Installation

You can install this node via ComfyUI Manager or comfy-cli.

Via ComfyUI Manager

Search ComfyUI-SoX-Mixdown and install it.

https://github.com/ltdrdata/ComfyUI-Manager?tab=readme-ov-file#how-to-use

Via comfy-cli

comfy node registry-install comfyui-sox-mixdown

https://registry.comfy.org/publishers/johndoesmithee/nodes/comfyui-sox-mixdown

https://docs.comfy.org/comfy-cli/getting-started

ComfyUI-SoX-Mixdown

ComfyUI custom node for sox's mixdown function such as "sox --combine inputfile1.wav inputfile2.wav outputfile.wav".

You can mixdown two same length audio clips to one with this node.

To use this node, let's install the SoX command first ;-) You can install SoX with following command.

<details> <summary>SoX Installing Commands</summary>

Windows

winget install ChrisBagwell.SoX

Mac

brew install sox

Linux(too many way...)

apt install sox

dnf install sox

pacman -S sox

</details>

Never forget to add "sox" command to your path.

External Links

ComfyUI's docs for making and publishing custom nodes

https://docs.comfy.org/custom-nodes/overview

https://docs.comfy.org/registry/publishing

<details> <summary> <strong> Tutorials for Making Custom Nodes</strong> </summary>

Suzie1/ComfyUI_Guide_To_Making_Custom_Nodes: A guide to making custom nodes in ComfyUI

https://github.com/Suzie1/ComfyUI_Guide_To_Making_Custom_Nodes

[TUTORIAL] Create a custom node in 5 minutes! (ComfyUI custom node beginners guide) : r/comfyui

https://www.reddit.com/r/comfyui/comments/18wp6oj/tutorial_create_a_custom_node_in_5_minutes/

A Basic Guide to Creating ComfyUI Custom Nodes | Civitai

https://civitai.com/articles/4934/a-basic-guide-to-creating-comfyui-custom-nodes

</details>

SoX

https://sourceforge.net/projects/sox/

pysox

https://github.com/marl/pysox

日本語参考情報

<details> <summary> <strong> カスタムノード作成日本語参考情報 </strong> </summary>

ComfyUIのプラグインを作る！

https://zenn.dev/4kk11/articles/4e36fc68293bd2

ComfyUIのカスタムノードを作るには｜にゃおき

https://note.com/nyaoki_board/n/n96ab9293291c

「ComfyUI ノードを作ろう」タグが付けられた記事一覧 | 謎の技術研究部

https://www.ultra-noob.com/tag/comfy-ui-%E3%83%8E%E3%83%BC%E3%83%89%E3%82%92%E4%BD%9C%E3%82%8D%E3%81%86/

ComfyUIのコードをまるごとGemini 1.5 Proに読ませてみた😂｜一般オーク

https://note.com/ippan_orc/n/naed830f52f99

【西川和久の不定期コラム】NVIDIAがローカルで手軽に動せるAIチャット「Chat with RTX」をリリース！その実力は？ - PC Watch

https://pc.watch.impress.co.jp/docs/column/nishikawa/1571371.html

</details>

いずれかの検索拡張生成（RAG）に ComfyUI のソース一式を読ませると、いい感じにサポートしてくれるかもしれません。