comfyui-url2audio

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:

1. torchaudio (disk file)
2. soundfile (in-memory bytes)
3. 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-url2audio
pip install requests soundfile

License

MIT