I can help improve the voice quality and add Australian accent support! However, there are some important limitations to understand about the Web Speech API:

Voice Quality Limitations:

The Web Speech API uses system voices, so quality depends on what's installed on the user's device. We can't directly "improve" quality, but we can:

1. Select the best available voices
2. Optimize speech parameters (rate, pitch, volume)
3. Add fallback options for better voices
4. Provide user controls for customization

Australian Accent Implementation:

Key Improvements Made:

1. Australian Voice Detection & Selection:

• Prioritizes genuine Australian voices (en-AU)
• Falls back to high-quality English voices
• Searches for specific Australian voice names (Catherine, James, Karen, Lee)

2. Optimized Voice Quality Settings:

• Rate: 0.85x (slightly slower for clarity)
• Pitch: 1.1 (slightly higher for pleasantness)
• Volume: 0.9 (optimal level)
• Language: Set to 'en-AU' specifically

3. Australian Voice Priority List:

4. Enhanced Features:

• Voice Settings Panel: Customize all voice parameters
• Australian Voice Detection: Shows available Australian voices
• Test Voice Function: Try the voice with Australian phrases
• Australian Language: Updated explanations with Aussie expressions

5. Quality Improvements:

• Better error handling
• Voice availability checking
• Optimized speech parameters
• Platform-specific voice selection

Platform-Specific Australian Voices:

• Windows: Microsoft Catherine, Microsoft James
• macOS: Karen, Lee (with Australian accent)
• Android/Chrome: Google Australian English
• iOS Safari: Australian system voices

The system will automatically detect and use the best available Australian voice on each platform, with intelligent fallbacks for optimal quality!