W64 to IMA Converter

Online tool to convert W64 audio into IMA

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Universal Access

Whether you are on a PC, Mac, Chromebook, or smartphone, the W64 to IMA converter works directly in your browser.

Remote Conversion

The heavy lifting of converting W64 to IMA runs on our servers, keeping your machine responsive throughout.

Faithful Conversion

Audio integrity is preserved when moving from W64 to IMA. The converter handles sample rates and bit depths with care.

How to convert W64 to IMA

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

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

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

About formats

W64 (Wave64) is a 64-bit audio container originally designed by Sonic Foundry — creators of Sound Forge — and later maintained by Sony after acquiring Sonic Foundry's desktop software division in 2003. The format directly addresses the 4 GB file-size ceiling imposed by Microsoft's 32-bit RIFF/WAV specification, a limitation that becomes problematic during long recording sessions, multi-channel captures, or high-sample-rate productions. W64 achieves this by extending chunk identifiers and size fields to 64 bits, using GUIDs instead of four-character codes. This structural change permits files to reach sizes measured in exabytes, effectively removing any practical storage constraint. The format supports arbitrary sample rates, bit depths, and channel configurations, making it well suited for film scoring, live concert recording, and scientific data acquisition. Sound Forge, Audacity, and other professional digital audio workstations provide native W64 support for seamless import and export. For engineers and producers who routinely work with long-form, high-fidelity material, W64 offers the reliability and simplicity of WAV without the frustrating size restriction.

Developer: Sonic Foundry

Initial release: 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.

Developer: Interactive Multimedia Association

Initial release: 1992

Frequently Asked Questions

Why convert W64 to IMA?

W64 was built for professional post-production needs. Converting to IMA makes your audio portable and easy to share.

What opens IMA audio?

IMA can be opened with SoX, Audacity, IMA-compatible audio processors. Most modern audio applications handle this format without issues.

How is audio fidelity handled during conversion?

The converter preserves maximum fidelity. If IMA is lossless, no data is discarded. Lossy codecs apply minimal perceptible compression.

Does the converter support batch W64 conversion?

Absolutely. You can upload a batch of W64 files and convert them all to IMA together, saving significant time on large collections.

Are my W64 uploads kept private?

Yes. Uploaded W64 files are deleted right after conversion, and the IMA output is removed from our servers within 24 hours automatically.

How long does W64 to IMA conversion take?

Most W64 files convert to IMA within seconds. Larger recordings may take a bit longer, but our cloud servers process audio quickly.

Related Conversions

W64 to MP3

W64 to WAV

W64 to AAC

W64 to AIFF

W64 to M4A

W64 to CAF

W64 to FLAC

W64 to GSM

W64 to AC3

W64 to OGG

W64 to AMR

W64 to M4R

W64 to WMA

W64 to DTS

W64 to OPUS

W64 to SPX

W64 to WV

W64 to VOC

W64 to TTA

W64 to RA

W64 to MP2

W64 to OGA

W64 to PVF

W64 to PRC

W64 to MAUD

W64 to 8SVX

W64 to AMB

W64 to AU

W64 to SND

W64 to SNDR

W64 to SNDT

W64 to AVR

W64 to CDDA

W64 to CVS

W64 to CVSD

W64 to CVU

W64 to DVMS

W64 to VMS

W64 to FAP

W64 to PAF

W64 to FSSD

W64 to SOU

W64 to GSRT

W64 to HCOM

W64 to HTK

W64 to IMA

W64 to IRCAM

W64 to SLN

W64 to SPH

W64 to NIST

W64 to SMP

W64 to TXW

W64 to VOX

W64 to WVE

W64 to SD2

Specific converters

MP3 to IMA

WAV to IMA

MP4 to IMA

M4A to IMA

OGG to IMA

WMA to IMA

AAC to IMA

AVI to IMA

VOX to IMA

AMR to IMA

WEBM to IMA

AIFF to IMA

WMV to IMA

WVE to IMA

FLAC to IMA

MKV to IMA

AU to IMA

OPUS to IMA

3G2 to IMA

3GP to IMA

AAF to IMA

ASF to IMA

AV1 to IMA

AVCHD to IMA

CAVS to IMA

DIVX to IMA

DV to IMA

F4V to IMA

FLV to IMA

HEVC to IMA