AssemblyAI Transcriber

Transcribe audio files with speaker diarization (who speaks when). Supports 100+ languages, automatic language detection, and timestamps. Use for meetings, interviews, podcasts, or voice messages. Requires AssemblyAI API key.

Transcribe audio files with speaker diarization (who speaks when).

Features

• ✅ Transcription in 100+ languages
• ✅ Speaker diarization (Speaker A, B, C...)
• ✅ Timestamps per utterance
• ✅ Automatic language detection
• ✅ Supports MP3, WAV, M4A, FLAC, OGG, WEBM

Setup

1. Create AssemblyAI account: https://www.assemblyai.com/
2. Get API key (free tier: 100 min/month)
3. Set environment variable:

export ASSEMBLYAI_API_KEY="your-api-key"

Or save to config file:

// ~/.assemblyai_config.json
{
  "api_key": "YOUR_API_KEY"
}

Usage

Transcribe local audio

python3 scripts/transcribe.py /path/to/recording.mp3

Transcribe from URL

python3 scripts/transcribe.py https://example.com/meeting.mp3

Options

python3 scripts/transcribe.py audio.mp3 --no-diarization  # Skip speaker labels
python3 scripts/transcribe.py audio.mp3 --json            # Raw JSON output

Output Format

## Transcript

*Language: EN*
*Duration: 05:32*

**Speaker A** [00:00]: Hello everyone, welcome to the meeting.
**Speaker B** [00:03]: Thanks! Happy to be here.
**Speaker A** [00:06]: Let's start with the first item...

Pricing

• Free Tier: 100 minutes/month free
• After: ~$0.01/minute

Tips

• For best speaker diarization: clear speaker changes, minimal overlap
• Background noise is filtered well
• Multi-language auto-detection works reliably

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Author: xenofex7 | Version: 1.1.0