WaveSpeedAI APIWavespeed AIAce Step Audio To Audio

Ace Step Audio To Audio

Ace Step Audio To Audio

Playground

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ACE-Step Audio-to-Audio model generates music variations from existing audio files. It can remix existing tracks or edit lyrics while preserving the original audio’s characteristics. Choose between ‘remix’ mode to transform the style while keeping structure, or ‘lyrics’ mode to modify the vocal content.

Features

ACE-Step: Audio to Audio

ACE-Step Audio-to-Audio model generates music variations from existing audio files.

Key Features

  1. Remix Mode: Transform the musical style while preserving structural elements.
  2. Lyrics Mode: Edit and modify vocal content while keeping the music intact.
  3. Style Control: Use genre tags to guide the output style.
  4. High Quality: Maintains fine-grained acoustic details from the original.

Use Cases

  • Remix existing tracks with different genres
  • Edit lyrics while keeping the instrumental backing
  • Create variations of a song for A/B testing
  • Adapt music for different contexts

Pricing

$0.0002 per second of generated audio.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/ace-step/audio-to-audio" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "edit_mode": "remix",
    "original_lyrics": "",
    "lyrics": "",
    "seed": -1
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

ParameterTypeRequiredDefaultRangeDescription
audiostringYes--Audio file to transcribe. Provide an HTTPS URL or upload a file (MP3, WAV, FLAC up to 60 minutes).
original_tagsstringYes--Original genre tags of the audio file.
tagsstringYes--Comma-separated list of genre tags to control the style.
edit_modestringNoremixlyrics, remixEdit mode: lyrics or remix.
original_lyricsstringNo--Original lyrics of the audio.
lyricsstringNo--New lyrics for generation.
seedintegerNo-1-1 ~ 2147483647The random seed for reproducibility.

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayArray of URLs to the generated content (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.has_nsfw_contentsarrayArray of boolean values indicating NSFW detection for each output
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

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