Convert Speech to Speech

POST

https://developer.voicemaker.in/api/v1/speech-to-speech

Convert an existing audio file into a different voice using the Speech to Speech API (voice changer api). This endpoint re-voices audio while preserving the original timing, pacing, and structure.

Supported voices: ProPlus and Cloned voice IDs only
Pricing: 100 credits per second of audio

Request

Header Params

Body Params multipart/form-dataRequired

Responses

🟢200

application/json

Speech successfully converted

Body

🟠401

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://developer.voicemaker.in/api/v1/speech-to-speech' \
--header 'Authorization: Bearer fe5cb5e0-8262-11f0-b766-891a4f3d9a69' \
--form 'file=@""' \
--form 'VoiceId="proplus-voice_id"' \
--form 'OutputFormat=""' \
--form 'SampleRate=""' \
--form 'ResponseType=""' \
--form 'MasterVolume=""' \
--form 'MasterSpeed=""' \
--form 'MasterPitch=""'

Response Example

{
    "success": true,
    "path": "https://developer.voicemaker.in/uploads-speeches/example/speech.mp3",
    "usedChars": 2700,
    "remainChars": 3048221,
    "remainKeyChars": 3048221
}

Modified at 2026-01-12 17:18:43

Delete Voice Clone

Speech to Text API