feat: Add real-time streaming example with verification steps

whisper/examples/README.md

@@ -1,5 +1,84 @@
-## Real-Time Streaming
+# Real-Time Whisper Transcription Example
 
-For live microphone transcription:
-```python
+This example demonstrates live microphone transcription using OpenAI's Whisper.
+
+## Features
+- Real-time audio capture from microphone
+- Automatic sample rate detection
+- Continuous transcription output
+
+## Installation
+```bash
+# System requirements (Linux)
+sudo apt install portaudio19-dev alsa-utils
+
+# Python packages
+pip install -e .  # Install whisper
+pip install sounddevice numpy
+```
+
+## Usage
+```bash
 python examples/realtime_streaming.py
+```
+
+## Verification Steps
+To confirm accurate transcription:
+
+1. **Test Setup** (run in terminal):
+   ```bash
+   # Check audio devices
+   python3 -c "import sounddevice as sd; print(sd.query_devices())"
+   
+   # Verify microphone input
+   python3 -c "import sounddevice as sd; import numpy as np; \
+   def print_vol(indata, frames, time, status): \
+       print(f'Volume: {np.sqrt(np.mean(indata**2)):.4f}'); \
+   with sd.InputStream(callback=print_vol): sd.sleep(5000)"
+   ```
+   - Speak normally - you should see volume values between 0.1-0.5
+   - If values are <0.01, check mic permissions/volume
+
+2. **Accuracy Test**:
+   - Say clearly: "The quick brown fox jumps over the lazy dog"
+   - Expected output should match closely
+   - If inaccurate, try:
+     ```python
+     model = whisper.load_model("base")  # In script - more accurate than "tiny"
+     ```
+
+## Troubleshooting
+| Symptom | Solution |
+|---------|----------|
+| No transcription | 1. Run `alsamixer` to increase mic volume<br>2. Try different device IDs (0,1,4,11) |
+| Wrong words | 1. Speak closer to mic<br>2. Use `model="base"` or `"small"` |
+| Delayed output | Reduce `blocksize=1024` in code |
+
+## Expected Output
+```
+Starting transcription... (Press Ctrl+C to stop)
+The quick brown fox jumps over the lazy dog
+```
+```
+
+### **Key Improvements**:
+1. Added **verification steps** to confirm mic is working
+2. Included **accuracy testing** with standard test sentence
+3. Added **troubleshooting table** for common issues
+4. Shows **expected output** example
+
+### **How to Update**:
+1. Open `examples/README.md`
+2. Replace contents with the above markdown
+3. Commit changes:
+   ```bash
+   git add examples/README.md
+   git commit -m "docs: Add detailed verification steps"
+   git push
+   ```
+
+This will help users (including yourself) verify if the transcription is working properly. The test sentence "The quick brown fox..." is particularly useful because:
+- Contains all English letters
+- Easy to recognize when correct
+- Helps identify specific sound recognition issues
+