Hunyuan Video Foley

Hunyuan Video Foley

Playground

HunyuanVideo-Foley generates realistic Foley and ambient audio from an uploaded video using a text prompt to describe desired sounds. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

What is HunyuanVideo-Foley?

HunyuanVideo-Foley is Tencent Hunyuan’s video-to-audio model that synthesizes realistic Foley and ambient sound directly from video. It aligns on-screen actions and scene context to produce timing-accurate, high-quality audio tracks.

Why this?

Traditional audio generators struggle with generalization, semantic alignment, and clean quality. HunyuanVideo-Foley addresses these pain points head-on.

What it can do

• Multi-scene synchronization – High-quality audio aligned to complex, fast-cut visuals.
• Multi-modal balance – Blends visual cues with optional text prompts for intent-aware sound.
• 48 kHz hi-fi output – Professional clarity with low noise and artifacts.
• SOTA performance – Leading results in fidelity, sync, and semantic alignment benchmarks.

From short clips to cinematic cuts

Whether you’re polishing a social clip or finishing an animated short, HunyuanVideo-Foley can help with you.

Example (ASMR):

• Silent video description: close-up of hands slicing fresh kiwi on a wooden board; crisp macro textures; soft natural light.
• Text prompt: Generate realistic kiwi cutting and peeling sounds; gentle tapping; calm ASMR ambience.

Designed for

• Post & Studios – Fast Foley passes for animatics, rough cuts, and indie films.
• Creators & Social Teams – Auto-sound shorts/reels with consistent timing.
• Education & Prototyping – Demonstrate AV alignment or test sound design ideas quickly.

How to Use (HunyuanVideo-Foley)

1. Upload video (required) – Add the silent (or low-sound) clip you want to sound.
2. Write prompt (optional) – Briefly describe the mood or key sounds, e.g.

• Rainy street ambience, soft footsteps, distant cars.
• Kitchen ASMR: chopping vegetables, sizzling pan.

3. Set seed – use a fixed number to reproduce the same result; change it for variants.
4. Run – Click Run (the button shows the cost).
5. Review & iterate – If timing or tone isn’t right, tweak the prompt or seed and run again.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
  "seed": -1
}
JSON
)

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

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(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' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  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

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters