---
title: "Changes to Stream speech synthesis with low latency"
method: POST
path: "/api/v1/tts/stream"
---

# Changes to Stream speech synthesis with low latency

`POST /api/v1/tts/stream`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 13 revisions.

- **2026-11-04** `9518b716e16d`: 1 info
- **2026-09-16** `98838c7c0e72`: 6 info
- **2026-09-08** `633d63e717b8`: 12 breaking, 30 info

## Changes

- **2026-11-04** `9518b716e16d`: 1 info
  - added the new optional request property `applyPronunciation`
- **2026-09-16** `98838c7c0e72`: 6 info
  - added the optional property `retryAfterSeconds` to the response with the `400` status
  - added the optional property `retryAfterSeconds` to the response with the `401` status
  - added the optional property `retryAfterSeconds` to the response with the `403` status
  - added the optional property `retryAfterSeconds` to the response with the `429` status
  - added the optional property `retryAfterSeconds` to the response with the `502` status
  - added the optional property `retryAfterSeconds` to the response with the `503` status
- **2026-09-08** `633d63e717b8`: 12 breaking, 30 info
  - the response property `statusCode` became optional for the status `400`
  - the response property `statusCode` became optional for the status `401`
  - the response property `statusCode` became optional for the status `403`
  - the response property `statusCode` became optional for the status `429`
  - the response property `statusCode` became optional for the status `502`
  - the response property `statusCode` became optional for the status `503`
  - response property `message` list-of-types was widened by adding types `array` to media type `application/json` of response `400`
  - response property `message` list-of-types was widened by adding types `array` to media type `application/json` of response `401`
  - response property `message` list-of-types was widened by adding types `array` to media type `application/json` of response `403`
  - response property `message` list-of-types was widened by adding types `array` to media type `application/json` of response `429`
  - response property `message` list-of-types was widened by adding types `array` to media type `application/json` of response `502`
  - response property `message` list-of-types was widened by adding types `array` to media type `application/json` of response `503`
  - added the optional property `code` to the response with the `400` status
  - added the optional property `code` to the response with the `401` status
  - added the optional property `code` to the response with the `403` status
  - added the optional property `code` to the response with the `429` status
  - added the optional property `code` to the response with the `502` status
  - added the optional property `code` to the response with the `503` status
  - added the optional property `error` to the response with the `400` status
  - added the optional property `error` to the response with the `401` status
  - added the optional property `error` to the response with the `403` status
  - added the optional property `error` to the response with the `429` status
  - added the optional property `error` to the response with the `502` status
  - added the optional property `error` to the response with the `503` status
  - added the optional property `remaining` to the response with the `400` status
  - added the optional property `remaining` to the response with the `401` status
  - added the optional property `remaining` to the response with the `403` status
  - added the optional property `remaining` to the response with the `429` status
  - added the optional property `remaining` to the response with the `502` status
  - added the optional property `remaining` to the response with the `503` status
  - added the optional property `required` to the response with the `400` status
  - added the optional property `required` to the response with the `401` status
  - added the optional property `required` to the response with the `403` status
  - added the optional property `required` to the response with the `429` status
  - added the optional property `required` to the response with the `502` status
  - added the optional property `required` to the response with the `503` status
  - added the optional property `resetAt` to the response with the `400` status
  - added the optional property `resetAt` to the response with the `401` status
  - added the optional property `resetAt` to the response with the `403` status
  - added the optional property `resetAt` to the response with the `429` status
  - …2 more

---

[Operation](https://skmtc.dev/vieneu/apis/vieneu-api/docs/api/v1/tts/stream/post.md) - [API](https://skmtc.dev/vieneu/apis/vieneu-api.md) - [Page](https://skmtc.dev/vieneu/apis/vieneu-api/changes/api/v1/tts/stream/post)