Text-to-Speech Demo - Complete Guide

Try different text-to-speech voices and engines. Preview AI voices before choosing for your application.

2 min read

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

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#

  1. Naturalness - Does it sound human?
  2. Clarity - Is it easy to understand?
  3. Emotion - Does it convey appropriate tone?
  4. Brand Fit - Does it match your brand?
  5. 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
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