The .asf filename extension refers to the Microsoft owned audio and digital video container, advanced systems format. It is a container for windows media audio and windows media video but shares the same internal structure as both WMA and WMV file formats. The format was designed with the goal of increasing efficiency in distribution of audio video files across computer networks. However, it works just as well for local system playback. The asf format forms part of Microsoft's Foundation framework. The major feature of the format is its ability to add digital rights management by providing the framework for encrypting audio and video files.
HEVC (H.265) is a video compression standard offering twice the data compression of H.264 at the same quality level.
FreeFileConvert uses tuned encoding for ASF to HEVC conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload ASF files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized HEVC results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent HEVC audio with dependable progress tracking.
An ASF file can wrap bit streams formed from various formats such as binary, JPEG still images, script commands, video, and audio. However it is principally used as a wrapper for audio and video files specifically WMA and WMV. The ASF format includes support for metadata including content descriptors, and information for DRM use. Content Encryption is also supported requiring the use of a license key before the asf file can be played.
HEVC supports resolutions up to 8K UHD and uses advanced features like larger coding units and improved motion prediction.
Upload your video file in the ASF format from your device, Dropbox, or Google Drive.
Select HEVC as the output format and click Convert. Adjust optional settings if needed.
Download the converted video file. Each file stays available for up to 5 downloads.