# Workflow Utilities Impulse Response API

> dry/wet مکسنگ اور بلند آواز کی نارملائزیشن کے ساتھ آڈیو پر ریورب امپلس رسپانس لاگو کرتا ہے

ریورب یا کسی دوسرے کمرے یا ایفیکٹ پروفائل کو شامل کرنے کے لیے ایک آڈیو فائل کو امپلس رسپانس WAV کے ساتھ کنوولوشن کرتا ہے۔ `dry_level` اور `wet_level` (0 سے 1 تک) مکس طے کرتے ہیں۔ لاؤڈنس کے اہداف `loudness_i`، `loudness_lra` اور `loudness_tp` کے ذریعے ایڈجسٹ کیے جا سکتے ہیں۔ آؤٹ پٹ بٹ ریٹ 128k، 192k، 256k یا 320k ہو سکتا ہے۔

- Model id: `workflow-utilities/impulse-response`
- Made by: Utility
- Category: Audio
- Output: audio
- Charged by usage (up to $1.80 per run, typical $0.001; the rest of the hold is refunded): $0.001 / second of processing time (cheapest run $0.001 (1 API credit))
- Run: `POST https://api.doitong.ru/v1/run/workflow-utilities/impulse-response`
- Quote: `POST https://api.doitong.ru/v1/quote/workflow-utilities/impulse-response`
- Docs page: https://doitong.com/ur/developers/models/workflow-utilities/impulse-response

## Pricing

Price: **$0.001 / second of processing time**. Charged by actual usage at $0.001 / second of processing time: up to $1.80 per run (the quote gives the maximum for your input), the rest is refunded automatically after the run. A typical run costs $0.001.

The full example input below holds up to $1.80 = 1800 API credits (up to 1800 s of processing time × $0.001) when it starts; a typical run costs $0.001 (1 API credit).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). This model is charged by usage: `POST https://api.doitong.ru/v1/quote/workflow-utilities/impulse-response` with the same JSON body returns the most the run can cost for that input (`credits`, debited when the run starts); after the run you pay the usage the model reports and the rest is refunded automatically. An input whose maximum would exceed the per-run limit is refused with 422. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `audio_url` | `audio` | string (audio URL) | yes |  |  | پروسیس کی جانے والی بنیادی آڈیو فائل کا URL۔ |
| `impulse_response_url` |  | string | yes |  |  | reverb/effect profile متعین کرنے والی WAV impulse response فائل کا URL۔ |
| `dry_level` |  | number | no | `0.7` | 0 – 1 | mix کے اندر اصل (dry) سگنل کی سطح، 0.0 سے 1.0 تک۔ |
| `wet_level` |  | number | no | `0.3` | 0 – 1 | mix کے اندر پروسیس شدہ (wet) سگنل کی سطح، 0.0 سے 1.0 تک۔ |
| `loudness_i` |  | number | no | `-18` | -70 – 0 | Integrated loudness ہدف، LUFS میں؛ عام اقدار -24 سے -14 تک ہوتی ہیں۔ |
| `loudness_lra` |  | number | no | `8` | 1 – 50 | ہدف loudness range، LU میں؛ عام اقدار 5 سے 15 تک ہوتی ہیں۔ |
| `loudness_tp` |  | number | no | `-1.5` | -10 – 0 | True-peak ceiling، dBTP میں؛ عام اقدار -2 سے -1 تک ہوتی ہیں۔ |
| `output_bitrate` |  | enum (string) | no | `192k` | `128k`, `192k`, `256k`, `320k` | نتیجے میں بننے والی آڈیو کا bitrate۔ |

File parameters (`audio`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
  "impulse_response_url": "https://example.com/your-file.bin"
}
```

A fuller example:

```json
{
  "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
  "impulse_response_url": "https://example.com/your-file.bin"
}
```

## 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/workflow-utilities/impulse-response?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "impulse_response_url": "https://example.com/your-file.bin"
  }'

# 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/workflow-utilities/impulse-response?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "impulse_response_url": "https://example.com/your-file.bin"
  }),
});
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 = {
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "impulse_response_url": "https://example.com/your-file.bin",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/workflow-utilities/impulse-response", 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": "workflow-utilities/impulse-response",
      "input": {
        "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
        "impulse_response_url": "https://example.com/your-file.bin"
      },
      "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": "workflow-utilities/impulse-response",
  "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": 1800,
    "usd": "1.80",
    "charged": 1800,
    "refunded": 0
  },
  "input": {
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "impulse_response_url": "https://example.com/your-file.bin"
  },
  "output": {
    "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
    }
  },
  "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 |
|---|---|---|
| `audio` | object {url, content_type, file_name, file_size} | reverb کے ساتھ پروسیسنگ کے نتیجے میں بننے والی آڈیو فائل۔ |

## Related models

- [Workflow Utilities Extract Nth Frame](https://doitong.com/developers/models/workflow-utilities/extract-nth-frame.md) (`workflow-utilities/extract-nth-frame`): $0.001 / second of processing time
- [Workflow Utilities Pick Image By Index](https://doitong.com/developers/models/workflow-utilities/pick-image-by-index.md) (`workflow-utilities/pick-image-by-index`): $0.001 / run
- [Workflow Utilities Auto Subtitle](https://doitong.com/developers/models/workflow-utilities/auto-subtitle.md) (`workflow-utilities/auto-subtitle`): $0.03 / minute of input video
- [Workflow Utilities Blend Video](https://doitong.com/developers/models/workflow-utilities/blend-video.md) (`workflow-utilities/blend-video`): $0.001 / second of processing time
- [Workflow Utilities Interleave Video](https://doitong.com/developers/models/workflow-utilities/interleave-video.md) (`workflow-utilities/interleave-video`): $0.00017 / second of processing time
- [Workflow Utilities Reverse Video](https://doitong.com/developers/models/workflow-utilities/reverse-video.md) (`workflow-utilities/reverse-video`): $0.001 / second of processing time
- [Workflow Utilities Scale Video](https://doitong.com/developers/models/workflow-utilities/scale-video.md) (`workflow-utilities/scale-video`): $0.001 / second of processing time
- [Workflow Utilities Trim Video](https://doitong.com/developers/models/workflow-utilities/trim-video.md) (`workflow-utilities/trim-video`): $0.001 / second of processing time

## Links

- HTML page: https://doitong.com/developers/models/workflow-utilities/impulse-response
- 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=workflow-utilities/impulse-response
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/workflow-utilities/impulse-response