DivX to IMA Converter

Extract DivX audio as IMA ADPCM compressed format online

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Compact Audio Output

IMA ADPCM packs DivX audio into roughly one-quarter its raw PCM size. Ideal for embedded systems and applications with tight storage limits.

DivX to IMA Directly

Extract audio from DivX video and encode it as IMA in a single step — no intermediate conversions or manual audio extraction needed.

Secure Processing

Your DivX uploads are deleted right after conversion. IMA output files are removed within 24 hours to keep your audio private.

How to convert DIVX to IMA

1

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

2

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

3

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

About formats

DivX is a family of video codecs and a media container format developed by DivX, LLC. The project traces its roots to a hacked version of the Microsoft MPEG-4 v3 codec that circulated in the late 1990s, but the legitimate DivX codec launched in January 2001 as an open-source project called OpenDivX before transitioning to a proprietary commercial product. The codec is based on MPEG-4 Part 2 (ASP) compression and later versions incorporated H.264/AVC and HEVC support. DivX gained enormous popularity in the early 2000s for its ability to compress a full-length movie into a file small enough to fit on a single CD-ROM while maintaining watchable visual quality. This compression efficiency made DivX a defining format of the early internet era, when bandwidth and storage were scarce resources. The DivX Media Format (.divx) container adds features like interactive menus, chapters, subtitles, and alternate audio tracks, bringing DVD-like functionality to digital files. DivX certification became a common label on consumer electronics, with thousands of DVD players and other devices supporting DivX playback natively. The codec also pioneered quality-based variable bit rate encoding that allocates more data to complex scenes and less to static ones, resulting in consistent visual quality throughout a video.
Developer: DivX, LLC
Initial release: January 15, 2001
IMA ADPCM (Adaptive Differential Pulse-Code Modulation) is a compact audio coding standard published by the Interactive Multimedia Association in 1992, addressing the need for a lightweight, royalty-free compression scheme suitable for early multimedia PCs and embedded devices. The algorithm encodes each sample as a 4-bit nibble representing the quantized difference from the previous sample, while an adaptive step-size table adjusts dynamically to track signal amplitude — delivering a fixed 4:1 compression ratio over 16-bit PCM. Decoding requires only an integer multiply-add per sample and a small lookup table, so even modest 1990s CPUs could decompress in real time without dedicated DSP. The format became deeply embedded in the multimedia landscape: Microsoft adopted it as a standard ACM codec for WAV files, game engines relied on it for sound effects, and telephony equipment used it for voice storage. Its advantages are enduring: predictable 4:1 size reduction simplifies buffer allocation in constrained environments, the decode path runs on 8-bit microcontrollers, and the open specification made IMA ADPCM one of the most broadly implemented audio codecs in computing history.
Initial release: 1992

Frequently Asked Questions

Why convert DivX to IMA?

IMA ADPCM offers 4:1 audio compression with 16-bit precision claims. It is used in embedded systems and legacy multimedia applications.

What plays IMA files?

SOX, Audacity (with raw import), and embedded audio systems handle IMA ADPCM. The format is headerless, so players need format parameters.

How does IMA compare to VOX?

Both use ADPCM at 4 bits per sample. IMA claims 16-bit precision while VOX has 12-bit — in practice, sound quality is comparable.

Is IMA good for voice?

IMA works well for speech and basic audio where file size matters more than high fidelity. It compresses voice adequately for many applications.

Does DivX audio quality survive?

IMA ADPCM is a lossy format. DivX audio is compressed to roughly 25% of raw PCM size — suitable for speech but not audiophile listening.