mnemofy 2.6.4
Extract audio from media files, transcribe speech, and produce documented meeting notes
License: MIT
Requires Python: <3.15,>=3.9

# mnemofy

![mnemofy Logo](https://raw.githubusercontent.com/tiroq/mnemofy/main/assets/mnemofy.png)

**mnemofy** extracts audio from media files, transcribes speech using faster-whisper, and produces structured meeting notes with topics, decisions, action items, and mentions with timestamps.

## Features

- 🎵 **Audio Extraction**: Automatically extracts audio from video files using ffmpeg
- 🎤 **Speech Transcription**: Fast local transcription using faster-whisper (no API keys needed)
- 🎯 **Meeting Type Detection**: Automatically detects meeting types (status, planning, design, demo, etc.)
- 🤖 **LLM Integration**: Optional AI-enhanced notes with OpenAI or Ollama
- 📝 **Structured Notes**: Generates type-specific Markdown notes with:
  - Topics discussed with timestamps
  - Decisions made with timestamps
  - Action items with timestamps and @mentions
  - Full transcript with timestamps
- 🔧 **Transcript Preprocessing**: Clean transcripts with normalization and AI-powered error repair
- 💬 **Interactive UX**: Visual menus for model and meeting type selection
- 📊 **Model-Aware Artifacts**: Enriched metadata tracking which models generated each artifact
- 🗂️ **Processing Metadata**: Complete audit trail of processing pipeline and configuration
- 🎯 **Supported Formats**: aac, mp3, wav, mkv, mp4
- 🚀 **Production Ready**: Clean modular architecture, type hints, error handling

## Installation

### Prerequisites

1. **Python 3.9+** is required
2. **ffmpeg** must be installed:
   ```bash
   # Ubuntu/Debian
   sudo apt install ffmpeg
   
   # macOS
   brew install ffmpeg
   
   # Fedora
   sudo dnf install ffmpeg
   
   # Arch
   sudo pacman -S ffmpeg
   
   # Windows
   # Download from https://ffmpeg.org/download.html
   ```

### Install from PyPI (Recommended)

**Using pipx** (isolated environment - recommended):
```bash
# Install pipx (if not already installed)
pip install --user pipx
pipx ensurepath

# Install mnemofy
pipx install mnemofy

# Verify installation
mnemofy version
```

**Using pip** (system-wide installation):
```bash
pip install mnemofy

# Verify installation
mnemofy version
```

### Install from Source (Development)

For development or running the latest code from main branch:

```bash
# Clone the repository
git clone https://github.com/tiroq/mnemofy.git
cd mnemofy

# Install the package in editable mode
pip install -e .

# Or install with development dependencies
pip install -e ".[dev]"

# Verify installation
mnemofy version
```

### Distribution-Specific Instructions

**Ubuntu 22.04 / Debian 12:**
```bash
sudo apt update
sudo apt install -y python3 python3-pip ffmpeg
pipx install mnemofy
```

**Ubuntu 20.04 / Debian 11 (Python 3.8 - requires upgrade):**
```bash
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install -y python3.10 python3.10-venv python3-pip ffmpeg
python3.10 -m pip install --user pipx
pipx install mnemofy --python python3.10
```

**Fedora / CentOS / RHEL:**
```bash
sudo dnf install -y python3 python3-pip ffmpeg
python3 -m pip install --user pipx
pipx install mnemofy
```

**Arch / Manjaro:**
```bash
sudo pacman -Syu python python-pip ffmpeg
python -m pip install --user pipx
pipx ensurepath
pipx install mnemofy
```

**macOS:**
```bash
# Using Homebrew (recommended)
brew install python ffmpeg
pip install --user pipx
pipx ensurepath
pipx install mnemofy

# Or using MacPorts
sudo port install python312 ffmpeg
python3.12 -m pip install --user pipx
pipx install mnemofy --python python3.12
```

**Windows:**
1. Install Python 3.12+ from https://www.python.org/downloads/
2. Install ffmpeg from https://ffmpeg.org/download.html or via Chocolatey:
   ```powershell
   choco install ffmpeg
   ```
3. Install mnemofy:
   ```powershell
   pip install --user pipx
   pipx install mnemofy
   ```

