# Sam Audio · Span Separate API

> בודזשעט אויס אַ קלאַנג פֿון אַודיאָ מיט צײַט־אָפּשניטן וואָס איר גיט, מיט אַן אָפּציאָנעלן טעקסט־הינווייז

אַנשטאָט זיך צו פֿאַרלאָזן נאָר אויף טעקסט, שיקט מען `spans` וואָס צייכענען ווען דער ציל־קלאַנג קומט פֿאָר אין `audio_url`. אַ `prompt` איז אָפּציאָנאַל, אָבער העלפֿט אידענטיפֿיצירן דעם קלאַנג־טיפּ. `trim_to_span` קען שנײַדן דעם רעזולטאַט צו דער span־ריי, און `use_sound_activity_ranking` דערלויבט ריראַנקינג אָן אַ פּראָמפּט. גיט צוריק `target` און `residual` אַודיאָ אין wav אָדער mp3.

- Model id: `sam-audio/span-separate`
- Made by: Meta
- Category: Audio
- Output: json
- Price per 30 seconds of your input audio: from $0.05 / 30 seconds of input audio (cheapest run $0.05 (50 API credits))
- Run: `POST https://api.doitong.com/v1/run/sam-audio/span-separate`
- Quote: `POST https://api.doitong.com/v1/quote/sam-audio/span-separate`
- Docs page: https://doitong.com/yi/developers/models/sam-audio/span-separate

## Pricing

Price: **from $0.05 / 30 seconds of input audio** (the lowest tier; the quote prices your exact input). Price per 30 seconds of your input 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 $0.05 = 50 API credits (1 × 30 s input audio × $0.05).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/sam-audio/span-separate` 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

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 |  |  | אַודיאָ־פֿײַל־URL פֿאַר באַאַרבעטונג. |
| `prompt` |  | string \| null | no |  |  | הילף צו דערקענען דעם קלאַנג פֿאַרן עקסטראַקטירן אַודיאָ פֿונעם אָפּשניט. אַ טעקסט־באַשרײַבונג פֿונעם קלאַנג צו איזאָלירן איז רעקאָמענדירט, אָבער נישט נייטיק. |
| `spans` |  | array of object {start, end, include} | yes |  |  | צײַט־אינטערוואַלן וואָס אַנטהאַלטן דעם ציל־קלאַנג צו איזאָלירן. |
| `spans[].start` |  | number | yes |  | ≥ 0 | צײַטשטעמפּל פֿון אָפּשניט־אָנהייב, געמאָסטן אין סעקונדעס. |
| `spans[].end` |  | number | yes |  | ≥ 0 | צײַטשטעמפּל פֿון אָפּשניט־סוף, געמאָסטן אין סעקונדעס. |
| `spans[].include` |  | boolean | no | `true` |  | אַרײַננעמען קלאַנגען אינעם אָפּשניט: True נעמט זיי אַרײַן, בשעת False שליסט זיי אויס. |
| `reranking_candidates` |  | integer | no | `1` | 1 – 7 | צאָל קאַנדידאַטן גענוצט נאָר מיט אַ טעקסט־פּראָמפּט: אַזוי פֿיל קאַנדידאַטן ווערן געשאַפֿן און ראַנגירט. אָפּטיילונג נאָר לויט אַן אָפּשניט איגנאָרירט די באַשטעטיקונג. |
| `acceleration` |  | enum (string) | no | `balanced` | `fast`, `balanced`, `quality` | אַקסעלעראַציע־ניוואָ געווענדט צו פּראַסעסירונג. |
| `max_chunk_duration` |  | number | no | `60` | 10 – 60 | אַודיאָ־גרענעץ פֿאַר יעדן דורכגאַנג, געמאָסטן אין סעקונדעס; בײַם איבערשטײַגן ווערן גענוצט איבערלאַפּנדיקע שטיקלעך וואָס ווערן צונויפֿגעמישט. |
| `chunk_overlap` |  | number | no | `5` | 0 – 30 | לענג פֿון דער איבערלאַפּונג צווישן שטיקלעך, געמאָסטן אין סעקונדעס, פֿאַר אַ גלאַטן קלאַנג־איבערגאַנג. |
| `use_sound_activity_ranking` |  | boolean | no | `false` |  | ראַנגירונג־אָפּציע לויט קלאַנג־אַקטיוויטעט וואָס פֿאָדערט reranking_candidates > 1, און דערמעגלעכט עפֿעקטיווע נײַ־ראַנגירונג בײַ אָפּטיילונג נאָר לויט אַן אָפּשניט אָן אַ טעקסט־פּראָמפּט. קאַנדידאַטן באַקומען ציונים לויט ווי נאָענט זייערע דערקענטע נישט־שטילע געגנטן שטימען מיט די צוגעשטעלטע אָפּשניטן. |
| `trim_to_span` |  | boolean | no | `false` |  | ברירה פֿון רעזולטאַט־לענג צווישן נאָר דעם באַשטימטן אָפּשניט און דעם גאַנצן אַודיאָ. דאָס אַקטיווירן שנײַדט אָפּ לויט דעם צײַט־גרענעץ פֿונעם אָפּשניט; False האַלט די גאַנצע לענג און איזאָלירט דעם ציל־קלאַנג דורכאויס. |
| `output_format` |  | enum (string) | no | `wav` | `wav`, `mp3` | פֿאָרמאַט פֿאַר דעם גענערירטן אַודיאָ. |

