How to extract audio from a video with an API
Turning a webinar or interview recording into an MP3 for a podcast or a transcription pipeline is a one-line FFmpeg job, if you have FFmpeg. With an API it is one call and a download.
The manual FFmpeg way
The -vn flag drops the video, and the codec choice controls quality. A typed API takes a single format option and returns the file.
ffmpeg -i webinar.mp4 -vn -acodec libmp3lame -q:a 2 webinar.mp3
Do it with one API call
- 1
Provide the video
Give a public URL or upload the recording and use the returned media URL.
- 2
Call the extract-audio tool
Send the source as "main" and set format to mp3 or wav.
- 3
Download the audio
Poll the job and download the extracted MP3 or WAV from the signed URL.
REST
curl https://kinopipe.com/api/v1/tools/extract-audio \
-H "Authorization: Bearer kp_live_..." \
-H "Content-Type: application/json" \
-d '{
"inputs": [ { "id": "main", "url": "https://example.com/webinar.mp4" } ],
"options": { "format": "mp3" }
}'FAQ
Can I get a WAV instead of an MP3?
Yes. Set the format option to wav for uncompressed audio, or mp3 for a smaller file.
Is this good for transcription?
Yes. Extract a clean MP3 or WAV and feed it straight into a speech-to-text pipeline.