AWS Polly

Amazon Polly converts text to lifelike speech using deep learning models. It offers standard neural voices and supports SSML for fine-grained control over speech output — ideal for telephony and IVR systems.

Getting Started

Follow these steps to configure your provider:

Add AWS credentials to your vault

Navigate to Integration → Vault in the Rapida dashboard. Add your AWS Access Key ID and Secret Access Key. The IAM role needs AmazonPollyReadOnlyAccess or a scoped polly:SynthesizeSpeech permission.

Select AWS Polly as your TTS provider

When configuring your assistant, open Audio Settings and choose AWS as your Text-to-Speech provider.

Choose a voice and language

Polly offers 60+ voices across 30+ languages. Choose the voice that matches your assistant’s target language and persona.

Voice Types

Type	Description
Neural	Higher quality, more natural-sounding voices using a neural TTS engine
Standard	Concatenative synthesis — lower cost, suitable for basic use cases

Neural voices are recommended for production voice assistants.

Popular Voices

Voice ID	Language	Gender
`Joanna`	English (US)	Female
`Matthew`	English (US)	Male
`Amy`	English (UK)	Female
`Brian`	English (UK)	Male
`Léa`	French	Female
`Lupe`	Spanish (US)	Female

SSML Support

Polly supports SSML tags for granular speech control:

<speak>
  Welcome back, <emphasis level="strong">valued customer</emphasis>.
  Your appointment is scheduled for <say-as interpret-as="date" format="mdy">12/25/2025</say-as>.
  <break time="500ms"/>
  Is there anything else I can help you with?
</speak>

Configuration Options

Option	Description
Region	AWS region for Polly (e.g. `us-east-1`)
Voice ID	Polly voice identifier
Engine	`neural` or `standard`
Language code	BCP-47 language code (required for some bilingual voices)
Sample rate	Output audio sample rate (8000 or 16000 Hz for telephony)

Notes

Neural voices are not available in all AWS regions. Check the Polly neural voice list.
For telephony use cases, set sample rate to 8000 Hz to match PSTN audio formats.
Pricing is per character synthesized. See AWS Polly pricing.

Assistants

Knowledge

LLM Endpoint

Activity & Logs

External Integrations

Credentials

Workspace

Governance

Deployment Options

Getting Started

Voice Types

Popular Voices

SSML Support

Configuration Options

Notes

​Getting Started

​Voice Types

​Popular Voices

​SSML Support

​Configuration Options

​Notes

​Related

Getting Started

Voice Types

Popular Voices

SSML Support

Configuration Options

Notes

Related