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API Biometric Redaction Parameters

Access Token

Automatically redact biometric identifiers from audio for privacy compliance.

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Example Curl Usage

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✅ Minimal biometric redaction request (uses defaults)

curl -X POST https://voiceharbor.ai/api/speech-to-speech-biometric-redaction \
  -H "Authorization: Bearer YOUR_USAGE_TOKEN" \
  -F "source_audio=@./martin.wav;type=audio/wav" \
  --output result.wav

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🎯 Custom biometric request

curl -X POST https://voiceharbor.ai/api/speech-to-speech-biometric-redaction \
  -H "Authorization: Bearer YOUR_USAGE_TOKEN" \
  -F "source_audio=@./martin.wav;type=audio/wav" \
  -F "model_id=advanced" \
  -F "biometric-age=same" \
  -F "gender=opposite" \
  -F "emotion=sad" \
  -F "language=fr" \
  --output redacted_fr.wav
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biometric-age
string
default:"young-adult"
Biometric age group to apply to the anonymized voice identity. Only used when avatar is not provided. Allowed values:
  • young-adult (18–39)
  • middle-aged-adult (40–59)
  • senior-adult (60+)
  • same
  • random
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gender
string
default:"random"
Target gender of the anonymized voice identity. Allowed values:
  • same
  • opposite
  • random
  • f
  • m
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language
string
default:"en"
Target language of the audio file. Allowed values:
  • en
  • fr
  • it
  • es
  • de
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model_id
string
default:"mini"
Model variant for biometric voice print redaction. Allowed values:
  • mini 0.25 RTF
  • advanced 0.75 RTF
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emotion
string
Optional emotion to apply to anonymised identity.
  • happy
  • default
  • sad

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Audio Input Requirements

To ensure reliable processing and accurate biometric redaction, uploaded audio files must meet the following requirements.

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Supported File Formats

Only the following audio formats are supported for I/O, Mono or Stereo:
  • WAV (.wav)

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File Size Limits

  • Maximum file size: 10 MB per request
  • Files exceeding this limit will be rejected with a 413 Payload Too Large error.
If you need higher limits for enterprise use cases, please contact support.

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Audio Duration Limits

  • Minimum duration: > 0 seconds
  • Maximum duration: 60 minutes (3600 seconds)
Files longer than 60 minutes are not accepted, even if they meet the file size limit.