TTA to IMA Converter

Encode True Audio as IMA ADPCM format online

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Game Audio

IMA ADPCM is a game audio standard — converting from lossless TTA produces clean game-ready sound assets.

Fast Decoding

IMA decodes quickly on limited hardware — ideal for real-time game audio and embedded applications.

Browser Conversion

No game SDKs needed — our servers handle TTA to IMA encoding entirely online.

How to convert TTA 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

TTA (True Audio) is a real-time lossless audio compression codec developed by Aleksander Djourik, with its origins tracing back to the early 2000s. The format reconstructs the original PCM stream bit-for-bit upon decoding, guaranteeing that no sonic detail is lost during storage or transfer. TTA handles standard CD-quality audio as well as high-resolution content up to 32-bit integer samples, making it suitable for everyday listening and professional archiving alike. Processing speed is one of TTA's defining strengths — the codec achieves fast encoding and decoding without heavy CPU demands, keeping it lightweight even on older hardware. The file structure supports ID3v1, ID3v2, and APEv2 metadata tags, so track information and album art travel with the audio. Hardware support appeared in several portable players, giving TTA a practical edge over some competing lossless formats. The open-source reference implementation ships under the GNU GPL, encouraging community adoption and third-party integrations. While newer codecs like FLAC have captured a larger share of the lossless audio landscape, TTA continues to serve users who value its simplicity and transparent compression.
Developer: Aleksander Djourik
Initial release: 2003
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

What is IMA ADPCM?

IMA ADPCM is a compression standard from the Interactive Multimedia Association — balancing quality and fast decoding for games.

Why convert TTA to IMA?

Games and embedded systems use IMA ADPCM for its simple, fast decoder. Lossless TTA provides clean source audio.

How much does IMA compress?

IMA achieves roughly 4:1 compression — a good balance of size reduction and fast real-time decoding.

What uses IMA?

Video games, interactive kiosks, embedded audio hardware, and multimedia applications use IMA ADPCM.

Is it secure?

TTA uploads are deleted right after processing. IMA results are removed within 24 hours.