Inworld 收购语音智能体平台 Ultravox

AI 导读

Inworld 已收购语音智能体平台 Ultravox，并将内置语音迁移至 Realtime TTS-2。Ultravox 可理解用户语义、调用工具、完成任务，并实时处理轮次切换与打断。Realtime TTS-2 支持用自然语言内联指令调整语速、语气和情绪表达，例如在讲解复杂步骤时放慢语速再恢复正常。

正文

Inworld has acquired voice-agent platform Ultravox and already moved its built-in voices onto Realtime TTS-2.

Ultravox is a full voice agent platform. It understands what you said and what you meant, works through it, calls tools, finishes the task, and handles the turn taking and interruptions in real time.

Realtime TTS-2, which now sits behind the built-in Inworld voices on Ultravox, takes direction in plain language.
i.e. with inline instructions you can change pace, tone and emotional delivery for a specific stretch of speech.

So instead of setting a rate to 0.85 for the whole call, the agent can ask the voice to slow down while it walks someone through a complicated step, then go back to normal.