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Input types: TextOutput: Audio

MireloMirelo SFX 2.0 (Text to Audio)

Generate sound effects and soundscapes from a text prompt with Mirelo SFX 2.0.

Text to AudioSound Effects

Use it in code

Use it with AI

Overview

Alongside the unified model APIs, we expose compatibility APIs that take each vendor's original parameters exactly as the vendor defines them — nothing renamed, nothing reshaped on the way through.

That makes them the shortest path onto Picsart if you already work with the vendor directly: the request bodies you've already written keep working as they are. You keep their parameter names and defaults, and you get the vendor's full parameter set rather than the subset that is shared across every model.

The cost is that a request is written for one vendor — switching models later means rewriting it, and results come back in the vendor's own shape. When you'd rather write once and change models freely, use the unified API.

Make a request

Call the workflow with ai.apis.run() in TypeScript, or hit /workflows/{workflow}/execute directly — params is passed through untouched either way.

These endpoints are addressed by workflow name rather than model id: the one in this model's header, since one model runs as one workflow. Authentication is unchanged — your Picsart API key as a bearer token (see Authentication).

ts
import { createClient, ApiRunMode } from '@picsart/ai-sdk';

const ai = createClient({
  apiKey: process.env.PICSART_API_KEY,
  apiUrl: 'https://api.picsart.com',
});

// Calls the 'mirelo-ai/sfx2.0/text-to-audio' workflow directly — params are sent as-is.
const { result, usage } = await ai.apis.run('mirelo-ai/sfx2.0/text-to-audio', {
  prompt: "Heavy rain on a metal roof with distant thunder"
}, {
  mode: ApiRunMode.SYNC,
});

console.log(result); // workflow-specific output
console.log(usage?.credits); // amount charged, in $

Async (submit & poll)

This model can run longer than the sync limit (~20s). In TypeScript, ai.apis.run(…, { mode: ApiRunMode.ASYNC }) polls for you; over HTTP, submit and poll yourself.

ts
import { createClient, ApiRunMode } from '@picsart/ai-sdk';

const ai = createClient({
  apiKey: process.env.PICSART_API_KEY,
  apiUrl: 'https://api.picsart.com',
});

// mode: ASYNC submits the job and polls under the hood — you just await.
const { result } = await ai.apis.run('mirelo-ai/sfx2.0/text-to-audio', {
  prompt: "Heavy rain on a metal roof with distant thunder"
}, {
  mode: ApiRunMode.ASYNC,
});

console.log(result);

Parameters

8 parameters, sent inside params. These are the vendor's own names, so they line up one-for-one with the vendor's documentation. Required ones must be supplied; the rest fall back to their defaults.

ParameterTypeRequiredDefaultDetails
num_samples
Number of variations to generate. Billed per sample.
integerno2
1–4
duration
Seconds of sound to generate, up to the deployment's text-to-SFX maximum
numberno30
0.1–600
negative_prompt
Sounds to keep out of the result
stringno—
max 1000 chars
e.g. music, voices
upload_audio_bitrate_kbps
Bitrate in kbps for an mp3 or aac upload. mp3 is written at exactly this constant rate, one of 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320. aac takes 32 to 256 as a target the encoder may undershoot on mono or sparse audio. Unset keeps the default: mp3 at LAME V0 VBR, aac at a 256 kbps target. Refused with a lossless upload_audio_format.
integerno—
32–320
prompt
What the sound effect should sound like
stringyes—
1–2000 chars
e.g. Heavy rain on a metal roof with distant thunder
upload_audio_format
Audio format of each file
stringnowav
wavmp3aacflac
seed
Seed of the first sample; -1 or unset is random
integerno—
-1–9223372036854776000
options
Platform-specific options for safety checks and Picsart Drive integration.
objectno——
└safety_checks
Safety check configuration.
objectno——
└enabled
Enable or disable text safety checks. Defaults to true.
booleannotrue—
└drive
Picsart Drive storage options. When provided, the result will be saved to the user's Drive.
objectno——
└name
Filename to save the result as in Picsart Drive.
stringyes——
└attributes
Additional file metadata attributes.
objectno——
└folder
Destination folder in Picsart Drive.
objectno——

Response

Over HTTP the output arrives inside a status envelope, at response.result. ai.apis.run() unwraps that envelope for you and resolves to { result, usage } instead. Either way the result itself is the vendor's own shape.

json
{
  "result": {
    "seeds": [
      0
    ],
    "model": "sfx-2.0",
    "audio": [
      {
        "content_type": "audio/wav",
        "file_name": "generated_audio_1.wav",
        "url": "https://di3otfzjg1gxa.cloudfront.net/rain_metal_roof_output_1.wav"
      }
    ]
  }
}