音声生成APIリファレンス

curl --request POST \
  "https://$SFM_WORKSPACE_ID.cn-beijing.maas.aliyuncs.com/api/v1/services/audio/tts/SpeechSynthesizer" \
  --max-time 300 \
  --header "Authorization: Bearer $DASHSCOPE_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "qwen-audio-3.1-tts-next",
    "input": {
      "text_prompt": "A woman clearly says: Hello, welcome.",
      "format": "wav",
      "sample_rate": 48000,
      "channels": 2
    }
  }'

{
  "request_id": "example-request-id",
  "output": {
    "finish_reason": "stop",
    "audio": {
      "data": "",
      "url": "https://example.com/generated.wav",
      "id": "audio_example-request-id",
      "expires_at": 1789616932,
      "duration": 1.12
    }
  },
  "usage": {
    "duration": 1
  }
}

import base64
import os
from pathlib import Path

import requests

reference1 = base64.b64encode(Path("reference1.wav").read_bytes()).decode("ascii")
reference2 = base64.b64encode(Path("reference2.wav").read_bytes()).decode("ascii")
workspace_id = os.environ["SFM_WORKSPACE_ID"]
endpoint = (
    f"https://{workspace_id}.cn-beijing.maas.aliyuncs.com"
    "/api/v1/services/audio/tts/SpeechSynthesizer"
)
response = requests.post(
    endpoint,
    headers={
        "Authorization": f"Bearer {os.environ['DASHSCOPE_API_KEY']}",
        "Content-Type": "application/json",
    },
    json={
        "model": "qwen-audio-3.1-tts-next",
        "input": {
            "text_prompt": "@voice1 says: It is sunny today. Shall we take a walk? @voice2 replies: Sure, let us go to the park.",
            "references": [
                {"audio_data": f"data:audio/wav;base64,{reference1}"},
                {"audio_data": f"data:audio/wav;base64,{reference2}"}
            ],
            "format": "wav",
        },
    },
    timeout=300,
)
response.raise_for_status()
result = response.json()
audio_response = requests.get(result["output"]["audio"]["url"], timeout=60)
audio_response.raise_for_status()
Path("output.wav").write_bytes(audio_response.content)

{
  "request_id": "example-request-id",
  "code": "CLIENT_ERROR",
  "message": "text_prompt exceeds the maximum length of 3000 characters."
}