Streaming delivery
Start speaking before the full response is complete
Stream generated audio in chunks to reduce perceived delay in agents, assistants, IVR flows, and interactive applications.
Build / Text to speech
Text to Speech In Real Time
Generate low-latency speech from text for previews, live agents, IVR flows, and product experiences.
Low-latency speechScript previewVoice tuning
Connect realtime tts to your existing tools
REST APIs
WebSockets
Voice agents
Telephony
Web apps
Mobile apps
From text to playback
A streaming path tuned for natural turn-taking.
Prepare the voice, send text incrementally, begin playback early, and monitor the full path so conversations stay responsive.
- 01
Send text
Provide complete text or stream response tokens from your application.
- 02
Apply voice settings
Select the voice, language, format, and delivery controls.
- 03
Receive audio
Begin playback as audio chunks arrive instead of waiting for the full file.
- 04
Observe delivery
Track timing, errors, usage, and the experience callers receive.
Inside the speech pipeline
Every millisecond between text and speech has a job.
Fast voice experiences depend on more than synthesis speed. Text handling, delivery controls, and resilient streaming must work as one responsive pipeline.
Speech control
Make important words sound right
Choose an appropriate voice and guide pace, pronunciation, pauses, and delivery for names, numbers, and domain language.
Developer workflow
Move from a script preview to a live experience
Use the same speech layer for prototypes and production, with predictable request handling, observability, and fallback behavior.
Live speech stream
Live Speech Streaming
Stream speech into the products and channels you already run.
Plan your integrationRealtime TTS exampleAudio streaming
- 1CustomerYour order is ready for collection at the Indiranagar location.
- 2Realtime TTSFirst audio received while the remaining response is generated.
- 3Connected actionPlayback buffer healthy
Input handling, synthesis, and resilient delivery remain synchronized from the first text fragment to the final audio frame.
Use cases
Where realtime tts helps your team.
Live AI agents
Speak dynamic responses without breaking the flow of conversation.
More responsive callsVoice interfaces
Add spoken output to apps, kiosks, and connected experiences.
Accessible interactionIVR and alerts
Generate changing prompts, status messages, and notifications on demand.
Current informationRealtime TTS at a glance
The details your team can evaluate.
Stream
audio as text is generated
Tune
voice, pace, and pronunciation
Scale
from preview to live workflows
Streaming engine
Text becomes playable speech in one responsive path.
Input handling, synthesis, and resilient delivery remain synchronized from the first text fragment to the final audio frame.
Streaming delivery
Start speaking before the full response is complete
Stream generated audio in chunks to reduce perceived delay in agents, assistants, IVR flows, and interactive applications.
Speech stream
Frequently asked questions
What builders ask about realtime synthesis.
A practical overview of realtime tts, setup, and how your team stays in control.
What makes realtime TTS different from standard TTS?
Realtime TTS is designed to return playable audio incrementally, which reduces the wait before speech begins and makes it better suited to live conversations and interactive products.
Can pronunciation be customized?
Pronunciation can be guided for names, acronyms, numbers, and specialist terms. Important scripts should still be previewed with the selected voice and language before launch.
Which audio format should an application use?
Choose a format supported by the playback or telephony environment, balancing quality, bandwidth, and transcoding needs. The right choice depends on where the audio will be used.
Can it be used outside phone calls?
Yes. Realtime speech can power web and mobile assistants, accessibility features, kiosks, games, training tools, and other responsive voice interfaces.
Start building
Put low-latency speech into one live product experience.
Start with one realtime tts workflow, connect the tools it needs, and expand from real results.
✓ Low-latency speech✓ Script preview✓ Voice tuning