{"activeVersionTag":"latest","latestAvailableVersionTag":"latest","collection":{"info":{"_postman_id":"90fe79a8-8c90-4e6c-afec-89de2cce1039","name":"API V8","description":"- Use `/stream` for up to 1,000 characters, time-sensitive cases (e.g. chatbot).\n    \n- NEW: Use a websocket connection to `wss://api.v8.unrealspeech.com/streamWithTimestamps` to stream both audio and per-word timestamps.\n    \n- Use `/speech` for up to 3,000 characters, which returns publicly accessible URLs to the audio and timestamps.\n    \n- Use `/synthesisTasks` for up to 500,000 characters, which returns a task ID you can use to retrieve publicly accessible URLs to the audio and timestamps.\n    \n\n# Migrating from V6 or V7\n\n1. Change the endpoint from [<code>https://api.v6.unrealspeech.com</code>](https://api.v6.unrealspeech.com) to [<code>https://api.v8.unrealspeech.com</code>](https://api.v6.unrealspeech.com)\n    \n2. Update the `VoiceID`\n    \n3. Everything else is backward-compatible.\n    \n\n# Common Request Body Schema\n\nBelow parameters are used for `/stream`, `/speech` and `/synthesisTasks` endpoints.\n\n| **Property** | **Type** | **Required?** | **Default Value** | **Allowed Values** |\n| --- | --- | --- | --- | --- |\n| `VoiceId` | string | Required | N/A | `see below` |\n| `Bitrate` | string | Optional | `192k` | `16k` `32k` `48k` `64k` `128k` `192k` `256k` `320k` |\n| `Speed` | float | Optional | 0 | `-1.0` to `1.0` |\n| `Pitch` | float | Optional | 1.0 | `0.5` to `1.5` |\n\n## Parameter Details\n\n`VoiceId`\n\n- American Female: Autumn, Melody, Hannah, Emily, Ivy, Kaitlyn, Luna, Willow, Lauren, Sierra\n    \n- American Male: Noah, Jasper, Caleb, Ronan, Ethan, Daniel, Zane\n    \n- Chinese Female: Mei, Lian, Ting, Jing\n    \n- Chinese Male: Wei, Jian, Hao, Sheng\n    \n- Spanish Female: Lucía\n    \n- Spanish Male: Mateo, Javier\n    \n- French Female: Élodie\n    \n- Hindi Female: Ananya, Priya\n    \n- Hindi Male: Arjun, Rohan\n    \n- Italian Female: Giulia\n    \n- Italian Male: Luca\n    \n- Portuguese Female: Camila\n    \n- Portuguese Male: Thiago, Rafael\n    \n\n`Bitrate`: Defaults to `192k`. Use lower values for low bandwidth or to reduce the transferred file size. Use higher values for higher fidelity.\n\n`Speed`: Defaults to `0`. Examples:\n\n- `0.5`: makes the audio 50% faster. (i.e., 60-second audio becomes 42 seconds)\n    \n- `-0.5`: makes the audio 50% slower. (i.e., 60-second audio becomes 90 seconds.)\n    \n\n`Pitch`: Defaults to `1`. 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