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Sonilo Video to SFX API

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Sonilo Video to SFX generates time-aligned sound effects for input videos, with optional prompts and segment controls for video sound design, ads, social content, games, and cinematic production workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

video-dubbing
Entrada

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Inactivo

$0.009por ejecución·~111 / $1

EjemplosVer todo

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README

Sonilo Video-to-SFX

Sonilo Video-to-SFX generates sound effects for an input video. Upload a video, optionally describe the overall sound direction, choose the output audio format, and generate a synchronized sound-effect track for the source video.

Why Choose This?

  • Video-to-sound-effect generation
    Generate sound effects based on the content, motion, and timing of an input video.

  • Optional prompt guidance
    Add an overall prompt to guide the sound style, environment, intensity, or realism.

  • Automatic video-aware timing
    The generated sound effect track follows the source video duration.

  • Multiple audio formats
    Export audio as wav, mp3, aac, or flac.

  • Standard audio output
    Generated audio is returned as a URL in the standard WaveSpeed prediction response.

Parameters

ParameterRequiredDescription
videoYesInput video. Supports mp4, mov, webm, m4v, and gif. Maximum duration: 180 seconds. Maximum file size: 300 MB.
promptNoOptional overall sound-effect prompt. Maximum length: 2,000 characters.
audio_formatNoOutput format: wav, mp3, aac, or flac. Default: aac.

How to Use

  1. Upload your video — Provide the input video that needs sound effects.
  2. Add prompt guidance optional — Describe the desired sound style, environment, mood, or intensity.
  3. Choose audio format — Select wav, mp3, aac, or flac.
  4. Submit — Generate the sound-effect track and retrieve the output URL.

Pricing

UnitPrice
Per second$0.009
Per minute$0.54

Best Use Cases

  • Video sound design — Generate sound effects that match the timing and action of a video.
  • Social video production — Add sound effects to short-form videos, ads, reels, and creative clips.
  • Game and animation previews — Create quick sound-effect tracks for animated scenes or gameplay-style clips.
  • Ambient audio generation — Add environmental sound such as rain, traffic, crowds, machinery, or room tone.
  • Creative prototyping — Quickly test sound directions before final audio production.

Pro Tips

  • Use a clear video with visible action for better sound timing.
  • Add a prompt when you want a specific sound style, environment, or intensity.
  • Mention the overall mood, such as realistic, cinematic, playful, tense, soft, or dramatic.
  • Use aac for general-purpose output, wav or flac for higher-quality workflows, and mp3 for broad compatibility.
  • Keep the video within 180 seconds for supported generation.
Nota:Este sitio web utiliza modelos de IA proporcionados por terceros.

v1 Video To Sfx API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/sonilo/v1/video-to-sfx with your input as JSON. The endpoint returns a prediction id. Start polling the result endpoint around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. On completed, read output values from data.outputs. Examples for v1 Video To Sfx below.

HTTP example
set -euo pipefail

: "${WAVESPEED_API_KEY:?Set WAVESPEED_API_KEY}"

REQUEST_BODY=$(cat <<'JSON'
{
    "video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
    "audio_format": "aac"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/sonilo/v1/video-to-sfx" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d "$REQUEST_BODY")

TASK=$(printf '%s' "$SUBMIT_RESPONSE" | jq 'if has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "$TASK" | jq -r '.id')
if [ -z "$PREDICTION_ID" ] || [ "$PREDICTION_ID" = "null" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "$TASK" | jq -r '.urls.get // empty')
if [ -z "$RESULT_URL" ]; then
  RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/$PREDICTION_ID/result"
fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body "$RESULT_URL" \
    -H "Authorization: Bearer $WAVESPEED_API_KEY")
  RESULT=$(printf '%s' "$RESPONSE" | jq 'if has("data") then .data else . end')
  STATUS=$(printf '%s' "$RESULT" | jq -r '.status')
  case "$STATUS" in
    completed) printf '%s\n' "$RESULT" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "$RESULT" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "$STATUS" >&2; exit 1 ;;
  esac
done
Node.js example
const submitUrl = "https://api.wavespeed.ai/api/v3/sonilo/v1/video-to-sfx";
const apiKey = process.env.WAVESPEED_API_KEY;
if (!apiKey) throw new Error('Set WAVESPEED_API_KEY');

async function requestJson(url, options = {}) {
  const response = await fetch(url, options);
  if (!response.ok) throw new Error(await response.text());
  return response.json();
}

// 1. Submit the prediction.
const body = await requestJson(submitUrl, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
        "video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
        "audio_format": "aac"
}),
});
const task = body.data ?? body;
if (!task.id) throw new Error("Submission response did not contain a prediction id");
const resultUrl = task.urls?.get ||
  `https://api.wavespeed.ai/api/v3/predictions/${task.id}/result`;

// 2. Poll until the prediction finishes.
while (true) {
  const resultBody = await requestJson(resultUrl, {
    headers: { "Authorization": `Bearer ${apiKey}` },
  });
  const result = resultBody.data ?? resultBody;
  if (result.status === "completed") {
    console.log(result.outputs);
    break;
  }
  if (["failed", "cancelled", "timeout"].includes(result.status)) throw new Error(JSON.stringify(result));
  if (!["created", "processing"].includes(result.status)) throw new Error("Unexpected status: " + result.status);
  await new Promise(resolve => setTimeout(resolve, 2000));
}
Python example
import json
import os
import time
from urllib.request import Request, urlopen

api_key = os.environ["WAVESPEED_API_KEY"]
headers = {"Authorization": f"Bearer {api_key}", "Content-Type": "application/json"}
payload = {
    "video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
    "audio_format": "aac"
}

def request_json(url, data=None):
    request = Request(url, data=data, headers=headers, method="POST" if data else "GET")
    with urlopen(request) as response:
        return json.load(response)

# 1. Submit the prediction.
body = request_json("https://api.wavespeed.ai/api/v3/sonilo/v1/video-to-sfx", json.dumps(payload).encode())
task = body.get("data", body)
if not task.get("id"):
    raise RuntimeError("Submission response did not contain a prediction id")
result_url = task.get("urls", {}).get("get") or f"https://api.wavespeed.ai/api/v3/predictions/{task['id']}/result"

# 2. Poll until the prediction finishes.
while True:
    result_body = request_json(result_url)
    result = result_body.get("data", result_body)
    status = result.get("status")
    if status == "completed":
        print(result.get("outputs", []))
        break
    if status in {"failed", "cancelled", "timeout"}:
        raise RuntimeError(result)
    if status not in {"created", "processing"}:
        raise RuntimeError(f"Unexpected status: {status}")
    time.sleep(2)

v1 Video To Sfx API — Frequently asked questions

What is the v1 Video To Sfx API?

v1 Video To Sfx is a Sonilo model for AI inference, exposed as a REST API on WaveSpeedAI. Sonilo Video to SFX generates time-aligned sound effects for input videos, with optional prompts and segment controls for video sound design, ads, social content, games, and cinematic production workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the v1 Video To Sfx API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID. Poll the result endpoint starting around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. The playground generates production-oriented Python, JavaScript, and cURL examples with timeouts, transient-error handling, and safe GET retries. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/sonilo/sonilo-v1-video-to-sfx.

How much does v1 Video To Sfx cost per run?

v1 Video To Sfx starts at $0.009 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does v1 Video To Sfx accept?

Key inputs: `prompt`, `video`, `audio_format`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/sonilo/sonilo-v1-video-to-sfx.

How do I get started with the v1 Video To Sfx API?

Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.

Can I use v1 Video To Sfx outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (Sonilo). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

Sonilo Video to SFX API | WaveSpeedAI