### Docker Installation

Run mnemofy in a Docker container without installing on your system:

```bash
docker run -v $(pwd):/workspace --rm \
  python:3.12-slim sh -c \
  "apt-get update && apt-get install -y ffmpeg && \
   pip install mnemofy && \
   mnemofy transcribe /workspace/yourfile.mp4"
```

### Verify Installation

```bash
# Check version
mnemofy version

# Show all available models
mnemofy transcribe --list-models

# View help
mnemofy transcribe --help
```

## Upgrade

### Upgrade from PyPI

**If you installed with pipx:**
```bash
pipx upgrade mnemofy
```

**If you installed with pip:**
```bash
pip install --upgrade mnemofy
```

**To upgrade to a specific version:**
```bash
# Using pipx
pipx install mnemofy==1.2.3

# Using pip
pip install mnemofy==1.2.3
```

### Upgrade from Source

If you installed from source and want the latest development version:

```bash
cd path/to/mnemofy
git pull origin main
pip install -e .
```

### Check for Updates

```bash
# View current version
mnemofy version

# Check PyPI for latest version
pip index versions mnemofy
```

### Breaking Changes

Check [CHANGELOG.md](CHANGELOG.md) for breaking changes before upgrading to a major version.

## Troubleshooting

### "externally-managed-environment" Error (Linux/Debian/Ubuntu)

Modern Debian/Ubuntu systems (23.04+, Debian 12+) implement PEP 668 to prevent breaking system Python packages.

**Error message:**
```
error: externally-managed-environment

× This environment is externally managed
```

**Solutions** (in order of preference):

**Option 1: Use pipx (Recommended)**
```bash
# Install pipx via your package manager
sudo apt install pipx        # Ubuntu/Debian
# or
sudo dnf install pipx        # Fedora
# or
sudo pacman -S pipx          # Arch

# Install mnemofy
pipx install mnemofy

# Add pipx to PATH if needed
pipx ensurepath
source ~/.bashrc
```

**Option 2: User-level installation with pip**
```bash
python3 -m pip install --user mnemofy
# Add to PATH
export PATH="$HOME/.local/bin:$PATH"
```

**Option 3: Virtual environment**
```bash
python3 -m venv ~/mnemofy-env
source ~/mnemofy-env/bin/activate
pip install mnemofy
# Use: ~/mnemofy-env/bin/mnemofy transcribe file.mp4
```

**Option 4: Override (not recommended)**
```bash
python3 -m pip install --break-system-packages mnemofy
# This may break your system Python installation
```

See [INSTALL_LINUX.md](INSTALL_LINUX.md#if-you-encounter-externally-managed-environment-error) for detailed Linux installation guide.

### Command Not Found

If `mnemofy` is not found after installation:

```bash
# Check if ~/.local/bin is in PATH
echo $PATH | grep .local/bin

# If not, add it to your shell profile (~/.bashrc, ~/.zshrc, etc.)
export PATH="$HOME/.local/bin:$PATH"

# Reload shell
source ~/.bashrc  # or ~/.zshrc
```

### Python Too Old (< 3.9)

If you see a Python version error:

**Ubuntu/Debian (upgrade to Python 3.10+):**
```bash
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.12 python3.12-venv

# Install mnemofy with the newer Python
pipx install mnemofy --python python3.12
```

**Other distributions:**
Download Python 3.12+ from [python.org](https://www.python.org/downloads/) or use your distribution's package manager.

### FFmpeg Missing

If you get "ffmpeg not found" error:

```bash
# Ubuntu/Debian
sudo apt install ffmpeg

# Fedora
sudo dnf install ffmpeg

# macOS
brew install ffmpeg

# Arch
sudo pacman -S ffmpeg

# Verify installation
ffmpeg -version
```

### Model Download Issues

If models fail to download:

```bash
# Check internet connection
ping huggingface.co

# Clear cache and retry
rm -rf ~/.cache/huggingface/
mnemofy transcribe --model tiny audio.mp3

# Use offline mode (if models already cached)
HF_HUB_OFFLINE=1 mnemofy transcribe audio.mp3
```

