Text-to-Speech Demo Guide
Test and compare different text-to-speech (TTS) voices for your AI voice applications.
How to Use
Step 1: Enter Text
- Type or paste your text
- Use SSML for advanced control
- Keep under character limit
Step 2: Select Voice
- Choose language/locale
- Select voice gender
- Pick voice style (neural/standard)
Step 3: Generate Audio
- Click play to preview
- Adjust settings as needed
- Download audio file
Voice Selection Guide
Voice Types
| Type | Quality | Cost | Use Case |
|---|---|---|---|
| Standard | Good | Low | IVR, notifications |
| Neural | Excellent | Medium | Customer-facing |
| Custom | Variable | High | Brand-specific |
Popular Voices by Language
English (US)
- Joanna - Professional female
- Matthew - Warm male
- Ivy - Young female
- Justin - Young male
English (UK)
- Amy - British female
- Brian - British male
Spanish
- Lucia - Standard Spanish
- Enrique - Standard Spanish male
SSML Tips
Basic SSML Tags
<!-- Add pauses -->
<break time="500ms"/>
<!-- Emphasize words -->
<emphasis level="strong">important</emphasis>
<!-- Change speed -->
<prosody rate="slow">Take your time</prosody>
<!-- Spell out -->
<say-as interpret-as="characters">ABC</say-as>
Advanced SSML
<!-- Phone numbers -->
<say-as interpret-as="telephone">+1-555-123-4567</say-as>
<!-- Dates -->
<say-as interpret-as="date" format="mdy">12/25/2024</say-as>
<!-- Currency -->
<say-as interpret-as="currency">$99.99</say-as>
Best Practices
For IVR Systems
- Use clear, neutral voices
- Keep sentences short
- Add appropriate pauses
- Test on phone lines
For Customer Service
- Choose warm, friendly voices
- Match brand personality
- Consider regional accents
- Ensure naturalness
For Accessibility
- Moderate speech rate
- Clear pronunciation
- Good audio quality
- Consistent volume
Quality Checklist
- Natural pronunciation
- Appropriate pace
- Clear enunciation
- Correct emphasis
- Natural pauses
- Good audio quality
Comparison Factors
When Choosing a Voice
- Naturalness - Does it sound human?
- Clarity - Is it easy to understand?
- Emotion - Does it convey appropriate tone?
- Brand Fit - Does it match your brand?
- Cost - Within budget?
Technical Specs
Audio Formats
| Format | Use Case |
|---|---|
| MP3 | Web, general use |
| WAV | High quality, editing |
| OGG | Web streaming |
| PCM | Telephony |
Sample Rates
- 8kHz - Telephony
- 16kHz - Voice assistants
- 22kHz - Good quality
- 48kHz - High quality
Related Tools
- SSML Editor - Advanced SSML editing
- Speech-to-Text Demo - Test speech recognition
- Voice Latency Tester - Test API latency