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For Music

NameStem NameDescription
InstrumentalinstrumentalRefers to music without vocals, only instruments
DrumsdrumsPercussion instruments producing rhythmic beats
VocalsvocalsSinging or vocal sounds
BassbassLow-frequency musical instrument
OtherotherOther unspecified musical instruments or sounds
GuitarguitarString instrument usually played with fingers
Other-x-Guitarother-x-guitarSpecific type or variation of a guitar
PianopianoKeyboard instrument producing sound via strings
WindwindInstruments like flute, saxophone, producing sound by vibrating air

For Dubbing/Film and Captioning/Transcription

NameStem NameDescription
MusicmusicGeneral music audio, including instruments and melodies
DialoguedialogueSpoken conversation or interaction between characters
TranscriptiontranscriptionText representation of spoken words or audio content
AlignmentalignmentSynchronization of audio and corresponding text or captions


In the provided cURL command, the "name" field in the JSON payload specifies the desired stem type for processing the audio file. It allows you to indicate what specific part of the audio you want to extract or process.

curl -L -X POST '' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <TOKEN>' \
--data-raw '{
"metadata": {
"format": "wav",
"name": "vocals"
"callbackUrl": "",
"assetId": "abc123"