Patch the interpretation draft

Update the source language, keyterms, cloning strength and target languages of a draft.

PATCH /sound_clone/api/v1/interpretation/projects/{projectId}/draft

curl --location --request PATCH 'https://api.myvocal.ai/sound_clone/api/v1/interpretation/projects/ip_.../draft' \
--header 'accessKey: <your_api_key>' \
--header 'Content-Type: application/json' \
--data '{
  "expectedVersion": 1,
  "sourceLanguage": "en",
  "targetLanguages": ["es", "fr"],
  "keyterms": ["MyVocal"],
  "cloningStrength": 7
}'

200 Success

{
  "code": 1,
  "message": "success",
  "data": {
    "projectId": "ip_...",
    "settingsVersion": 2,
    "state": "DRAFT",
    "sourceLanguage": "en",
    "keyterms": ["MyVocal"],
    "cloningStrength": 7,
    "targetLanguages": ["es", "fr"],
    "sourceDurationMs": "0",
    "sourceState": "DRAFT",
    "requestId": "..."
  }
}

_{Interpretation · Translate and dub uploaded audio/video · Workflow: Interpretation quickstart · Polling: Async jobs and retries}

Updates only the fields you provide. This is a patch, not a replace.

​

Header

accessKey · string · required

Your API key. See Authentication.

​

Path

projectId · string · required

The project identifier.

​

Body

expectedVersion · number

Optional concurrency guard. If present and different from the current version, the request is rejected with 47116.

sourceLanguage · string | null

null, an empty string or AUTO normalizes to automatic detection. Omitting the field keeps the stored value — it does not clear it.

keyterms · array

Replaces the whole list when provided. Up to 1000 entries; each up to 50 code points, up to 5 words, and without < > { } [ ] \. An empty array clears the list.

cloningStrength · number

0–10. When omitted or null, the stored value is kept; 7 is only used as a fallback when the draft has no value at all.

targetLanguages · array

Replaces the whole list when provided. An empty array clears the selection.

​

Response

projectId · string

Project identifier.

settingsVersion · number

The new draft version.

state · string

The project state.

sourceLanguage · string | null

The stored source language, or null for auto-detection.

keyterms · array

The stored keyterms.

cloningStrength · number | null

The stored cloning strength.

targetLanguages · array

The stored target languages.

sourceDurationMs · string

Source duration as a string ("0" before a source is uploaded).

sourceState · string

The source state: DRAFT, FROZEN or SUPERSEDED.

curl --location --request PATCH 'https://api.myvocal.ai/sound_clone/api/v1/interpretation/projects/ip_.../draft' \
--header 'accessKey: <your_api_key>' \
--header 'Content-Type: application/json' \
--data '{
  "expectedVersion": 1,
  "sourceLanguage": "en",
  "targetLanguages": ["es", "fr"],
  "keyterms": ["MyVocal"],
  "cloningStrength": 7
}'

200 Success

{
  "code": 1,
  "message": "success",
  "data": {
    "projectId": "ip_...",
    "settingsVersion": 2,
    "state": "DRAFT",
    "sourceLanguage": "en",
    "keyterms": ["MyVocal"],
    "cloningStrength": 7,
    "targetLanguages": ["es", "fr"],
    "sourceDurationMs": "0",
    "sourceState": "DRAFT",
    "requestId": "..."
  }
}

“Field omitted or null” keeps the current value for sourceLanguage, keyterms, cloningStrength and targetLanguages; a provided array — including an empty one — replaces the whole list. Do not use null to clear a field.

​

Common errors

• code = 47116: expectedVersion does not match the current version.
• code = 47123: the draft is frozen because a source version was already committed; remove the source first.
• code = 47101: an invalid value, for example a keyterm that is too long or contains a forbidden character.
• code = 47102: the project does not exist or is not owned by your account.