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Average Ratings 0 Ratings

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ease
features
design
support

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Description

Sonic is an advanced text-to-speech model designed specifically for real-time voice agents, featuring a natural delivery system with a response time of less than 90 milliseconds and supporting over 40 languages seamlessly. Its primary aim is to facilitate effortless voice interactions, characterized by a tone that adapts to various contexts, a steady pacing, and speech that aligns with the natural flow of conversation. Sonic automatically interprets the emotional nuances within transcripts, adjusting its delivery accordingly, and allows for the direct insertion of non-verbal cues like laughter into the spoken text. Faithful to the original transcripts, the model generates clear audio across different languages and voice options while effortlessly managing alphanumeric data, including order and phone numbers, email addresses, and IDs, without requiring any prior processing. Its context-aware pronunciation ensures that heteronyms are articulated correctly based on surrounding terms, and customizable pronunciation dictionaries empower teams to dictate how specific proper nouns and industry-related terminology should be pronounced. This comprehensive approach not only enhances the quality of interactions but also tailors the user experience to meet diverse communication needs.

Description

Inworld AI's Realtime TTS-2 represents a cutting-edge voice model designed for instantaneous dialogue, aiming to create a conversational experience that is as human-like as it sounds. This innovative system captures the entirety of an interaction, analyzing the user’s tone, rhythm, and emotional nuances, while also allowing developers to provide voice direction using simple English commands, similar to prompting an AI model. Unlike traditional speech generation that operates in isolation, this model incorporates the context of previous exchanges, ensuring that tone and pacing evolve throughout the conversation, meaning a response can have a completely different impact depending on the preceding context, such as humor or sadness. Furthermore, the Voice Direction feature empowers developers to guide the delivery of speech as a director would with an actor, using intuitive natural language rather than rigid emotion controls or sliders. Additionally, developers can integrate inline nonverbal cues like [sigh], [breathe], and [laugh] directly into the text, which the model seamlessly transforms into corresponding audio events. Notably, Realtime TTS-2 maintains a consistent voice identity across over 100 languages, allowing for smooth language transitions within a single interaction, enhancing its applicability in diverse multilingual settings. This capability ensures that conversations remain fluid and authentic, further bridging the gap between human and machine communication.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

ChatGPT
Claude
Gemini
Grok
Perplexity

Integrations

ChatGPT
Claude
Gemini
Grok
Perplexity

Pricing Details

$5 per month
Free Trial
Free Version

Pricing Details

$25 per month
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Cartesia

Founded

2023

Country

United States

Website

www.cartesia.ai/sonic

Vendor Details

Company Name

Inworld

Founded

2021

Country

United States

Website

inworld.ai/blog/realtime-tts-2

Product Features

Product Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

Alternatives

Alternatives

Inworld TTS Reviews

Inworld TTS

Inworld