TRTC
TRTC's native real-time TTS service with a curated premium voice library — no external account or API key required. It offers the lowest integration overhead and tightest latency within the TRTC pipeline. Best for teams that want to get up and running quickly with high-quality Chinese, English, and Cantonese voices out of the box.
Usage
To use TRTC Built-in TTS, pass the following JSON in the
TTSConfig field of the StartAIConversation API. No external account or API key is required:// json — TTSConfig{"TTSType": "flow","VoiceId": "v-female-R2s4N9qJ","Model": "flow_01_turbo","Speed": 1.0,"Volume": 1.0,"Pitch": 0,"Language": "zh"}
Parameter reference
Field | Type | Required | Description |
TTSType | String | Yes | Must be "flow". |
VoiceId | String | Yes | Premium or cloned voice ID. See voice library table below. |
Model | String | Yes | TTS model version. Current default: flow_01_turbo. |
Speed | Float | No | Speech rate. Range: [0.5–2.0]. Default: 1.0. |
Volume | Float | No | Volume level. Range: [0–10]. Default: 1.0. |
Pitch | Integer | No | Pitch adjustment. Range: [-12, 12]. Default: 0. |
Language | String | No | Language ID: zh (Chinese), en (English), yue (Cantonese). ISO 639-1. |
Voice Library
Chinese Voices
Voice Name | Voice ID | Language |
Commanding CEO - Male | v-male-Bk7vD3xP | zh |
Gentle Lady | v-female-R2s4N9qJ | zh |
Tsundere Girl | v-female-m1KpW7zE | zh |
Cutesy Girl | v-female-U8aT2yLf | zh |
Casual Man | v-male-s5NqE0rZ | zh |
Natural Man | v-male-W1tH9jVc | zh |
CS - Xiaomei (Sweet Girl) | female-kefu-xiaomei | zh |
CS - Xiaoxin (Soft Female) | female-kefu-xiaoxin | zh |
CS - Xiaoyue (Cheerful Female) | female-kefu-xiaoyue | zh |
CS - Xiaoxu (Professional Male) | male-kefu-xiaoxu | zh |
English (US) Voices
Voice Name | Voice ID | Language |
Articulate Narrator - Female | v-female-p9Xy7Q1L | en |
Analytical Presenter - Female | v-female-Z3x9LmQ2 | en |
Scholarly Lecturer - Male | v-male-A4b9KqP2 | en |
Expert Analyst - Male | v-male-r7K2pQ9L | en |
Calm Reviewer - Male | v-male-Q6p8ZxL3 | en |
Mindfulness Coach - Female | v-female-T3s8BqL9 | en |
Gentle Mentor - Male | v-male-P6q7LzD8 | en |
Cantonese Voices
Voice Name | Voice ID | Language |
Elegant Narrator - Female | v-female-k3P8sL0Q | yue |
Composed Narrator - Male | v-male-L4s7PqZ9 | yue |
