Paul de Lavallaz
823e6b72f1
ComfyUI calls VALIDATE_INPUTS once per declared input field, passing that field's value as the first positional arg. Our validator only checked `url`, so when called with `timeout_sec=120` it tried `isinstance(120, str)` → False → returned "url vacío" for the timeout_sec field too. That's why the screenshot shows the same error twice. Two fixes: - Remove VALIDATE_INPUTS entirely. The real validation (non-empty URL) already happens inside load() at execution time. - Mark `url` as forceInput=True so it can only be wired (no manual default text), avoiding the "default value is empty" UI warning.
comfyui-url-to-audio
ComfyUI custom node that loads AUDIO from a public URL.
Why
Some ComfyDeploy server images ship a broken torchcodec (missing libnppicc.so.13),
which makes the default LoadAudioFromURL / ComfyUIDeployExternalAudio flows crash with:
TypeError: 'NoneType' object is not subscriptable
This node bypasses torchcodec entirely. It downloads the file via requests,
detects the format (mp3 / wav / m4a / ogg / flac / aac / opus), then tries 3 backends
in order until one succeeds:
- torchaudio (disk file)
- soundfile (in-memory bytes)
- ffmpeg → wav (hard fallback)
Node
| Name | Display | Category |
|---|---|---|
URL_To_Audio |
URL → Audio |
🔗ComfyDeploy |
Inputs
| Field | Type | Notes |
|---|---|---|
url |
STRING | Public URL of the audio file |
timeout_sec |
INT (optional) | HTTP timeout, default 90 |
Output
| Name | Type |
|---|---|
audio |
AUDIO |
The AUDIO dict format is the standard ComfyUI one:
{"waveform": torch.Tensor [batch=1, channels, samples], "sample_rate": int}
Wiring example (Kling+Sync workflow)
Replace the broken audio loader with:
ExternalText (input_id="audio_url") ─→ URL → Audio ─→ FalLipsyncV3.audio
From your client, send the audio URL as a string instead of uploading the WAV file:
{
"deployment_id": "...",
"inputs": {
"input_image": image_url,
"audio_url": "https://your-cdn.com/voice.mp3",
"motion": "...",
...
}
}
Install (ComfyDeploy)
Add this repo URL to your ComfyDeploy machine's custom nodes list, or in a self-hosted ComfyUI:
cd ComfyUI/custom_nodes
git clone https://github.com/PauldeLavallaz/comfyui-url-to-audio
pip install requests soundfile
License
MIT