---
title: "Patch Voice Translation Config"
method: PATCH
path: "/api/threads/{thread_id}/voice-translation"
tags: ["threads", "threads"]
---

# Patch Voice Translation Config

`PATCH /api/threads/{thread_id}/voice-translation`

## Request

- Base URL: `https://api.dialogbrain.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.dialogbrain.com/api/threads/{thread_id}/voice-translation`
- Auth: none declared

Write per-thread voice-translation config (L1 in the plan's 3-tier model).

Workspace-gated. Validates against the closed enums above. Phase 3
will additionally enforce the `supports_translation_voice_out`
capability check when mode='voice' is set on a non-supporting channel.

## Path parameters

- `thread_id` integer, required

## Request body

- VoiceTranslationConfigRequest
  - `mode` string, required: off | silent | voice
  - `languages` string[], required: 1 entry = single-target; 2 entries = pair-flip
  - `speaker_overrides` object, nullable: Optional {telegram_user_id: lang} forced lock per speaker
  - `mt_provider` string
  - `tts_provider` string
  - `tts_voice` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/dialogbrain/apis/dialogbrain-v2-api-gateway.md) · [All operations](https://skmtc.dev/dialogbrain/apis/dialogbrain-v2-api-gateway/llms.txt) · [OpenAPI document](https://skmtc.dev/dialogbrain/apis/dialogbrain-v2-api-gateway/revisions/77bef09a9209?raw)