Video Audio Extract by Wiro

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.