en
Video Format Basic Specialized Directly accepted

ASF (Advanced Systems Format (Microsoft))

Legacy Microsoft container for streaming via Windows Media Player. Standard in corporate, government webcasts and security cameras from the 2000s. VoxScriber is the only online transcription service that accepts .asf directly.

Yes, we support ASF!

Technical Specifications

Max File Size 5 GB
Max Duration 10 horas
Bit Rate 20–192 kbps (WMA)
Compression Lossy

Advantages

  • Only online service that transcribes .asf without manual conversion
  • Compatible with legacy security camera files
  • Supports recordings from hearings and legacy judicial systems
  • Integrated player — listen to .asf directly in the dashboard

Disadvantages

  • Microsoft proprietary format (not supported by modern browsers)
  • Generally low audio quality (old WMA codec)
  • Not recommended for new recordings

Use Cases

Corporate and government webcasts from the 2000sLegacy IP security camera recordingsCourt hearings and legal proceedings in legacy systemsJournalistic and institutional archivesCorporate training recorded via Windows Media Encoder

How It Works

1

Upload your file

Upload your ASF file via browser or drag and drop.

2

Automatic transcription

Our AI transcribes the audio with high accuracy in minutes.

3

Download the result

Download the transcription as text, SRT, VTT or other formats.

Yes, we support ASF!

Legacy Microsoft container for streaming via Windows Media Player. Standard in corporate, government webcasts and security cameras from the 2000s. VoxScriber is the only online transcription service that accepts .asf directly.

Frequently Asked Questions

Does VoxScriber support ASF files?

Yes! VoxScriber fully supports ASF files. Simply upload your file and our AI will automatically transcribe it with high accuracy.

What is the audio quality of ASF?

ASF offers Basic audio quality with Lossy compression. This makes it suitable for most transcription use cases — our AssemblyAI engine extracts audio accurately regardless of compression level.

How do I transcribe a ASF file to text?

Go to VoxScriber, upload your ASF file (up to 5 GB / 10 hours), select the language and click transcribe. Your result will be ready in minutes as text, SRT or VTT.