### Out of Memory Issues

If you get memory errors:

```bash
# Use a smaller model
mnemofy transcribe file.mp4 --model tiny

# Disable GPU
mnemofy transcribe file.mp4 --no-gpu

# Set memory limit for the process
python -c "import resource; resource.setrlimit(resource.RLIMIT_AS, (2*1024**3, -1))" && \
mnemofy transcribe file.mp4 --model base
```

### Need Help?

- **Full documentation**: [INSTALL_LINUX.md](INSTALL_LINUX.md), [docs/](docs/)
- **Quick start**: [QUICKSTART_LINUX.md](docs/QUICKSTART_LINUX.md)
- **Issues**: [GitHub Issues](https://github.com/tiroq/mnemofy/issues)
- **Discussions**: [GitHub Discussions](https://github.com/tiroq/mnemofy/discussions)

## Usage

### Basic Usage

Transcribe an audio or video file:

```bash
mnemofy transcribe meeting.mp4
```

This will create `meeting_notes.md` in the same directory.

### Automatic Model Selection

mnemofy **automatically detects your system resources** (CPU, RAM, GPU) and selects the best Whisper model that fits in your available memory:

- **Tiny** (1.0 GB): Fastest, suitable for low-RAM systems
- **Base** (1.5 GB): Good balance of speed and accuracy
- **Small** (2.5 GB): Better accuracy, requires 8GB+ RAM
- **Medium** (5.0 GB): High accuracy, requires 16GB+ RAM  
- **Large-v3** (10.0 GB): Best accuracy, requires 32GB+ RAM with GPU

**Default behavior** (recommended):
```bash
mnemofy transcribe meeting.mp4
# ✓ Detects your system (RAM, GPU, CPU)
# ✓ Shows interactive menu (if in terminal)
# ✓ You select desired model with ↑↓ arrow keys
# ✓ Falls back to auto-selection on headless systems
```

**Skip auto-detection** with explicit model:
```bash
mnemofy transcribe meeting.mp4 --model tiny
# ✓ Uses tiny model directly (no detection/menu)
```

**Headless mode** (CI/automated environments):
```bash
mnemofy transcribe meeting.mp4 --auto
# ✓ Detects resources
# ✓ Auto-selects best model
# ✓ No interactive menu (suitable for cron, CI/CD)
```

**CPU-only mode** (disable GPU):
```bash
mnemofy transcribe meeting.mp4 --no-gpu
# ✓ Forces CPU-based transcription
# ✓ Useful if GPU causes issues
```

**View available models**:
```bash
mnemofy transcribe --list-models
# Shows model comparison table with your system specs
```

### Advanced Options

```bash
# Specify output directory for all files
mnemofy transcribe meeting.mp4 --outdir outputs/

# Specify output file for notes only
mnemofy transcribe meeting.mp4 -o notes/meeting_summary.md

# Set a custom title for the notes
mnemofy transcribe meeting.mp4 -t "Team Sprint Planning"

# Specify transcription language (ISO 639-1 code)
mnemofy transcribe meeting.mp4 --lang es  # Spanish
mnemofy transcribe meeting.mp4 --lang fr  # French

# Choose notes generation mode
mnemofy transcribe meeting.mp4 --notes basic  # Deterministic extraction (default)
mnemofy transcribe meeting.mp4 --notes llm    # AI-enhanced with LLM

# Meeting type detection
mnemofy transcribe meeting.mp4 --meeting-type auto      # Auto-detect (default)
mnemofy transcribe meeting.mp4 --meeting-type status    # Explicit type
mnemofy transcribe meeting.mp4 --classify llm           # Use LLM for classification

# Transcript preprocessing (quality improvements)
mnemofy transcribe meeting.mp4 --normalize               # Clean stutters, fillers
mnemofy transcribe meeting.mp4 --normalize --remove-fillers  # Remove um, uh, etc.
mnemofy transcribe meeting.mp4 --repair --llm-engine ollama  # AI-powered error repair

# LLM configuration 
mnemofy transcribe meeting.mp4 --notes llm --llm-engine openai
mnemofy transcribe meeting.mp4 --notes llm --llm-engine ollama --llm-model llama3.2:3b

# Interactive/non-interactive modes
mnemofy transcribe meeting.mp4                # Interactive menus (terminal)
mnemofy transcribe meeting.mp4 --no-interactive  # Automation-friendly

# Verbose logging (debugging & performance)
mnemofy transcribe meeting.mp4 --verbose      # Shows LLM timing, detection details

# Keep the extracted audio file
mnemofy transcribe video.mkv --keep-audio
```

