Long-form audio
Convert long YouTube videos to MP3
Long videos need more download time, temporary storage, and encoding work than short clips. AudioFetcher Supporter accepts eligible videos up to 12 hours and shows progress through each stage.
Why long videos take longer
Your connection speed is only one part of the job. AudioFetcher must first resolve the source, download its complete media stream through the server, and encode the final MP3.
- 1Source delivery varies
Two videos of the same duration can arrive at very different speeds because YouTube may serve them through different formats or delivery paths.
- 2Encoding is CPU work
After downloading, the server must decode the source audio and encode the selected MP3 bitrate.
- 3Higher quality creates more output
A 320 kbps MP3 is larger than a 128 kbps MP3 and can take longer to write and transfer.
- 4The page should stay open
Keep the conversion page open so progress and the final download link remain visible.
A progress stage can pause briefly without the job being stuck. Use the retry action only after an error appears or progress has stopped for an unusually long time.
Long-video questions
Why can a three-hour video be faster than a one-hour video?
Duration is not the only factor. Source format, server response speed, throttling, media size, and the selected bitrate all affect the total time.
What happens to the file on the server?
AudioFetcher keeps completed output only for the short download window needed to deliver it. It is not a permanent file-hosting service.
What should I do if encoding fails?
Retry once. If the failure repeats, use the troubleshooting page and send the exact YouTube URL and visible error so the issue can be reproduced.