# Mirelo SFX2.0 · Text to Audio API

> ਟੈਕਸਟ ਵੇਰਵੇ ਤੋਂ ਧੁਨੀ ਪ੍ਰਭਾਵ, ਨਕਾਰਾਤਮਕ ਪ੍ਰੌਂਪਟ, ਮਿਆਦ ਅਤੇ ਕਈ ਨਮੂਨਿਆਂ ਨਾਲ

2000 ਅੱਖਰਾਂ ਤੱਕ ਦੇ `prompt` ਤੋਂ ਧੁਨੀ ਪ੍ਰਭਾਵ ਬਣਾਉਂਦਾ ਹੈ, ਅਤੇ ਆਵਾਜ਼ਾਂ ਨੂੰ ਹਟਾਉਣ ਲਈ `negative_prompt` ਵਰਤਦਾ ਹੈ। `duration` 0.1 ਤੋਂ 600 ਸਕਿੰਟ ਤੱਕ ਹੁੰਦੀ ਹੈ (ਪੂਰਵ-ਨਿਰਧਾਰਤ 30), ਅਤੇ `num_samples` 1 ਤੋਂ 4 ਵੈਰੀਐਂਟ ਬਣਾਉਂਦਾ ਹੈ, ਹਰ ਇੱਕ ਦੀ ਆਪਣੀ ਸੀਡ ਨਾਲ। ਆਉਟਪੁੱਟ ਫ਼ਾਰਮੈਟ `upload_audio_format` ਰਾਹੀਂ wav, mp3, aac ਜਾਂ flac ਹੁੰਦਾ ਹੈ, ਅਤੇ mp3 ਤੇ aac ਲਈ ਵਿਕਲਪਿਕ ਬਿਟਰੇਟ ਉਪਲਬਧ ਹੈ।

- Model id: `mirelo-ai/sfx2.0/text-to-audio`
- Made by: Mirelo AI
- Category: Audio
- Output: audio
- Price per second of your output audio: $0.01 / second of output audio (cheapest run $0.01 (10 API credits))
- Run: `POST https://api.doitong.ru/v1/run/mirelo-ai/sfx2.0/text-to-audio`
- Quote: `POST https://api.doitong.ru/v1/quote/mirelo-ai/sfx2.0/text-to-audio`
- Docs page: https://doitong.com/pa/developers/models/mirelo-ai/sfx2.0/text-to-audio

## Pricing

Price: **$0.01 / second of output audio**. Price per second of your output audio: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

The full example input below costs $0.60 = 600 API credits (60 s output audio × $0.01).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/mirelo-ai/sfx2.0/text-to-audio` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | 1 – 2000 characters | ਲੋੜੀਂਦੇ ਧੁਨੀ ਪ੍ਰਭਾਵ ਦਾ ਵਰਣਨ। |
| `negative_prompt` |  | string \| null | no |  | ≤ 1000 characters | ਆਉਟਪੁੱਟ ਵਿੱਚੋਂ ਬਾਹਰ ਰੱਖਣ ਵਾਲੀਆਂ ਧੁਨੀਆਂ। |
| `duration` |  | number | no | `30` | 0.1 – 600 | ਬੇਨਤੀ ਕੀਤੀ ਧੁਨੀ ਦੀ ਲੰਬਾਈ, ਸਕਿੰਟਾਂ ਵਿੱਚ ਮਾਪੀ ਗਈ; ਇਹ text-to-SFX ਲਈ deployment-ਵਿਸ਼ੇਸ਼ ਵੱਧ ਤੋਂ ਵੱਧ ਸੀਮਾ ਦੇ ਅੰਦਰ ਹੋਣੀ ਚਾਹੀਦੀ ਹੈ। |
| `seed` |  | integer \| null | no |  | -1 – 9,223,372,036,854,776,000 | ਸ਼ੁਰੂਆਤੀ sample ਦਾ seed; -1 ਲਈ ਜਾਂ ਛੱਡੇ ਜਾਣ 'ਤੇ ਬੇਤਰਤੀਬ seed ਵਰਤਿਆ ਜਾਂਦਾ ਹੈ। |
| `num_samples` |  | integer | no | `2` | 1 – 4 | ਇੱਕੋ batched forward pass ਵਿੱਚ ਸਿਰਜਣਾ ਲਈ samples ਦੀ ਗਿਣਤੀ। |
| `upload_audio_format` |  | enum (string) | no | `wav` | `wav`, `mp3`, `aac`, `flac` | ਹਰੇਕ ਆਡੀਓ ਫ਼ਾਈਲ ਲਈ ਵਰਤਿਆ ਜਾਣ ਵਾਲਾ ਫਾਰਮੈਟ। |
| `upload_audio_bitrate_kbps` |  | integer \| null | no |  | 32 – 320 | kbps ਵਿੱਚ ਅੱਪਲੋਡ bitrate override, upload_audio_format lossless ਹੋਣ 'ਤੇ ਰੱਦ ਕੀਤਾ ਜਾਂਦਾ ਹੈ; ਇਸਨੂੰ ਅਣਸੈੱਟ ਛੱਡਣ 'ਤੇ mp3 ਲਈ LAME V0 VBR ਜਾਂ aac ਲਈ 256 kbps ਟਾਰਗੇਟ ਬਰਕਰਾਰ ਰਹਿੰਦਾ ਹੈ। mp3 ਲਈ 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 ਵਿੱਚੋਂ ਸਹੀ constant rate ਚੁਣੋ। aac ਲਈ 32 ਤੋਂ 256 ਤੱਕ ਦੇ ਮੁੱਲ guaranteed rate ਦੀ ਬਜਾਏ encoder target ਦੱਸਦੇ ਹਨ, ਇਸ ਲਈ ਮੋਨੋ ਜਾਂ sparse ਆਡੀਓ ਇਸ ਤੋਂ ਹੇਠਾਂ ਜਾ ਸਕਦਾ ਹੈ। |