## Output Files

mnemofy generates **multiple output files** from each transcription:

```
meeting.mp4  (input)
├── meeting.transcript.txt      # Timestamped plain text
├── meeting.transcript.srt      # SubRip subtitle format  
├── meeting.transcript.json     # Structured JSON with enriched metadata
├── meeting.notes.md            # Structured meeting notes
├── meeting.metadata.json       # Processing metadata (NEW)
└── meeting.artifacts.json      # Artifacts index (NEW)
```

### File Descriptions

1. **`.transcript.txt`** - Timestamped text transcript
   - Format: `[HH:MM:SS–HH:MM:SS] text`
   - Best for: Reading, searching, printing
   
2. **`.transcript.srt`** - SubRip subtitle file
   - Format: Standard SRT (sequence number, timing, text)
   - Best for: Video subtitles in VLC, subtitle editors
   
3. **`.transcript.json`** - Structured JSON with enriched metadata
   - Contains: Metadata (engine, model, language, quality/speed ratings) + segments
   - Includes: Model specs, word count, segment count, preprocessing flags
   - Best for: Programmatic access, data analysis
   
4. **`.notes.md`** - Structured meeting notes
   - Sections: Metadata, Topics, Decisions, Actions, Mentions, Risks, File Links
   - Best for: Quick review, sharing with team

5. **`.metadata.json`** - Processing metadata (NEW 📊)
   - ASR model: name, size, quality/speed ratings
   - LLM model: name, purpose (if used)
   - Configuration: language, flags, meeting type
   - Timing: start, end, duration
   - Statistics: word count, segments, transcript duration
   - Best for: Audit trails, cost tracking, reproducibility
   
6. **`.artifacts.json`** - Artifacts index (NEW 🗂️)
   - Index of all generated files
   - Model used for each artifact
   - File sizes and descriptions
   - Best for: Automation, workflows, batch processing

See [docs/MODEL_AWARE_ARTIFACTS.md](docs/MODEL_AWARE_ARTIFACTS.md) for detailed metadata documentation.

### Output Location

By default, files are created in the **same directory as the input file**:

```bash
mnemofy transcribe ~/Videos/meeting.mp4
# Creates: ~/Videos/meeting.transcript.{txt,srt,json}
#          ~/Videos/meeting.notes.md
#          ~/Videos/meeting.metadata.json
#          ~/Videos/meeting.artifacts.json
```

Use `--outdir` to specify a different location:

```bash
mnemofy transcribe meeting.mp4 --outdir ./transcripts/
# Creates: ./transcripts/meeting.transcript.{txt,srt,json}
#          ./transcripts/meeting.notes.md
#          ./transcripts/meeting.{metadata,artifacts}.json
```

### Get Help

```bash
# Show all options
mnemofy transcribe --help

# Show version
mnemofy version
```

## Meeting Type Detection

mnemofy automatically detects meeting types and generates appropriate structured notes.

### Supported Meeting Types

1. **status** - Daily standups, status updates, progress reviews
2. **planning** - Sprint planning, roadmap discussions, milestone planning
3. **design** - Technical design reviews, architecture discussions
4. **demo** - Product demos, feature showcases, customer presentations
5. **talk** - Presentations, lectures, knowledge sharing
6. **incident** - Postmortems, incident reviews, outage analysis
7. **discovery** - Discovery sessions, requirement gathering, brainstorming
8. **oneonone** - 1:1 meetings, performance reviews, career discussions
9. **brainstorm** - Creative sessions, ideation, problem-solving workshops

### Detection Modes

**Automatic Detection** (default):
```bash
mnemofy transcribe meeting.mp4
# ✓ Detects meeting type automatically
# ✓ Shows confidence score
# ✓ Interactive menu for confirmation (in terminal)
```

**Explicit Type**:
```bash
mnemofy transcribe meeting.mp4 --meeting-type planning
# ✓ Uses planning template directly
# ✓ Skips auto-detection
```

**LLM-Based Detection** (more accurate):
```bash
mnemofy transcribe meeting.mp4 --classify llm --llm-engine ollama
# ✓ Uses AI for classification
# ✓ Higher accuracy for ambiguous meetings
# ✓ Requires LLM engine configuration
```

