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Creating Voice Content with AI

Imagine crafting a podcast episode without a microphone or turning your blog post into an audiobook in minutes. AI voices are transforming how we create content—faster, cheaper, and more versatile than traditional recording. In this lesson, you’ll learn to write scripts AI can perform naturally, choose the perfect voice for your project, and seamlessly add AI-generated audio to videos or slides. Let’s turn your words into compelling voice content!

How Do AI Voices Work?

AI voice generators analyze thousands of human speech samples to learn patterns in pronunciation, rhythm, and emotion. When you input text, the AI predicts how a human would say it—but it’s only as good as your script. Garbage in, garbage out! That’s why your scriptwriting skills are the secret sauce.

Try It Now with Amazon Polly (Free Tier):

Create a free AWS account.
Go to the Amazon Polly Console.
Select Standard under Engine.
Toggle on SSML for SSML support.
Copy-paste this SSML snippet into the text box:

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SSML Tag	What It Does	Example
`<break time="1s"/>`	Adds a pause	"Hello world"
`<prosody rate="slow">`	Slows down speech	`<prosody rate="slow">Important</prosody>`
`<phoneme alphabet="ipa" ph="tʃɪˈpoʊtleɪ">`	Forces pronunciation using IPA symbols	"Chipotle" → `<phoneme...>`

Parameter	What It Controls	How to Adjust (Amazon Polly/Google TTS)	Example
Tone	Voice personality	Select from pre-built voices (e.g., "Joanna" for neutral, "Matthew" for warm)	`Voice ID: Joanna`
Pacing	Overall speech speed	Combine SSML `<prosody rate="90%">` with voice settings	Slower: `<prosody rate="slow">` Faster: `<prosody rate="fast">`
Pitch	High/low frequency	Use SSML: `<prosody pitch="high">` or select a voice type (e.g., "Child")	`<prosody pitch="+10%">Exciting!</prosody>`
Pauses	Breaks between phrases	Add `<break time="1s"/>` in your script	Script: `<break time="0.75s"/>`