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SUNO 允許我們上傳參考音頻進行二次創作，本文檔講解相關 API 的對接方法。 該 API 只有一個輸入參數，就是 audio_url，它是一個可以公開訪問的 CDN 地址，支持 mp3 後綴。 這裡我們輸入的 audio_url 是 https://cdn.acedata.cloud/suno_demo.mp3，是一個可以公開訪問的 CDN 地址。 
curl -X POST 'https://api.acedata.cloud/suno/upload' \
-H 'accept: application/json' \
-H 'authorization: Bearer {token}' \
-H 'content-type: application/json' \
-d '{
  "audio_url": "https://cdn.acedata.cloud/suno_demo.mp3"
}'
結果如下： 
{
    "success": true,
    "task_id": "058f8450-3df4-4f8b-8b64-ebc2e59ed3bc",
    "data": {
        "audio_id": "00135f7d-cda1-4d70-b007-779f07143586",
        "lyric": "[Intro]\nHa-ha-ha-ha-ha-ha\n[Verse 1]\nCandy skies are dripping blue\nStuck in world of chewed up glue\nThe sun's a lollipop melting slow\nDripped in sugar on the ground below\nOh-oh\n[Chorus]\nIt's a bubblegum catastrophe\nSticky mess can't set it free\nPop it once it multiplies\nCandy chaos in disguise\nIt's a bubblegum catastrophe\nSticky mess can't set it free\nPop it once it multiplies\nCandy chaos in disguise\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nCandy chaos in disguise\n[Verse 2]\nJellybean mountains crumble fast\nRainbows made of soda blast\nEvery step's a gummy bear trap\nMy sugar rush is taking a nap\nOh-oh\n[Bridge]\nChew it up (ha-ha-ha-ha)\nSpit it out (ha-ha-ha-ha)\nRound and round (ha-ha-ha-ha)\nWithout a doubt (ha-ha-ha-ha)\n[Chorus]\nIt's a bubblegum catastrophe\nSticky mess can't set it free\nPop it once it multiplies\nCandy chaos in disguise\nIt's a bubblegum catastrophe\nSticky mess can't set it free\nPop it once it multiplies\nCandy chaos in disguise\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\n[Outro]\nCotton candy clouds collapse\nChocolate rivers running laps\nEverywhere's a sugar flood\nMy shoes are drowning caramel\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nHa-ha-ha-ha-ha hey\nIt's a bubblegum catastrophe\nSticky mess can't set it free\nPop it once it multiplies\nCandy chaos in disguise\nIt's a bubblegum catastrophe\nSticky mess can't set it free\nPop it once it multiplies\nCandy chaos in disguise",
        "style": "Upbeat bubblegum pop track with a high-energy electronic production style. The song features a bright, processed female vocal with a youthful and energetic tone, often layered with harmonies and occasional pitch-shifted ad-libs. The instrumentation is dominated by bouncy, staccato synthesizer chords, a driving four-on-the-floor electronic drum beat with crisp claps on the backbeat, and a prominent, melodic bassline. The tempo is approximately 128 BPM in a major key, utilizing a standard pop chord progression of I-V-vi-IV. Production elements include heavy use of sidechain compression, vocal chops, and shimmering sound effects that contribute to a sugary, hyper-pop aesthetic. The structure follows a verse-chorus-verse-chorus-bridge-chorus format with a high-energy build-up leading into the explosive, hook-driven choruses.",
        "image_url": "https://cdn2.suno.ai/image_00135f7d-cda1-4d70-b007-779f07143586.jpeg",
        "image_large_url": "https://cdn2.suno.ai/image_large_00135f7d-cda1-4d70-b007-779f07143586.jpeg",
        "audio_url": "https://cdn1.suno.ai/00135f7d-cda1-4d70-b007-779f07143586.mp3",
        "title": "up-d6c3970d-6db1-41e3-b966-90539c93678a",
        "duration": 131.16
    }
}
可以看到，data 的 audio_id 字段就是上傳後的歌曲 ID。 有了歌曲 ID 之後，我們便可以使用 Suno Audios Generation API 來進行自定義歌曲生成了，比如說 action 傳入 upload_extend，同時 audio_id 傳入返回的歌曲 ID，就可以根據參考音頻生成新的歌曲了。