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BnkExtractor

Wwise

BnkExtractor is a library for parsing and extracting content from Wwise soundbank files. It handles the proprietary .bnk container format used by Audiokinetic Wwise and extracts .wem audio files embedded within. The tool is designed for reverse engineering workflows, asset recovery, and technical analysis of Wwise-integrated games. It provides programmatic access to soundbank structures without requiring the original Wwise project files.

Rewwise

Wwise · Standalone

Rewwise is a CLI toolset for extracting and repacking Wwise .bnk soundbanks from FromSoftware titles (Elden Ring, Armored Core 6, Nightreign). It converts a .bnk file into a folder of .wem audio files plus a soundbank.json describing the event routing, bussing, music looping, and other bank metadata. Editing the folder contents and dragging it back onto the tool recreates a .created.bnk ready for use with ModEngine2. The extracted .wem files can be played or converted with vgmstream. Injecting custom audio requires encoding to .wem first, which still requires Wwise Studio itself. The soundbank.json gives readable access to the internal Wwise object graph, making it useful for understanding how audio events are wired without a full Wwise project.

Diesel Wwise Soundbank Version Converter

Wwise · Standalone

A .NET library and CLI tool for reading and converting Wwise soundbank (.bnk) files across the three Wwise versions found in Diesel engine titles: version 88 (2013), 113 (2015), and 145 (2022). It parses the major section headers—BKHD, STMG, DATA, DIDX, HIRC, ENVS, STID—and within HIRC handles a broad set of object types including Actions, Actor Mixers, Attenuations, Audio Devices, Buses, Events, FX Share Sets, Layer Containers, Music Random Sequence Containers, Music Segments, Music Switches, Music Tracks, Random Sequence Containers, Sounds, and Switch Containers. The converter migrates soundbanks from an older version to a newer one so assets authored against an older Wwise SDK can be loaded by a newer Diesel build. The library exposes an in-memory object model inspectable via any IDE's object inspector, and an accompanying ImHex pattern is provided for raw binary exploration. Format reading was written using bnnm's wwiser as reference.

NA2FLAC Android

Standalone

NA2FLAC Android is the official Android port of NA2FLAC, written in Kotlin for ARM64 devices running Android 8.0 or newer. It scans a folder of Nintendo audio assets and converts them to FLAC using bundled vgmstream and FFmpeg. It handles the same formats as the desktop version (AST, BRSTM, BCSTM, BFSTM, BFWAV, BWAV, SWAV, STRM, LOPUS, IDSP, HPS, DSP, ADX, MP3, OGG), merges split _l/_r stereo files, and falls back to WAV for files above 8 channels. All dependencies (vgmstream, ffmpeg, ffprobe) are bundled in the APK, so no separate installs are needed. This is the mobile counterpart to the Windows NA2FLAC desktop app; use it when you need to convert assets directly on a phone or tablet rather than on a PC. Used for pulling audio out of Nintendo titles for lossless archival or DAW-ready output on a mobile device. As with the desktop build, the bundled FFmpeg is GPL-licensed while NA2FLAC Android itself is MIT.