Karla: Text to Speech

Karla voice

The voice Karla is available in the Azure Text-to-Speech service for the Spanish language.

How to use Karla voice in your videos

To use Karla voice in your videos, you can use the following JSON2Video code:

{
    "type": "voice",
    "model": "azure",
    "voice": "es-HN-KarlaNeural",
    "text": "En primavera, el jardín cobra vida con flores coloridas y pájaros cantando. El viejo roble proporciona sombra para los visitantes, mientras las mariposas bailan entre las rosas. Una pequeña fuente crea sonidos de paz, convirtiéndose en el lugar perfecto para relajarse y disfrutar de la belleza de la naturaleza."
}

$scene->addElement([
'voice',
'azure',
'es-HN-KarlaNeural',
'En primavera, el jardín cobra vida con flores coloridas y pájaros cantando. El viejo roble proporciona sombra para los visitantes, mientras las mariposas bailan entre las rosas. Una pequeña fuente crea sonidos de paz, convirtiéndose en el lugar perfecto para relajarse y disfrutar de la belleza de la naturaleza.'
]);

scene.addElement([
"voice",
"azure",
"es-HN-KarlaNeural",
"En primavera, el jardín cobra vida con flores coloridas y pájaros cantando. El viejo roble proporciona sombra para los visitantes, mientras las mariposas bailan entre las rosas. Una pequeña fuente crea sonidos de paz, convirtiéndose en el lugar perfecto para relajarse y disfrutar de la belleza de la naturaleza."
]);

Karla supports SSML

SSML stands for Speech Synthesis Markup Language. It's a way to add instructions to your text so that a Text-To-Speech (TTS) system knows how to read it aloud.

You use SSML like HTML, but for controlling speech. It helps you adjust things like: Pronunciation, Pauses, Pitch and Volume, Emphasis, Speaking Rate.

{
    "type": "voice",
    "voice": "es-HN-KarlaNeural",
    "text": "<speak>Hello, <break time="500ms"/> how are you today? <emphasis level="strong">This is important!</emphasis></speak>"
}

$scene->addElement([
'voice',
'es-HN-KarlaNeural',
'<speak>Hello, <break time="500ms"/> how are you today? <emphasis level="strong">This is important!</emphasis></speak>'
]);

scene.addElement([
"voice",
"es-HN-KarlaNeural",
"<speak>Hello, <break time="500ms"/> how are you today? <emphasis level="strong">This is important!</emphasis></speak>"
]);

Karla is a neural voice

In Azure Cognitive Services, a Neural voice refers to a voice generated using neural network technology. This means the Text-To-Speech system uses advanced machine learning models to create more natural, human-like speech compared to traditional methods.

Key characteristics of Neural voices:

• More expressive and realistic
• Better at handling pitch, tone, and rhythm variations
• Sounds closer to how humans naturally speak