---
title: "ASF Media to Text via MP4 Conversion | Speechyou"
description: "Convert a saved Advanced Systems Format video to MP4 first, then use Speechyou to transcribe its spoken audio."
url: "https://speechyou.com/formats/asf-to-text"
---

# ASF to Text

Convert a saved Advanced Systems Format video to MP4 first, then use Speechyou to transcribe its spoken audio.

[Transcribe a converted file](https://app.speechyou.com/sign-up) [See how it works](#how-it-works)

3\-day free trial

Convert to MP4 before uploading

Open the .asf recording in a converter that can read its Windows Media streams. Export as MP4 with the speech track encoded as AAC. Confirm that the copy plays with sound before uploading it in Speechyou.

[How to convert a file in VLC](https://docs.videolan.me/vlc-user/desktop/3.0/en/basic/tipsandtricks/index.html#converting-a-media-file-format)

windows-media-archive.asf

MP4 upload

Text (.txt)

Excerpt from a converted ASF archive

Archivist: Is this the recording from the morning session? Coordinator: Yes. The opening is missing, but the speaker introductions start about two minutes in. Archivist: I’ll label the transcript as a partial recording.

## How it works

1.  ### Convert, then upload

    Convert the original to MP4. Then open Speechyou Notes, select Upload, and choose Upload & transcribe.

2.  ### Review the transcript

    Open the finished note and check the text against the recording. Use Edit transcript to correct names, terminology, or misheard words.

3.  ### Export Text (.txt)

    Open Export in the transcript and choose the file type. Save the file or share it with your team.

## Transcription guide

### Check that the ASF file holds a recording

Advanced Systems Format files can contain audio, video, or both. A small shortcut or playlist from an old Windows Media site may only point to the source. Locate the actual saved media and open it in a player before choosing an export format.

### Choose an export based on the available streams

For video with speech, make an MP4 with the intended audio stream. For an audio-only ASF, export PCM WAV and use the WAV transcription workflow instead. Keep the original copy and confirm the duration and audio of whichever export you make.

### Use the transcript to recover the spoken material

Check phrases around cuts or gaps in the source, which are common in older streaming archives. If another archive has a higher-quality copy, use it to verify hard-to-hear words. Save the revised transcript beside the source with the same name or collection identifier.

### Mark missing material in a partial Windows Media recording

If the file opens partway through a speaker’s introduction, check whether the archive has a complete second copy before converting. When only the partial recording is available, note the missing section in the transcript title or the archive record. Preserve the timestamps within the converted file and record any known offset to the full event separately. This lets a researcher trace quotations to the playable source and avoids confusing an opening that was absent from the recording with a passage missed by transcription.

### Check an ASF archive file

-   Locate the actual media file if you received an ASX playlist or an old streaming link.
-   Play the ASF and determine whether the recording includes video.
-   Export MP4 for video with speech or PCM WAV for audio-only material.
-   Check playback and duration before uploading the converted file.

## Frequently asked questions

Is ASF the same as WMV?

ASF is a container used by Windows Media. A .wmv file commonly uses an ASF container for its video. Either legacy extension needs a supported export before uploading to Speechyou.

Can I transcribe ASF with audio only?

Export a PCM WAV from the playable audio-only ASF, then upload the WAV in Speechyou Notes.

Can I use an old .asx playlist as the source?

Find the saved audio or video recording referenced by the playlist and make a supported MP4 or WAV export from that file.

## Related conversions

[Browse all formats](https://speechyou.com/formats)

-   [

    WMV to Text

    Convert a Windows Media Video file to MP4 before transcribing it.

    ](https://speechyou.com/formats/wmv-to-text)
-   [

    MP4 to Text

    Create a transcript from an MP4 meeting, lesson, or clip.

    ](https://speechyou.com/formats/mp4-to-text)
-   [

    WAV to Text

    Transcribe WAV files from recorders and editing tools.

    ](https://speechyou.com/formats/wav-to-text)
-   [

    Video to Text

    Turn spoken words in a video into searchable text.

    ](https://speechyou.com/formats/video-to-text)

## Try it with your own recording

[Start your 3\-day free trial](https://app.speechyou.com/sign-up) [View pricing](https://speechyou.com/pricing)