Speech translation API reference

Speech translation is configured with a translation object on realtime sessions or offline audio jobs. There is no pure text translation endpoint.

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Interface example

Start with a request.
Inspect every field.

Use a project API key from your server and follow the capability status documented on this page.

curl https://api.audelyr.ai/v1/realtime/sessions \
  -H "Authorization: Bearer $AUDELYR_API_KEY" \
  -H "Idempotency-Key: translation-demo-001" \
  -H "Content-Type: application/json" \
  -d '{"audio":{"format":"pcm_s16le","sample_rate_hz":16000,"channels":1},"translation":{"mode":"one_way","target_language":"zh-CN"}}'

Integration reference

Endpoints, parameters
and response contracts.

Production base URL: https://api.audelyr.ai. Keep API keys on your server. Every POST that creates work accepts an Idempotency-Key; reuse the same key only with the same request body.

POSThttps://api.audelyr.ai/v1/realtime/sessions

Enable speech translation for a realtime audio session.

Auth: Bearer aud_live_… (server only)

Headers: Idempotency-Key · Content-Type: application/json

audioobjectyesMono PCM16 or WebM Opus input.

translationobjectyesUse {mode: one_way, target_language} or {mode: bidirectional, languages: [a, b]}.

Response: 201 session credentials; WebSocket emits transcript.final and translation.final.

POSThttps://api.audelyr.ai/v1/transcriptions

Queue an offline audio transcription with optional speech translation.

Auth: Bearer aud_live_… (server only)

Headers: Idempotency-Key · Content-Type: application/json

audio_url|file_idstringyesExactly one HTTPS audio URL or file reference.

translationobjectnoOptional one-way target or bidirectional language pair for speech translation.

Response: 202 job; completed result includes transcript and translated_text.

Overview

Speech translation is configured with a translation object on realtime sessions or offline audio jobs. There is no pure text translation endpoint.

Before you begin

Create a project API key in the console and keep it on your server.

Request lifecycle

Realtime connections return events as audio is processed. HTTP and SSE endpoints return structured errors when a request cannot run.

Availability

Each guide states whether its capability is available today or still planned. Do not send production traffic to an endpoint marked unavailable.

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