Sound effects
SFX v3 Troubleshooting: Missing Sounds, Noise & API Errors
Fix missing models, sound events, unwanted music, clipping and download errors. Distinguish this platform’s task responses from the direct ElevenLabs API.
First identify the stage that failed: model selection, request acceptance, generation, download or use in an editor. Then check which service handled the request. This website returns JSON task responses; ElevenLabs’ direct sound-generation endpoint returns audio on success. Mixing those contracts can look like a broken download or an invalid API key.
Choosing a model and troubleshooting the model list
Choose a model suited to your task in the audio workspace, enter a prompt, then review settings and the credit estimate. A prefilled sound prompt does not change the selected model. For API integration, use a model slug returned by the audio catalog; it may differ from an official ElevenLabs model ID.
If the list fails to load, refresh the page. If the problem persists, contact support with the time and error message. Do not repeatedly submit generation requests to diagnose a catalog-loading problem.
The request completed, but part of the scene is missing
Write down the events you expected, then listen for each. Shorten the prompt, make the order explicit, or generate a missing event separately. For example, replace a long visual scene description with:
One drawer slides open, then a small metal object is placed on the wooden surface, followed by the drawer closing.
This is a suggested test prompt, not a verified fix. If independent timing matters, create three assets and arrange them in an editor. See the prompt guide for revision examples.
There is unwanted music, speech or excessive room sound
Check the selected model first. A music or speech model can interpret the same text differently from an effects model. For a compatible effects model, reduce the prompt to a single source and action. Try a sparse environment and remove terms that imply a soundtrack.
For too much room reflection, compare a “close and dry” description with the original. Such wording is a request, not a guaranteed removal filter. If a good candidate still needs cleanup, edit a copy rather than overwriting the source.
The sound is noisy, harsh or clipped
Listen at a moderate level and compare the original download with playback in the editor. Check whether distortion appears only after several tracks combine. If so, adjust the mix levels. If the source itself is distorted, simply lowering playback volume does not restore the missing waveform detail.
Try a simpler description or a different candidate. Do not assume a different file extension, a larger sample rate or conversion to WAV repairs the source. Avoid presenting an untested processing step as a guaranteed correction.
A loop has a gap or obvious repetition
Check whether the selected model actually exposes looping. Audition the join, not just the middle of the file. A cut-off tail, level jump or distinctive repeating detail may require different edit points, a crossfade or a more stable source. See the ambience guide.
The request stays queued or processing
Save the returned task ID and poll that task. A queued or processing state is not a new generation request. Use a bounded wait with increasing intervals instead of posting another request each time the result is not ready.
If a submission times out before you receive an ID, check your existing creations or request records before resubmitting. This website does not document an idempotency key for generation; repeating a submission can create another separately charged task. For a persistent delay, include the task ID in a support ticket.
Match the error to the correct API
| Symptom | What to check | Next step |
|---|---|---|
| This site returns Unauthorized | Use a valid user API key from this account with Bearer authentication. | Check the host and key source; an invalid explicit key does not fall back to a browser session. |
| Unsupported model | The model must be a slug from the current catalog. | Do not paste an ElevenLabs model ID into the platform model field unless the catalog actually uses it. |
| Invalid quote request or unsupported parameter | Check request shape, model field definitions and value types. | Remove undeclared fields; use the same supported input for quoting and generation. |
| Insufficient credits | Compare the estimate with this account’s balance. | Check pricing; provider credits are separate. |
| HTTP 429 or service busy | A request or provider limit may be involved. | Back off; do not retry in a tight loop or promise a fixed completion time. |
| ElevenLabs reports 422 | Check the direct API’s body fields and allowed values. | Follow its official endpoint reference, not this site’s JSON request format. |
For this website, check both HTTP status and the JSON code: success uses 0; application errors use -1 and a message. Some application errors use HTTP 200, so status alone is insufficient. The API guide includes request and response details.
A task failed, or the credit balance looks wrong
Read the task’s taskStatus and, for failure or cancellation, taskInfo.userErrorCode. Public codes can include service_busy, content_safety_rejected, copyright_restricted and generation_failed. They identify a failure class rather than exposing the full upstream response.
The existing Terms describe credit return for failed generations. Compare the task state with your credit history; share the task ID and approximate time with support if they do not reconcile. A completed result that you dislike is different from a failed task and does not automatically trigger a failure refund. For rejected content, review the description and relevant rights instead of trying to bypass the restriction.
Downloaded file will not play
Check that the task succeeded and use the completed result’s audio URL. Do not save the JSON returned by this website’s generation endpoint as an MP3. Keep the original downloaded format and convert a copy if your editor requires another codec. If a URL stops working, revisit the saved creation; if it remains unavailable, contact support with the task ID.
Include the page or endpoint, task ID, approximate time, displayed error and a short description of expected behavior in a support request. Exclude API keys, authorization headers and private reference files. Continue with the video workflow or game workflow once the request and file are working.