OGV to VOX Converter

Extract Dialogic VOX audio from Ogg Video files

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Specialized Output

VOX serves IVR telephony platforms. Get OGV audio into the exact format your target system requires.

Cloud Conversion

VOX extraction from OGV runs on our servers — no specialized software needed on your computer.

Secure Processing

OGV uploads are deleted after conversion. VOX output is purged from servers within 24 hours.

How to convert OGV to VOX

1

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

2

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

3

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

About formats

OGV (Ogg Video) is an open multimedia format that combines the Theora video codec with the Ogg container, both developed by the Xiph.Org Foundation as royalty-free alternatives to proprietary media formats. Theora 1.0 reached stable release in November 2008, though development had been underway since 2002 based on the VP3 codec donated by On2 Technologies. Theora compresses video using block-based motion compensation with discrete cosine transform coding, achieving quality roughly comparable to MPEG-4 Part 2 at similar bit rates. The Ogg container uses a page-based multiplexing scheme that interleaves Theora video with Vorbis or Opus audio, supporting features like chained streams for seamless concatenation and multiplexed streams for synchronized multimedia playback. OGV was historically significant in the push for open web standards, serving as one of the first freely implementable video formats proposed for the HTML5 video element. Firefox and Chrome both shipped native OGV support, demonstrating that web video could function without reliance on proprietary plugins or licensed codecs. The format also supports FLAC lossless audio, Kate subtitle streams, and Skeleton metadata within the Ogg container. While WebM and AV1 have largely replaced OGV in the open-source video landscape, the format remains available in Linux distributions, open-source media tools, and contexts where complete freedom from patent concerns is a priority.
Initial release: November 3, 2008
VOX is a headerless audio format built around Dialogic ADPCM encoding, widely adopted in telephony, interactive voice response (IVR) systems, and voice mail platforms since the 1980s. Each audio sample is compressed into 4 bits using an algorithm developed by Oki Electric and implemented in hardware on Dialogic Corporation's telephony interface cards. VOX files typically use a sampling rate of 6000 or 8000 Hz, producing extremely compact recordings optimized for speech intelligibility rather than musical fidelity. Because the format carries no header, playback software must know the sample rate and encoding parameters in advance — a trade-off that reduces overhead but demands careful file management. The primary advantage of VOX is storage efficiency: a one-minute voice recording at 8 kHz occupies roughly 240 KB, making it practical for systems storing thousands of prompts. Dialogic ADPCM conforms to the ITU-T G.726 standard, ensuring interoperability across telephony equipment from different vendors. Even as modern call centers migrate to IP-based systems with codecs like Opus, vast libraries of VOX recordings persist in legacy IVR deployments and compliance archives worldwide.
Initial release: 1983

Frequently Asked Questions

Why convert OGV to VOX?

VOX is designed for IVR telephony platforms. Extract OGV audio into this specialized format for its intended applications.

What uses VOX files?

Applications and systems built for IVR telephony platforms accept VOX as their native audio input format.

Is VOX widely compatible?

VOX is a specialized format. SOX and dedicated tools handle it; mainstream players may not support it.

Will quality be adequate?

VOX quality is suited for its intended purpose — IVR telephony platforms applications work optimally with this format.

Can I batch convert?

Upload several OGV files and extract VOX audio from each simultaneously for efficient processing.