whisper-transcription

Whisper Transcription

Transcribe any audio or video to text using OpenAI's Whisper model - the same technology powering ChatGPT voice features.

When to Use This Skill

• Podcast repurposing - Convert episodes to blog posts, show notes, social snippets
• Video subtitles - Generate SRT/VTT files for YouTube, social media
• Interview extraction - Pull quotes and insights from recorded calls
• Content audit - Make audio/video libraries searchable
• Translation - Transcribe and translate foreign language content

What Claude Does vs What You Decide

Claude Does	You Decide
Structures production workflow	Final creative direction
Suggests technical approaches	Equipment and tool choices
Creates templates and checklists	Quality standards
Identifies best practices	Brand/voice decisions
Generates script outlines	Final script approval

Dependencies

pip install openai-whisper torch ffmpeg-python click
# Also requires ffmpeg installed on system
# macOS: brew install ffmpeg
# Ubuntu: sudo apt install ffmpeg

Commands

Transcribe Single File

python scripts/main.py transcribe audio.mp3 --model medium --output transcript.txt
python scripts/main.py transcribe video.mp4 --format srt --output subtitles.srt

Batch Transcription

python scripts/main.py batch ./recordings/ --format txt --output ./transcripts/

Transcribe + Translate

python scripts/main.py translate foreign-audio.mp3 --to en

Extract Timestamps

python scripts/main.py timestamps podcast.mp3 --format json

Examples

Example 1: Podcast to Blog Post

# Transcribe 1-hour podcast
python scripts/main.py transcribe episode-42.mp3 --model medium

# Output: episode-42.txt (full transcript with timestamps)
# Processing time: ~5 min for 1 hour audio on M1 Mac

Example 2: YouTube Subtitles

# Generate SRT for video upload
python scripts/main.py transcribe marketing-video.mp4 --format srt

# Output: marketing-video.srt
# Upload directly to YouTube/Vimeo

Example 3: Batch Process Interview Library

# Transcribe all recordings in folder
python scripts/main.py batch ./customer-interviews/ --model small --format txt

# Output: ./customer-interviews/*.txt (one per audio file)

Model Selection Guide

Model	Speed	Accuracy	VRAM	Best For
tiny	Fastest	~70%	1GB	Quick drafts, short clips
base	Fast	~80%	1GB	Social media clips
small	Medium	~85%	2GB	Podcasts, interviews
medium	Slow	~90%	5GB	Professional transcripts
large	Slowest	~95%	10GB	Critical accuracy needs

Recommendation: Start with small for most marketing content. Use medium for client deliverables.

Output Formats

Format	Extension	Use Case
txt	.txt	Blog posts, analysis
srt	.srt	Video subtitles (YouTube)
vtt	.vtt	Web video subtitles
json	.json	Programmatic access
tsv	.tsv	Spreadsheet analysis

Performance Tips

1. GPU acceleration - 10x faster with CUDA GPU
2. Audio extraction - Script auto-extracts audio from video
3. Chunking - Long files auto-split for memory efficiency
4. Language detection - Automatic, or specify with --language

Skill Boundaries

What This Skill Does Well

• Structuring audio production workflows
• Providing technical guidance
• Creating quality checklists
• Suggesting creative approaches

What This Skill Cannot Do

• Replace audio engineering expertise
• Make subjective creative decisions
• Access or edit audio files directly
• Guarantee commercial success

Related Skills

• video-processing - Extract audio from video
• youtube-downloader - Download videos to transcribe
• content-repurposer - Transform transcripts to content
• podcast-production - Create podcasts

Skill Metadata

• Mode: cyborg

category: automation
subcategory: audio-processing
dependencies: [openai-whisper, torch, ffmpeg-python]
difficulty: beginner
time_saved: 10+ hours/week