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/mirelo-ai/sfx2.0/text-to-audio?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.ru/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/mirelo-ai/sfx2.0/text-to-audio?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/mirelo-ai/sfx2.0/text-to-audio", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.ru/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "mirelo-ai/sfx2.0/text-to-audio",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "mirelo-ai/sfx2.0/text-to-audio",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 600,
    "usd": "0.60",
    "charged": 600,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "output": {
    "model": "sfx-2.0",
    "audio": [
      {
        "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
        "content_type": "audio/mpeg",
        "file_name": "0-output.mp3",
        "file_size": 1843200
      }
    ],
    "seeds": [
      42
    ]
  },
  "outputs": [
    {
      "type": "audio",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_size": 1843200,
      "duration": 12,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `model` | string | ਆਉਟਪੁੱਟ ਤਿਆਰ ਕਰਨ ਲਈ ਵਰਤੀ ਗਈ SFX ਮਾਡਲ ਰਿਲੀਜ਼। |
| `audio` | array of object {url, content_type, file_name, file_size} | ਸਿਰਜੇ ਗਏ ਧੁਨੀ ਪ੍ਰਭਾਵ, ਹਰ sample ਲਈ ਇੱਕ ਨਤੀਜੇ ਸਮੇਤ। |
| `seeds` | array of integer | samples ਨਾਲ ਸੰਬੰਧਿਤ seeds, ਉਨ੍ਹਾਂ ਦਾ ਕ੍ਰਮ ਬਰਕਰਾਰ ਰੱਖਦੇ ਹੋਏ। |

## Related models

- [Mirelo SFX2.0 · Video to Video](https://doitong.com/developers/models/mirelo-ai/sfx2.0/video-to-video.md) (`mirelo-ai/sfx2.0/video-to-video`): $0.01 / second of output audio
- [Mirelo SFX2.0 · Video to Audio](https://doitong.com/developers/models/mirelo-ai/sfx2.0/video-to-audio.md) (`mirelo-ai/sfx2.0/video-to-audio`): $0.01 / second of output audio
- [MMAudio V2](https://doitong.com/developers/models/mmaudio-v2.md) (`mmaudio-v2`): $0.001 / second
- [DeepFilterNet 3](https://doitong.com/developers/models/deepfilternet3.md) (`deepfilternet3`): $0.001 / second of input audio
- [Demucs](https://doitong.com/developers/models/demucs.md) (`demucs`): $0.0007 / second of input audio
- [ElevenLabs Audio Isolation](https://doitong.com/developers/models/elevenlabs/audio-isolation.md) (`elevenlabs/audio-isolation`): $0.10 / minute of input file
- [Elevenlabs Sound Effects V2](https://doitong.com/developers/models/elevenlabs/sound-effects/v2.md) (`elevenlabs/sound-effects/v2`): $0.002 / second
- [ElevenLabs Voice Changer](https://doitong.com/developers/models/elevenlabs/voice-changer.md) (`elevenlabs/voice-changer`): $0.30 / minute of input audio

## Links

- HTML page: https://doitong.com/developers/models/mirelo-ai/sfx2.0/text-to-audio
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=mirelo-ai/sfx2.0/text-to-audio
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/mirelo-ai/sfx2.0/text-to-audio