Voice Changer (Bytes)

POST

Takes an audio file of speech, and returns an audio file of speech spoken with the same intonation, but with a different voice.

This endpoint is priced at 15 characters per second of input audio.

Auth

X-API-KeystringRequired

Cartesia-Version"2024-06-10"RequiredDefaults to 2024-06-10

This endpoint expects a multipart form containing a file.

clipfileRequired

voice[id]stringRequired

output_format[container]enumRequired

Allowed values: rawwavmp3

output_format[sample_rate]integerRequired

output_format[encoding]enumOptional

Required for raw and wav containers.

Allowed values: pcm_f32lepcm_s16lepcm_mulawpcm_alaw

output_format[bit_rate]integerOptional

Required for mp3 containers.

This endpoint returns a file.

1	curl -X POST https://api.cartesia.ai/voice-changer/bytes \
2	-H "Cartesia-Version: 2024-06-10" \
3	-H "X-API-Key: <APIKeyHeader>" \
4	-H "Content-Type: multipart/form-data" \
5	-F clip=@<file1> \
6	-F voice[id]="694f9389-aac1-45b6-b726-9d9369183238" \
7	-F output_format[container]="mp3" \
8	-F output_format[sample_rate]='44100' \
9	-F output_format[bit_rate]='128000'