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片段替换

Flow Music 替换已生成音频中的某一段。按编辑指令重新生成 start_s 到 end_s 之间的片段

Flow Music 替换已生成音频中的某一段。按编辑指令重新生成 start_s 到 end_s 之间的片段

请求示例

bash curl --request POST \ --url https://api.openveer.com/v1/music/generations/replaceFlowMusic \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data '{ "model": "flowmusic", "clip_id": "abc123-def456", "start_s": 10, "end_s": 20, "instruction": "替换为钢琴版本" }'

```python
import requests

url = "https://api.openveer.com/v1/music/generations/replaceFlowMusic"

payload = {
"model": "flowmusic",
"clip_id": "abc123-def456",
"start_s": 10,
"end_s": 20,
"instruction": "替换为钢琴版本"
}

headers = {
"Authorization": "Bearer ",
"Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = "https://api.openveer.com/v1/music/generations/replaceFlowMusic";

const payload = {
model: "flowmusic",
clip_id: "abc123-def456",
start_s: 10,
end_s: 20,
instruction: "替换为钢琴版本"
};

const headers = {
"Authorization": "Bearer ",
"Content-Type": "application/json"
};

fetch(url, {
method: "POST",
headers: headers,
body: JSON.stringify(payload)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));
```

响应示例

json { "code": 200, "data": [ { "status": "submitted", "task_id": "task_01KWXVHGTG5JM33S8FG1K90YQ6" } ] }

json { "error": { "message": "end_s must be greater than start_s", "type": "invalid_request", "param": "", "code": "invalid_request" } }

json { "error": { "message": "余额不足", "type": "invalid_request", "param": "", "code": "quota_not_enough" } }

json { "error": { "message": "当前分组容量饱和，请稍后重试", "type": "rate_limit_error", "param": "", "code": "rate_limit_error" } }

认证

Authorization string
所有接口均需要使用 Bearer Token 进行认证 获取 API Key： 访问 [API Key 管理页面](https://openveer.com) 获取您的 API Key 使用时在请求头中添加： ``` Authorization: Bearer YOUR_API_KEY ```

请求参数

model string
模型名称，**固定传 `"flowmusic"`**（大小写不敏感）
clip_id string
源音乐 clip\_id，来自已成功任务的 `result.music[].clip_id`
start_s number
替换开始时间（秒）
end_s number
替换结束时间（秒）
警告
`end_s` 必须大于 `start_s`，且不能超过源 clip 时长。
instruction string
替换片段的编辑指令 示例：`"替换为钢琴版本"`
title string
替换后音乐标题
seed integer
随机种子，用于复现或控制生成结果

响应

code integer
响应状态码，成功时为 200
data array
返回数据数组 任务状态，初始提交时为 `submitted`
task_id string
任务唯一标识符，用于查询任务状态和结果

使用场景

场景 1：把 10-20 秒替换为钢琴版本

{
  "model": "flowmusic",
  "clip_id": "abc123-def456",
  "start_s": 10,
  "end_s": 20,
  "instruction": "替换为钢琴版本"
}
注意
**查询任务结果** 片段替换为异步任务，提交后会返回 `task_id`。使用 [获取任务状态](./query) 接口查询生成进度和结果。替换产物是**新的** `clip_id`（整首歌重新输出，其中指定区间已被替换），后续操作请使用新 clip\_id。

任务完成结果示例

查询返回示例（GET /v1/music/tasks/{task_id}）：

{
  "code": 200,
  "data": {
    "id": "task_01KWXVHGTG5JM33S8FG1K90YQ6",
    "status": "completed",
    "progress": 100,
    "created": 1783413392,
    "completed": 1783413454,
    "actual_time": 62,
    "cost": 0.048,
    "credits_cost": 0.48,
    "result": {
      "music": [
        {
          "clip_id": "9508d1fe-633e-464b-8a40-c6368e5464fa",
          "title": "Untitled (Replaced)",
          "duration_seconds": "181.58933333",
          "create_time": "2026-07-07T08:37:13.864452Z",
          "lyrics": "[Verse 1]\nWaking up to the morning light,\n...",
          "lyrics_id": "c302d603-81b6-552f-8122-e512928d6aa1",
          "lyrics_timing_markers": [[10, 12], [71, 15]],
          "audio_url": "https://cdn.apimart.ai/audio/flowmusic_9508d1fe.m4a",
          "wav_url": "https://cdn.apimart.ai/audio/flowmusic_9508d1fe.wav",
          "image_url": "https://cdn.apimart.ai/image/flowmusic_9508d1fe_cover.jpg"
        }
      ]
    }
  }
}