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POST
https://app.dubformer.ai
/
api
/
v1
/
projects
/
{project_id}
/
validate-translation-request
curl -X POST https://app.dubformer.ai/api/v1/projects/{project_id}/validate-translation-request \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "target_script": [
      {
        "start_ms": 100,
        "end_ms": 1544,
        "text": "Au revoir le monde!",
        "speaker_id": 1
      }
    ],
    "target_speakers": [
      {
        "speaker_id": 1,
        "voice_key": "53f154:fr-FR-DeniseNeural",
        "style": "feminine"
      }
    ]
  }'

{
  "valid": true
}

curl -X POST https://app.dubformer.ai/api/v1/projects/{project_id}/validate-translation-request \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "target_script": [
      {
        "start_ms": 100,
        "end_ms": 1544,
        "text": "Au revoir le monde!",
        "speaker_id": 1
      }
    ],
    "target_speakers": [
      {
        "speaker_id": 1,
        "voice_key": "53f154:fr-FR-DeniseNeural",
        "style": "feminine"
      }
    ]
  }'

​
Path Parameters

​
project_id
string
required
The unique identifier of the project to validate against.

​
Request Body

The request body uses the same format as Create Re-translation. All the same parameters are accepted:
​
target_script
array
required
Array of target language script segments for dubbing.
​
target_speakers
array
required
Array of target speaker configurations for dubbing.
​
mixing_mode
string
Audio mixing mode for validation.
​
use_fixed_timings
boolean
Whether to use fixed timings from the target script.
​
tts_volume
string
TTS volume level for validation.

​
Response

​
Valid Request

​
valid
boolean
Always true when validation passes.
{
  "valid": true
}

​
Invalid Request

When validation fails, the response includes error details:
​
error
string
Error type (e.g., “ValidationError”).
​
message
string
Detailed error message explaining what’s wrong.
{
  "error": "ValidationError",
  "message": "Unknown voice unknown-voice"
}

{
  "error": "ValidationError",
  "message": "Speaker ID 2 referenced in script but not found in target_speakers"
}

{
  "error": "ValidationError",
  "message": "Invalid timing: start_ms must be less than end_ms"
}

​
Common Validation Errors

​
Voice Validation

  • Unknown voice keys that don’t exist in the system
  • Voice keys not compatible with the project’s target language
  • Missing voice_key in speaker configuration

​
Speaker Validation

  • Speaker IDs in script don’t match any target_speakers entries
  • Duplicate speaker IDs in target_speakers array
  • Missing required speaker fields (speaker_id, voice_key, style)

​
Script Validation

  • Invalid timing values (start_ms >= end_ms)
  • Empty or missing text content
  • Invalid speaker_id references
  • Overlapping time segments

​
Language Compatibility

  • Voice doesn’t support the project’s target language
  • Special voice keys (soundalike, emotional_transfer) used with unsupported languages