### Interactive Meeting Type Selection

In interactive terminals, mnemofy shows a menu after detection:

```
┌─ Meeting Type Detection ──────────────────┐
│ Confidence: 75.0% (High confidence)       │
│                                           │
│   Type          Score   Description       │
│ → status ✓     75.0%    Daily standup...  │
│   planning     65.0%    Sprint planning   │
│   design       45.0%    Design review     │
│                                           │
│ Evidence: standup, updates, blockers      │
│                                           │
│ ↑↓ Navigate  Enter Select  Esc Recommended│
└───────────────────────────────────────────┘
```

Use `--no-interactive` to skip menu in automation:
```bash
mnemofy transcribe meeting.mp4 --no-interactive
```

## LLM Integration

mnemofy supports optional LLM engines for enhanced notes generation and classification.

### Supported Engines

1. **OpenAI API** - GPT-4o-mini, GPT-4, custom models
2. **Ollama** - Local models (llama3.2, mistral, etc.)
3. **OpenAI-compatible APIs** - Azure OpenAI, custom endpoints

### Configuration

#### Option 1: Environment Variables
```bash
# OpenAI
export OPENAI_API_KEY="sk-..."
mnemofy transcribe meeting.mp4 --notes llm

# Ollama (local)
mnemofy transcribe meeting.mp4 --notes llm --llm-engine ollama
```

#### Option 2: Configuration File
Create `~/.config/mnemofy/config.toml`:
```toml
[llm]
engine = "ollama"
model = "llama3.2:3b"
base_url = "http://localhost:11434"
timeout = 60
max_retries = 2
```

Then run:
```bash
mnemofy transcribe meeting.mp4 --notes llm
```

#### Option 3: CLI Flags (highest precedence)
```bash
mnemofy transcribe meeting.mp4 \
  --notes llm \
  --llm-engine openai \
  --llm-model gpt-4o-mini \
  --llm-base-url https://api.openai.com/v1
```

### LLM Features

**Enhanced Notes Generation**:
- Deeper decision extraction
- Inferred action item owners
- Contextualized summaries
- All claims grounded in transcript

**Improved Classification**:
- Higher accuracy for ambiguous meetings
- Better handling of mixed-type meetings
- Evidence-based confidence scores

**Transcript Repair**:
- Fix ASR errors automatically
- Comprehensive change log
- Preserves original meaning

## Transcript Preprocessing

Improve transcript quality before classification and notes generation.

### Normalization (Deterministic)

```bash
mnemofy transcribe meeting.mp4 --normalize
```

**Features**:
- **Stutter reduction**: "I I I think" → "I think"
- **Sentence stitching**: Joins segments across short pauses (≤500ms)
- **Number normalization**: "march three" → "March 3"
- **Optional filler removal**: Removes um, uh, "you know" (with `--remove-fillers`)

### LLM-Based Repair

```bash
mnemofy transcribe meeting.mp4 --repair --llm-engine ollama
```

**Features**:
- Fixes ASR misrecognitions
- Preserves original meaning strictly
- Generates detailed change log (*.changes.md)
- All changes include timestamps

### Combined Preprocessing

```bash
mnemofy transcribe meeting.mp4 \
  --normalize \
  --remove-fillers \
  --repair \
  --llm-engine openai
```

**Output includes**:
- `meeting.transcript.txt` (processed)
- `meeting.changes.md` (change log)
- `meeting.notes.md` (improved notes)

## Rerun Handling & Model Comparison

### Comparing Different Models

By default, reruns **overwrite** previous results. Use `--model-suffix` to preserve outputs from different models for side-by-side comparison:

```bash
# Compare quality across models
mnemofy transcribe meeting.mp4 --model tiny --model-suffix
mnemofy transcribe meeting.mp4 --model base --model-suffix
mnemofy transcribe meeting.mp4 --model small --model-suffix

# Result: All preserved with model in filename
# → meeting.tiny.transcript.json
# → meeting.base.transcript.json
# → meeting.small.transcript.json
```

**Files with model suffix**:
- `*.transcript.{txt,srt,json}` → `*.{model}.transcript.{txt,srt,json}`
- `*.metadata.json` → `*.{model}.metadata.json`
- `*.artifacts.json` → `*.{model}.artifacts.json`

### Run History Tracking

Every run is automatically logged to `*.run-history.jsonl`:

```bash
# View run history
cat meeting.run-history.jsonl | jq '.'

# Compare model performance
python examples/compare_model_runs.py meeting.run-history.jsonl
```

**Run history includes**:
- Timestamp, model name, processing duration
- Word count, segment count, transcript duration
- Configuration (language, normalization, etc.)

