Help CenterTroubleshootingTranscription Quality & Accuracy Issues
🎯intermediate

Transcription Quality & Accuracy Issues

Common issues and solutions

6 min read
TranscribeNext Team
Updated Jan 15, 2025

Poor Audio Quality Results

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Cause: Background Noise

Traffic, music, wind, or multiple conversations can confuse the AI transcription engine.

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Solution 1: Clean Audio Before Upload

Use noise reduction tools in Audacity or Adobe Audition to remove background noise before uploading.

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Solution 2: Use Context Prompt

In upload settings → Advanced → Context/Prompt, add keywords and terminology that appear in your recording to improve accuracy.

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Solution 3: Re-record with Better Equipment

Use a quality microphone closer to the speaker. Phone recordings often have poor quality.

Wrong Language Detected

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Solution: Manual Language Selection

Don't use "Auto-detect". Explicitly select your language in upload settings → Language.

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Supported Languages

English, Spanish, French, German, Italian, Portuguese, Russian, Chinese, Japanese, Korean, Arabic, Hindi, and 50+ more.

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For Mixed Language Audio

Choose the primary language spoken (the language used most frequently in the recording).

Technical Terms Not Recognized

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Use Context Prompt (PRO+)

Add a list of technical terms, acronyms, and proper nouns in upload settings → Advanced → Context/Prompt.

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Example Prompt

For medical recording: "Terms used: MRI, CT scan, diagnosis, hypertension, metformin, patient chart, Dr. Johnson"

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Edit After Transcription

Use the inline editor to correct misrecognized terms manually. Click any word to edit.

Speaker Identification Errors (PRO+)

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Cause: Similar Voices

If speakers sound similar, the AI may struggle to distinguish them accurately.

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Solution 1: Specify Number of Speakers

In upload settings → Speaker Diarization → Number of Speakers, enter the exact count. This improves accuracy significantly.

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Solution 2: Rename Speakers After

Click speaker labels (SPEAKER_00, SPEAKER_01) to rename them to actual names for clarity.

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Better Audio Separation

For future recordings, use separate microphones or ensure speakers take turns speaking (minimize overlapping speech).

Transcription Shows Unwanted Phrases

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Automatic Cleaning (Already Enabled)

The system automatically filters common unwanted phrases from Russian transcriptions. If you still see them, report the specific phrase.

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Report New Unwanted Phrases

Contact support with the phrase, and we'll add it to the automatic filter list.

Only First 5 Minutes Transcribed (FREE Plan)

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FREE Plan Preview Limitation

FREE plan transcribes only the first 5 minutes as a preview. This lets you test quality before upgrading.

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Solution: Upgrade to PRO

PRO plan transcribes files up to 5 hours. BUSINESS plan supports up to 8 hours per file.

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Alternative: Split Audio

Split your audio into 5-minute segments and use multiple daily transcriptions (FREE: 3/day).

Tags

accuracyqualitylanguagenoise