wiro / video-audio-extract

## Overview Video Audio Extract is a Wiro-native utility that pulls the sound track out of a video file. It takes one video input, finds its audio stream, then outputs a standalone audio file in your chosen format. For lossy formats, it re-encodes audio so you can trade file size for quality. This helps you reuse voice, music, or ambience without sharing the full video. ## What you can build - Turn webinar recordings into audio-only episodes for podcasts - Extract interview audio for transcription or subtitle workflows - Pull background music or ambience from clips for reuse in edits - Create audio-only archives from recorded meetings and demos - Export voice tracks from screen recordings for cleanup in audio editors ## Inputs - A single video file to extract sound from. Upload a file or provide a direct URL. The video must contain an audio track, or the run will fail. Supported upload containers on Wiro include MP4, WebM, and MOV. - An output audio format selection. Pick a compressed format (like MP3, AAC, OGG, Opus, M4A) or a lossless format (WAV, FLAC). - An optional audio bitrate target for compressed outputs. Use a value from 32 kbps to 320 kbps, in 32 kbps steps. This setting is ignored for WAV and FLAC. ## Outputs The model returns one extracted audio file. - You get a downloadable audio asset with a filename, a MIME content type, a byte size, and a hosted file URL. - The audio length matches the source audio track duration. The video stream is not included in the output. ## Limitations - Videos with no audio stream can’t be processed. - Lossless exports (WAV, FLAC) can create very large files, especially for long videos. - If the source audio is clipped, noisy, very quiet, or already heavily compressed, the extracted audio will keep those issues. - Low-quality inputs can cause surprises. Watch for screen recordings with glitchy audio, inconsistent encoding, or damaged containers. - Wiro file uploads have a per-file size limit. Very large videos may require trimming or a smaller source file. ## Safety & compliance - Only extract and reuse audio you have rights to use. This includes music, dialogue, and background audio. - Don’t upload content with sensitive personal data unless you have a lawful reason and user consent. - Hosted output file URLs are public to anyone who has the link. Download and store results in your own secure storage if needed.