**Use cases**:
- 🔍 Compare model quality (word count, segment count)
- ⚡ Benchmark processing speed
- 📊 Track configuration changes over time
- 🎯 Find optimal model for your use case

See [docs/RERUN_HANDLING.md](docs/RERUN_HANDLING.md) for complete guide.

## Example Output

Given an audio file with meeting content, mnemofy generates structured Markdown (`.notes.md`) like:

```markdown
# Meeting Notes: meeting

**Date**: 2026-02-10
**Source**: meeting.mp4 (45m 30s)
**Language**: en
**Engine**: faster-whisper (base)
**Generated**: 2026-02-10T15:30:00Z

## Topics

- **[05:00–10:00]** Discussion about project roadmap and milestones
- **[15:30–20:15]** Review of last sprint deliverables
- **[30:00–35:45]** Planning for upcoming feature releases

## Decisions

- **[08:30]** We decided to use Python for the backend
- **[18:45]** Agreed to launch the MVP in Q2
- **[32:10]** Approved budget increase for infrastructure

## Action Items

- **[10:15]** John needs to create the API documentation
- **[22:30]** Sarah will follow up with the design team
- **[40:00]** Team should review security audit by Friday

## Concrete Mentions

### Names
- John (10:15, 12:30)
- Sarah (22:30, 25:00)

### Numbers  
- Q2 (18:45)
- $50,000 (32:10)

### URLs
- https://github.com/project/repo (15:00)

## Risks & Open Questions

### Open Questions
- How should we handle database migrations? **[25:30]**
- What's the timeline for QA testing? **[38:00]**

### Risks
- Potential delay due to third-party API integration **[28:15]**

## Transcript Files

- Full Transcript (TXT): meeting.transcript.txt
- Subtitle Format (SRT): meeting.transcript.srt 
- Structured Data (JSON): meeting.transcript.json
- Audio (WAV): meeting.mnemofy.wav
```

## Architecture

mnemofy follows a clean, modular architecture:

```
mnemofy/
├── src/mnemofy/
│   ├── __init__.py       # Package initialization
│   ├── audio.py          # Audio extraction using ffmpeg
│   ├── transcriber.py    # Speech transcription using Whisper
│   ├── notes.py          # Structured note generation
│   └── cli.py            # Command-line interface with Typer
├── tests/                # Test suite
├── pyproject.toml        # Modern Python packaging (PEP 621)
└── README.md
```

## Development

### Running Tests

```bash
pytest
```

### Linting and Type Checking

```bash
# Run ruff for linting
ruff check src/

# Run mypy for type checking
mypy src/
```

## Whisper Models

mnemofy supports all Whisper model sizes:

| Model  | Parameters | Speed      | Accuracy |
|--------|-----------|------------|----------|
| tiny   | 39M       | Fastest    | Good     |
| base   | 74M       | Fast       | Better   |
| small  | 244M      | Medium     | Great    |
| medium | 769M      | Slow       | Excellent|
| large  | 1550M     | Slowest    | Best     |

The default `base` model offers a good balance of speed and accuracy. Use `tiny` for quick tests or `medium`/`large` for maximum accuracy.

