Kwaivgi Kling Text To Audio

Kwaivgi Kling Text To Audio

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Kling Text-to-Audio turns text prompts into custom sound effects for videos, games, and multimedia using KlingAI’s audio model. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Generate cinematic sound effects directly from text. Describe the scene or action, and Kling creates matching foley, ambience, risers, booms, whooshes, and textures—perfect for trailers, shorts, games, podcasts, and multimedia projects.


Key Features

  • Text-to-audio SFX with scene-aware textures and timing
  • Wide palette: weather, impacts, machinery, footsteps, creatures, atmospheres
  • Clean renders ready for layering and post-mix
  • Fast iteration for cue sheets and temp tracks

Parameters

  • prompt

Describe what you want to hear. Example: Cold winter night with howling wind across barren fields; deep gusts; distant creaks; approaching snowstorm tension.

  • duration

Length of the generated SFX bed in seconds.


How to Use

  1. Write a concise, concrete prompt naming sources, space, and mood.
  2. Set the duration to match your shot or loop length.
  3. Run and download the audio. Trim or loop in your DAW as needed.

Output

  • Single SFX track aligned to your requested duration.
  • Format follows platform defaults with a downloadable URL.

Pricing

  • Just $0.035 per run!!!

Prompting Tips

  • Call out materials and distance: metal gate clang close, wood door thud mid, crowd murmur far.
  • Add pacing: slow build, big hit at 0:08, decay to silence.
  • For loops, keep the ending sparse or symmetrical for seamless repeats.
  • Generate stems by running separate prompts for ambience, impacts, and ear-candy, then mix.

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'
{
  "prompt": "A cinematic ocean wave at sunrise, highly detailed",
  "duration": 10
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/kwaivgi/kling-text-to-audio" \
  -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

ParameterTypeRequiredDefaultRangeDescription
promptstringYes-Text prompt for audio generation, maximum 200 characters
durationnumberYes103 ~ 10Duration of the generated audio in seconds, range: 3.0 to 10.0 seconds, supports one decimal place

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayOutput values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

ParameterTypeRequiredDefaultDescription
idstringYes-Task ID

Result Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
dataobjectThe prediction data object containing all details
data.idstringUnique identifier for the prediction
data.modelstringModel ID used for the prediction
data.outputsarray<string | object>Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model.
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to poll for the prediction result
data.statusstringStatus: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds
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