A compact ComfyUI custom node that restores a video's default audio track, merges it into the selected MP4 or MKV container, saves the result, shows an inline video preview, and provides a stacked spectrogram image output for before/after comparison. Before run the workflow, do install:<ol><li>Clone the repository into <code>ComfyUI/custom_nodes</code>:<pre><code>cd ComfyUI/custom_nodes
git clone https://github.com/Merserk/ComfyUI-Video-Audio-Fix.git</code></pre></li><li>Run <code>install.py</code> with the Python used by ComfyUI.Windows Portable, from the <code>ComfyUI_windows_portable</code> directory:<pre><code>.\python_embeded\python.exe .\ComfyUI\custom_nodes\ComfyUI-Video-Audio-Fix\install.py</code></pre></li></ol>GitHub link: <a target="_blank" rel="ugc" href="https://github.com/Merserk/ComfyUI-Video-Audio-Fix">https://github.com/Merserk/ComfyUI-Video-Audio-Fix</a>Audio comparison: <a target="_blank" rel="ugc" href="https://drive.google.com/drive/folders/1aKuP7FjGEBJpOj5CWG0RB-qfC2QXMjd5?usp=sharing">https://drive.google.com/drive/folders/1aKuP7FjGEBJpOj5CWG0RB-qfC2QXMjd5?usp=sharing</a><span style="background-color:rgb(26, 27, 30);color:rgb(193, 194, 197);font-family:-apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Helvetica, Arial, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;;font-size:16px">Patreon (support): <a target="_blank" rel="ugc" href="https://www.patreon.com/mm744">https://www.patreon.com/mm744</a>

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