## Requirements

- Python 3.9-3.13 (Python 3.14+ not yet supported by dependencies)
- ffmpeg
- Dependencies (automatically installed):
  - typer - CLI framework
  - faster-whisper - Speech transcription
  - rich - Terminal UI and progress displays
  - pydantic - Data validation
  - jinja2 - Template rendering for notes
  - httpx - HTTP client for LLM APIs (optional)
  - tomli - TOML config file parsing (optional)
  - readchar - Keyboard input for interactive menus

## Troubleshooting

### Debugging with Verbose Mode

Enable verbose logging with `--verbose` or `-v` to see detailed diagnostic information:

```bash
mnemofy transcribe meeting.mp4 --verbose
```

Verbose mode shows:
- **Model selection**: System resources, compatible models, recommendation reasoning, menu latency
- **LLM operations**: Engine initialization, request timing, response sizes
- **Meeting type detection**: Heuristic vs LLM, confidence scores, execution time
- **Normalization/repair**: Change counts, processing duration
- **Interactive menus**: User selections, override decisions, interaction timing

Example verbose output:
```
[DEBUG] System resources detected: RAM=16.0GB, GPU=available
[DEBUG] Compatible models: ['tiny', 'base', 'small'], recommended: small
[DEBUG] LLM engine initialized in 234ms: gpt-4o-mini
[DEBUG] Heuristic detection: type=planning, confidence=85.0%, duration=12ms
[DEBUG] Meeting type menu interaction took 1850ms
[DEBUG] User accepted detected type: planning
[DEBUG] Basic extraction: 15 items in 45ms
```

This is invaluable for:
- Debugging LLM connectivity issues
- Understanding performance bottlenecks
- Validating detection accuracy
- Troubleshooting CI/automation failures

### Model Selection Issues

#### "No Whisper model fits in available RAM"

This means even the smallest model (tiny, 1.5 GB) requires more memory than available.

**Solutions**:
1. Close other applications to free memory
2. Use explicit tiny model: `mnemofy transcribe file.mp4 --model tiny`
3. Process shorter audio files
4. Upgrade system RAM
5. Use a machine with more RAM (cloud VM option)

#### CPU/GPU Not Detected

If model selection falls back to "base" when you expect GPU acceleration:

1. Check GPU availability:
   ```bash
   mnemofy transcribe --list-models
   # Look for "VRAM" row - should show your GPU memory if available
   ```

2. Verify GPU drivers (NVIDIA/Metal/ROCm) are installed:
   - **NVIDIA**: `nvidia-smi` should work
   - **macOS (Metal)**: Currently supported on macOS with Apple Silicon (ARM64); Intel Macs will fall back to CPU
   - **AMD (ROCm)**: Not yet implemented (planned for future release)

3. Force CPU mode if GPU causes issues:
   ```bash
   mnemofy transcribe file.mp4 --no-gpu
   ```

#### Interactive Menu Not Showing

If you expect the interactive menu but it skips to auto-selection:

- Menu requires a terminal (TTY), not suitable for pipes/redirects
- Use `--auto` explicitly for headless environments
- In CI/cron: model selection works automatically with `--auto`

### OpenMP Library Conflict (macOS)

If you encounter an error about `libiomp5.dylib already initialized`, set this environment variable:

```bash
export KMP_DUPLICATE_LIB_OK=TRUE
mnemofy transcribe your_file.mp4
```

Or run it inline:

```bash
KMP_DUPLICATE_LIB_OK=TRUE mnemofy transcribe your_file.mp4
```

This is a known issue with multiple OpenMP runtimes being linked (common with ctranslate2/faster-whisper).

### Audio Extraction Issues

#### ffmpeg Not Found

If you see `ffmpeg: command not found`:

**Solution**: Install ffmpeg:
```bash
# macOS
brew install ffmpeg

# Ubuntu/Debian
sudo apt install ffmpeg

# Windows (using Chocolatey)
choco install ffmpeg
```

Verify installation:
```bash
ffmpeg -version
```

#### Unsupported Video Codec

If audio extraction fails with codec errors:

1. Check if the video file is corrupted:
   ```bash
   ffplay your_video.mp4  # Should play without errors
   ```

2. Try converting to a standard format first:
   ```bash
   ffmpeg -i input.mkv -c:v libx264 -c:a aac output.mp4
   mnemofy transcribe output.mp4
   ```

3. Check container format is supported (mp4, mkv, mov, avi, webm)

#### Extracted Audio Quality Issues

If transcription accuracy is poor, the audio extraction might have issues:

- Verify audio channel: mnemofy extracts the first audio track
- For multi-audio files, extract specific track manually:
  ```bash
  ffmpeg -i video.mkv -map 0:a:1 audio.wav  # Extract 2nd audio track
  mnemofy transcribe audio.wav
  ```

## License

MIT License - see LICENSE file for details.