Octave TTS

Octave TTS

Hume AI
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About

Cartesia Sonic-3 is a real-time, streaming text-to-speech (TTS) model designed to generate ultra-realistic, expressive voice output with extremely low latency, enabling AI systems to speak as fluidly as humans in live interactions. Built on advanced state space model architecture, Sonic delivers high-quality speech while achieving near-instant response times, with audio generation beginning in as little as 40–100 milliseconds, making conversations feel seamless rather than delayed. It is optimized for conversational AI use cases, acting as the “voice layer” for AI agents by converting text into natural-sounding speech that includes emotional nuance such as excitement, empathy, or even laughter. It supports more than 40 languages with native-level voices and accent localization, allowing developers to build globally accessible applications with consistent quality across regions.

About

Hume AI has introduced Octave (Omni-capable Text and Voice Engine), a groundbreaking text-to-speech system that leverages large language model technology to understand and interpret the context of words, enabling it to generate speech with appropriate emotions, rhythm, and cadence, unlike traditional TTS models that merely read text, Octave acts akin to a human actor, delivering lines with nuanced expression based on the content. Users can create diverse AI voices by providing descriptive prompts, such as "a sarcastic medieval peasant," allowing for tailored voice generation that aligns with specific character traits or scenarios. Additionally, Octave offers the flexibility to modify the emotional delivery and speaking style through natural language instructions, enabling commands like "sound more enthusiastic" or "whisper fearfully" to fine-tune the output.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers building real-time voice AI applications who need ultra-fast, human-like text-to-speech for conversational systems and interactive experiences

Audience

Content creators wanting a tool to produce expressive and contextually accurate voiceovers, enhancing listener engagement through lifelike storytelling

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$4 per month
Free Version Supported
Free Trial Supported

Pricing

$3 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Company Information

Cartesia
Founded: 2023
United States
cartesia.ai/sonic

Company Information

Hume AI
Founded: 2021
United States
www.hume.ai/blog/octave-the-first-text-to-speech-model-that-understands-what-its-saying

Alternatives

Alternatives

GPT-Live-1

GPT-Live-1

OpenAI
Fish Audio

Fish Audio

Hanabi AI
GPT-Live

GPT-Live

OpenAI
EVI 3

EVI 3

Hume AI
Voxtral TTS

Voxtral TTS

Mistral AI
Orpheus TTS

Orpheus TTS

Canopy Labs

Categories

Categories

Integrations

Hume AI Not Supported

Integrations

Hume AI Supported
Claim Cartesia Sonic-3 and update features and information
Claim Cartesia Sonic-3 and update features and information
Claim Octave TTS and update features and information
Claim Octave TTS and update features and information