M4V to AMB Converter

Extract M4V audio as Ambisonic B-Format files

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Spatial Audio Format

AMB captures full-sphere sound. Extract M4V audio for immersive VR, 360-degree video, and spatial listening projects.

Ambisonic Settings

Configure channel layout and encoding parameters for the Ambisonic output from your M4V source.

Secure Processing

M4V uploads are deleted after conversion. AMB output is automatically removed within 24 hours.

How to convert M4V to AMB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose amb or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your amb file right afterwards

About formats

M4V is a video container format developed by Apple Inc. and introduced alongside the iTunes Video Store in October 2005. Technically, M4V is nearly identical to the standard MP4 format (MPEG-4 Part 14), with the primary distinction being optional FairPlay DRM protection applied to purchased content from the iTunes Store. Unprotected M4V files are fully compatible with any player that handles MP4, as the underlying container structure and codec support are the same. The format typically contains H.264 video and AAC audio, supporting resolutions up to 4K and features like chapter markers, subtitle tracks, and metadata tags for title, artwork, and ratings. Apple chose the M4V extension to distinguish iTunes content from generic MP4 files, primarily so that DRM-protected purchases would be recognized by the Apple ecosystem of devices and software. M4V files play natively on macOS, iOS, iPadOS, and Apple TV, and unprotected versions work seamlessly in most major media players across all platforms. The format gained significant traction as the iTunes Store became a dominant platform for purchasing and renting digital movies and TV shows. Compatibility with the broader MP4 ecosystem means that video and audio streams within DRM-free M4V files can be processed by virtually any modern editing or transcoding tool without conversion.
Developer: Apple Inc.
Initial release: October 2005
AMB files contain audio encoded in Ambisonic B-format, a full-sphere surround sound technique conceived by Michael Gerzon during the 1970s. Unlike channel-based systems such as 5.1 or 7.1, Ambisonics captures a complete three-dimensional sound field using spherical harmonics — first-order B-format consists of four channels: W (omnidirectional), X (front-back), Y (left-right), and Z (up-down). This representation is speaker-independent, meaning one recording can be decoded to any loudspeaker arrangement or binaural headphones without remixing. AMB files typically store uncompressed PCM data and are processed by tools like SoX or specialized plugins. A core advantage is spatial flexibility — creators produce one master file that adapts to stereo, surround, or immersive playback. The format also scales elegantly: higher-order Ambisonics adds channels for increased spatial precision upon the same mathematical framework. With the growth of virtual reality, 360-degree video, and spatial audio for gaming, Ambisonics has experienced a resurgence, adopted by platforms like YouTube for immersive media delivery.
Initial release: 1975

Frequently Asked Questions

Why convert M4V to AMB?

AMB holds Ambisonic B-Format audio for spatial sound. Extract M4V audio for 3D audio projects, VR environments, and immersive experiences.

What plays AMB files?

Ambisonic decoders, VLC with spatial audio plugins, and professional audio tools like Reaper handle AMB files for surround sound output.

What is Ambisonic audio?

Ambisonics captures full-sphere sound fields. AMB files encode 3D audio that can be decoded for any speaker configuration or headphone setup.

Is AMB useful for VR?

Yes — Ambisonic audio is essential for immersive VR experiences. AMB provides the spatial data that creates realistic 3D sound environments.

Can I convert on mobile?

The converter runs in any browser including mobile. Create AMB files from M4V without desktop software.