove background voices?

No, dictation software alone cannot perfectly isolate your voice if other people are speaking nearby. Hardware solutions like directional microphones are required for the best results.

What is the best type of microphone for dictation in a noisy room?

A directional or cardioid microphone is highly recommended because it focuses on sound coming from directly in front of it. A headset with a boom mic is also a very effective option.

Why does my laptop pick up everyone's conversation when I try to dictate?

Most built-in laptop microphones are omnidirectional, meaning they are designed to capture sound equally from all directions in the room. This makes them poorly suited for speech-to-text in noisy environments.

How close should a headset microphone be to my mouth?

For optimal voice recognition and to prevent popping or breathing noises, position the headset microphone approximately one to two inches away from the corner of your mouth.

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