AsyncAPI channel · Deepgram · Deepgram Text-to-Speech Streaming Events

`/v1/speak`

WebSocket channel for real-time text-to-speech streaming. The client sends text as JSON messages and receives synthesized audio as binary frames. Connection parameters include model, encoding, sample_rate, and container settings.

Open source AsyncAPI → All Deepgram channels Deepgram provider profile

Provider: Deepgram AsyncAPI: v2.6.0 Spec: Deepgram Text-to-Speech Streaming Events Operations: 2 Messages: 8

Channel address

/v1/speak

Operations

publish

sendTextForSpeech

Send text for speech synthesis

receiveSpeechAudio

Receive synthesized speech audio

Messages

TextInput

Text to synthesize into speech

Content-Type: application/json

Flush

Flush pending text

Content-Type: application/json

Reset

Reset the synthesis state

Content-Type: application/json

Close

Close the streaming session

Content-Type: application/json

AudioData

Synthesized speech audio data

Content-Type: application/octet-stream

Flushed

Flush confirmation

Content-Type: application/json

Warning

Warning message

Content-Type: application/json

TTSError

Error message

Content-Type: application/json

About AsyncAPI

The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.

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