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",
  "spans": [
    {
      "end": 10,
      "include": true,
      "start": 6
    }
  ]
}
```

A fuller example:

```json
{
  "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
  "spans": [
    {
      "end": 10,
      "include": true,
      "start": 6
    }
  ]
}
```

## 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.com/v1/run/sam-audio/span-separate?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",
    "spans": [
      {
        "end": 10,
        "include": true,
        "start": 6
      }
    ]
  }'

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

### JavaScript

```javascript
const API = "https://api.doitong.com/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/sam-audio/span-separate?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "spans": [
      {
        "end": 10,
        "include": true,
        "start": 6
      }
    ]
  }),
});
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.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "spans": [
        {
            "end": 10,
            "include": True,
            "start": 6,
        },
    ],
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/sam-audio/span-separate", 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.com/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": "sam-audio/span-separate",
      "input": {
        "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
        "spans": [
          {
            "end": 10,
            "include": true,
            "start": 6
          }
        ]
      },
      "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": "sam-audio/span-separate",
  "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": 50,
    "usd": "0.05",
    "charged": 50,
    "refunded": 0
  },
  "input": {
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "spans": [
      {
        "end": 10,
        "include": true,
        "start": 6
      }
    ]
  },
  "output": {
    "target": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "residual": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "duration": 5,
    "sample_rate": 48000
  },
  "outputs": [
    {
      "type": "file",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `target` | object {url, content_type, file_name, file_size} | ציל־קלאַנג עקסטראַקטירט באַזונדער. |
| `residual` | object {url, content_type, file_name, file_size} | אַודיאָ וואָס בלײַבט איבער אָן דעם ציל־קלאַנג. |
| `duration` | number | לענג פֿונעם רעזולטאַט־אַודיאָ, געמאָסטן אין סעקונדעס. |
| `sample_rate` | integer | סאַמפּלינג־פֿרעקווענץ אין Hz פֿאַר דעם רעזולטאַט־אַודיאָ. |

## Related models

- [Sam Audio · Separate](https://doitong.com/developers/models/sam-audio/separate.md) (`sam-audio/separate`): from $0.05 / 30 seconds of input audio
- [Sam Audio · Visual Separate](https://doitong.com/developers/models/sam-audio/visual-separate.md) (`sam-audio/visual-separate`): from $0.05 / 30 seconds of input video
- [MMAudio V2](https://doitong.com/developers/models/mmaudio-v2.md) (`mmaudio-v2`): $0.001 / second
- [Demucs](https://doitong.com/developers/models/demucs.md) (`demucs`): $0.0007 / second of input audio
- [DeepFilterNet 3](https://doitong.com/developers/models/deepfilternet3.md) (`deepfilternet3`): $0.001 / 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/sam-audio/span-separate
- 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=sam-audio/span-separate
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/sam-audio/span-separate