POST /v1/voice-isolator

Voice isolator

Remove background noise from one recording and return a download link for the cleaned file.

POST https://api.pascalai.co/v1/voice-isolator
Content-Type: multipart/form-data

Authenticate with Authorization: Bearer and an API key. Send model before file. The file must be under 500 MB. The call remains open for up to 4 minutes. When processing has finished inside that window, the body is the job. When status is queued or running, retrieve the same object with GET /v1/voice-isolator/{job_id}.

Field	Type	Description
`model`Required	string	Catalogue id of the isolator model. This part must be sent before the file.
`file`Required	file	Audio file to clean. The file must be under 500 MB.
`params`	string	JSON object for that model, encoded as a string. Omit the field, or send an empty string, to use the defaults. The value must be a JSON object. The fields are on the model page.
`name`	string	Optional label stored on the job and returned as name.

Response

200 with the job. A successful file is charged $0.05 plus the audio duration in minutes. result.artifacts contains the cleaned file. url is the download link. Download the file within one day. The file is deleted after that. The job record remains.

Batch

POST /v1/voice-isolator/batch

Clean up to 50 files in a single request. All files use the same model and the same parameters. Send model, then params, then each audio file as a part named file. Each file must be under 500 MB.

The response contains the batch identifier. Retrieve progress with GET /v1/voice-isolator/batch/{batch_id}. An account may have two open batches. A successful batch is charged $0.05 once. Each file is charged for its audio duration in minutes.

Example

curl https://api.pascalai.co/v1/voice-isolator \
  -H "Authorization: Bearer $PASCAL_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -F model=deepfilternet2 \
  -F params='{"attenuation_limit_db":60,"post_filter":true}' \
  -F file=@speech.wav

curl https://api.pascalai.co/v1/voice-isolator/$JOB_ID \
  -H "Authorization: Bearer $PASCAL_API_KEY"

Models

rnnoiseSpeech denoise. Output options only.
deepfilternet2DeepFilterNet 2. attenuation_limit_db, post_filter, and LSNR scale.
deepfilternet3DeepFilterNet 3. Same extra knobs as DeepFilterNet 2.
clearervoice-studioMossFormer2 denoise. No DeepFilterNet knobs.
resemble-denoiseResemble denoise. Output options only.