AV1 to IMA Converter

Extract IMA ADPCM audio from AV1 video online

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Embedded Audio

IMA ADPCM is standard in embedded systems and games — converting from AV1 produces audio for those platforms.

Compact and Fast

IMA achieves 4:1 compression with trivial CPU cost — perfect for resource-constrained audio playback environments.

Secure Processing

AV1 uploads are erased immediately, and IMA outputs are deleted from our servers within 24 hours.

How to convert AV1 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

AV1 (AOMedia Video 1) is an open, royalty-free video coding format developed by the Alliance for Open Media, a consortium whose founding members include Google, Mozilla, Microsoft, Amazon, Netflix, and Intel, among others. The specification was finalized in June 2018 with the goal of providing a next-generation video codec that surpasses the compression efficiency of H.264 and HEVC while remaining free from licensing fees. AV1 achieves roughly 30-50% better compression than HEVC at equivalent visual quality, making it particularly attractive for streaming platforms seeking to reduce bandwidth costs without sacrificing viewer experience. The codec supports a broad range of features including film grain synthesis, flexible tiling for parallel processing, content-adaptive resolution switching, and a rich set of intra and inter prediction modes. Hardware decoding support has expanded rapidly across mobile processors, GPUs, and smart TVs, addressing early concerns about computational demands during encoding. AV1 has seen wide adoption from major streaming services for delivering 4K and HDR content, and it serves as the video component of the WebM container for web-based playback. The royalty-free status makes AV1 especially important for open web standards and accessible media distribution.
Initial release: June 25, 2018
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 AV1 to IMA?

IMA ADPCM is a widely used compressed audio format in embedded systems, games, and telephony — offering 4:1 compression with fast decoding.

What opens IMA files?

SoX, Audacity, and many embedded audio systems handle IMA ADPCM. It is common in game audio engines.

How does IMA compress audio?

IMA ADPCM encodes sample differences rather than absolute values, achieving 4:1 compression with simple, fast decoding.

Is IMA quality acceptable?

IMA ADPCM provides reasonable quality for speech and sound effects — a 4:1 compression ratio with some audible loss.

Is my data safe?

AV1 uploads are deleted right after processing. IMA outputs are removed within 24 hours.