Audio

Mirelo SFX v1.6 (Audio Extend)

Credit-based pricing.

Try Mirelo SFX v1.6 (Audio Extend) →Compare models

Output

audio

Inputs

Reference audio (required)

Example prompt

Upload a short sound effect — Mirelo v1.6 extends it forward in time, preserving timbre, rhythm, and tail naturally

Try this prompt →

LLM-ready

API & LLM schema

Exact request contract for this model. Agents can fetch it from /api/v1/models?id=mirelo-ai/sfx1.6/extend-audio.

POST/api/v1/generate14 fields · 2 required

Field	Type	Requirement	Contract
`model_id`	constant	Required	ArtEmotion model identifier.
`extra`	object	Optional	Model-specific settings may also be nested here.
`max_credits`	number	Optional	Reject before submission if the estimated list price exceeds this cap. · Range: 1–…
`webhook_url`	string	Optional	Format: uri
`webhook_secret`	string	Optional	Optional model input.
`folder_id`	string	Optional	Optional model input.
`prompt`	string	Optional	Optional model input.
`ambience`	boolean	Optional	When true, run the extend+loop path for seamless tiling. When false, run a one-shot extension. · Default: false
`double_output`	boolean	Optional	Only used when ambience=true: concatenate the loop with itself for a 2x-length output. · Default: false
`append_duration`	number	Optional	How many seconds to add after the prefix. Total output = prefix + append_duration, capped at 60s. · Default: 10 · Range: 1–57
`num_samples`	number	Optional	Number of variations to generate. · Default: 1 · Range: 1–4
`seed`	integer	Optional	Seed for generation. -1 or None for random. · Range: -1–…
`upload_audio_format`	string	Optional	Audio file format of the returned files. · Allowed: wav, mp3, aac, flac · Default: wav
`audio_url`	string	Required	Format: uri

Minimal request example

{
  "model_id": "mirelo-ai/sfx1.6/extend-audio",
  "audio_url": "https://example.com/audio"
}

Raw JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.artemotion.ai/api/v1/models?id=mirelo-ai%2Fsfx1.6%2Fextend-audio",
  "title": "Mirelo SFX v1.6 (Audio Extend) generation request",
  "description": "Request body accepted by POST /api/v1/generate for mirelo-ai/sfx1.6/extend-audio.",
  "type": "object",
  "properties": {
    "model_id": {
      "type": "string",
      "const": "mirelo-ai/sfx1.6/extend-audio",
      "description": "ArtEmotion model identifier."
    },
    "extra": {
      "type": "object",
      "additionalProperties": true,
      "description": "Model-specific settings may also be nested here."
    },
    "max_credits": {
      "type": "number",
      "minimum": 1,
      "description": "Reject before submission if the estimated list price exceeds this cap."
    },
    "webhook_url": {
      "type": "string",
      "format": "uri",
      "maxLength": 2048
    },
    "webhook_secret": {
      "type": "string",
      "maxLength": 512
    },
    "folder_id": {
      "type": "string"
    },
    "prompt": {
      "type": "string"
    },
    "ambience": {
      "title": "Ambience",
      "description": "When true, run the extend+loop path for seamless tiling. When false, run a one-shot extension.",
      "default": false,
      "type": "boolean"
    },
    "double_output": {
      "title": "Double Output",
      "description": "Only used when ambience=true: concatenate the loop with itself for a 2x-length output.",
      "default": false,
      "type": "boolean"
    },
    "append_duration": {
      "title": "Append Duration",
      "description": "How many seconds to add after the prefix. Total output = prefix + append_duration, capped at 60s.",
      "default": 10,
      "type": "number",
      "minimum": 1,
      "maximum": 57,
      "multipleOf": 1
    },
    "num_samples": {
      "title": "Variations",
      "description": "Number of variations to generate.",
      "default": 1,
      "type": "number",
      "minimum": 1,
      "maximum": 4,
      "multipleOf": 1
    },
    "seed": {
      "title": "Seed",
      "description": "Seed for generation. -1 or None for random.",
      "type": "integer",
      "minimum": -1
    },
    "upload_audio_format": {
      "title": "Format",
      "description": "Audio file format of the returned files.",
      "default": "wav",
      "type": "string",
      "enum": [
        "wav",
        "mp3",
        "aac",
        "flac"
      ]
    },
    "audio_url": {
      "type": "string",
      "format": "uri"
    }
  },
  "required": [
    "model_id",
    "audio_url"
  ],
  "additionalProperties": false
}

Browse schemas for every ArtEmotion model →

FAQ

How much does Mirelo SFX v1.6 (Audio Extend) cost on ArtEmotion?

Credit-based pricing. You pay in ArtEmotion credits — every plan and top-up converts USD to credits at a fixed rate.

Do I get my credits back if Mirelo SFX v1.6 (Audio Extend) fails?

Yes — failed generations are never charged. The credits are released back to your balance automatically.

Can I call Mirelo SFX v1.6 (Audio Extend) from the API?

Yes. Use POST /api/v1/generate with model_id: "mirelo-ai/sfx1.6/extend-audio". See the API reference for the full schema.

Where are my generations stored?

Every output is saved to your personal Library. You can export or delete everything any time from Privacy & deletion.

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