Registers an audio clip (WAV or MP3, 2 to 30 seconds, up to 15 MB) in your private asset library and outputs its asset_id, group_id and an asset:// URI, so a Seedance 2 or 2.5 reference can use the asset instead of the clip. It needs Dreamina Seedance Advanced Creation Rights, the ModelArk API key, and the IAM access key and secret key saved in Settings → BytePlus (see API keys). It generates nothing, and you should only use audio you are authorized to use.
Reuse an existing asset group ID to add more assets of the same person: a virtual portrait (AIGC) group, or a verified real person's LivenessFace group. Leave empty to find or create the virtual portrait (AIGC) group named group_name. Real-person verification is a QR-code flow in the ModelArk console (BytePlus has no API for it), so unlike ComfyUI core's node this node does not start it: verify the person in the console, then paste the group ID here.
audiooptional
AUDIO
Audio to register as a personal asset (2-30 s). Leave unconnected to use audio_url instead.
Advanced inputs (5)
Input
Type
Default
What it does
audio_url
text
Public HTTPS URL of a .wav or .mp3 file, used instead of the audio input: sent straight to CreateAsset without a Comfy.org upload.
group_name
text
ComfyUI Virtual Portraits
Used when group_id is empty: the virtual portrait (AIGC) group, matched by exact name and created if missing. Use one group per person.
asset_name
text
ComfyUI audio
Name of the new asset.
project_name
text
default
ModelArk project that holds the asset library.
wait_until_active
on/off
on
Wait (up to 10 min) until the asset is Active and can be used in Seedance.
Audio source: connect audio, or set audio_url to a public HTTPS link to a .wav or .mp3 file, not both. A connected clip is converted to WAV and uploaded to Comfy.org storage first (Comfy.org login needed). A link goes straight to the library.
Group: with a group_id, the asset joins that group. With an empty one, the node finds the AIGC group whose name is exactly group_name, or creates it. Use one group per person.
Real people: verify the person in the ModelArk console, then paste the group ID. The node cannot start that QR-code flow.
Waiting: with wait_until_active on, the node waits until the asset is Active. With it off, the asset is still Processing when the IDs come out.
A connected clip must be 2 to 30 seconds long and, as WAV, at most 15 MB. For a longer or larger clip, trim it or pass a public MP3 in audio_url. A link is not checked for length or size here.
audio_url must end in .wav or .mp3, or have no file extension.
The node is not an output node. Connect at least one of its outputs to another node, or it does not run.
The same connected clip, with the same group, project, account and asset_name, reuses its earlier asset while that asset still exists. This memory is cleared when ComfyUI restarts. A link in audio_url is never deduplicated.
The node waits up to 10 minutes for Active, then stops with an error. The asset may still become Active: list it with Asset Library before you create it again.
Creating assets is rate limited by your rights tier: 3 requests per minute for Entry, 120 for Advanced and 300 for Premium.
Creation requests are not retried automatically, so a timeout cannot create a second asset.
Interrupting a run stops the node’s wait. An asset that was already created stays in your library.
