Help CenterTranscription FeaturesUnderstanding Transcription Accuracy
📊beginner

Understanding Transcription Accuracy

Learn what affects transcription accuracy and how to get the best results from your audio files.

4 min read
TranscribeNext Team
Updated Jan 15, 2025

TranscribeNext uses state-of-the-art AI to deliver highly accurate transcriptions. However, accuracy depends on several factors you can control.

Expected Accuracy Rates

  • **90-95% accuracy** - Clear audio with minimal background noise
  • **85-90% accuracy** - Good audio with some background noise
  • **75-85% accuracy** - Poor audio quality, heavy accents, or multiple speakers talking over each other
  • **Under 75%** - Very poor audio, extreme background noise, or highly specialized terminology

Pro Tip

Our PRO and BUSINESS plans include enhanced accuracy AI models that perform better with challenging audio.

Factors That Affect Accuracy

**Audio Quality:**

  • Clear, high-quality recording = better accuracy
  • Low bitrate or compressed audio = lower accuracy
  • Professional microphones produce best results
  • Phone recordings work but may have lower accuracy

**Background Noise:**

  • Silent or quiet environments = highest accuracy
  • Music, traffic, or crowd noise = reduced accuracy
  • Echo or reverb = harder to transcribe
  • Wind noise or rustling = significantly impacts results

**Speaker Characteristics:**

  • Clear speaking voice = better accuracy
  • Strong accents = may reduce accuracy (still good though)
  • Mumbling or talking too fast = lower accuracy
  • Multiple speakers talking simultaneously = much harder to transcribe

**Content Type:**

  • Standard vocabulary = highest accuracy
  • Technical jargon = may need manual correction
  • Medical or legal terms = specialized models work better
  • Names and proper nouns = often need verification

How to Improve Accuracy

  1. 1**Use a good microphone** - Built-in laptop mics are okay, but external USB mics are much better
  2. 2**Record in a quiet room** - Close windows, turn off fans, silence phones
  3. 3**Speak clearly and slowly** - Don't rush, enunciate words properly
  4. 4**Keep microphone 6-12 inches from mouth** - Too close = distortion, too far = faint audio
  5. 5**Use speaker diarization** - Helps AI understand multiple speakers
  6. 6**Select the correct language** - Auto-detect works well, but manual selection is more reliable
  7. 7**Upload high-quality files** - WAV or high-bitrate MP3 (256kbps+) is ideal
  8. 8**Avoid background music** - Music confuses the AI and reduces accuracy

Tips for Different Use Cases

**Podcasts & Interviews:**

  • Enable speaker diarization to identify who is speaking
  • Use individual microphones for each person if possible
  • Avoid speaking over each other

**Meetings:**

  • Use a good conference microphone or meeting recorder bot
  • Ask participants to mute when not speaking
  • Reduce echo with acoustic panels or soft furnishings

**Lectures & Presentations:**

  • Use a lapel mic for the speaker
  • Record in a room with good acoustics (not too echoey)
  • Minimize audience noise

**Phone Calls:**

  • Use a good connection (not speakerphone)
  • Record in a quiet environment
  • Use call recording apps with high quality settings

Important

Some errors are inevitable with any AI transcription. Always review important transcriptions for accuracy.

What to Do About Errors

  • **Edit inline** - Click any word to fix mistakes directly
  • **Use find & replace** - Fix repeated errors quickly
  • **Add to dictionary** (coming soon) - Train AI on your specialized terms
  • **Provide feedback** - Report consistent errors to help us improve

Pro Tip

Even with 90% accuracy, editing is faster than typing from scratch. Focus on fixing critical errors first.

Tags

accuracyqualitytipsaudio