Convert ADX to WAV
Max file size 100mb.
ADX vs WAV Format Comparison
| Aspect | ADX (Source Format) | WAV (Target Format) |
|---|---|---|
| Format Overview |
ADX
CRI ADX (ADPCM)
CRI ADX is a proprietary lossy audio codec developed by CRI Middleware for use in video games. Based on ADPCM (Adaptive Differential Pulse-Code Modulation), ADX provides efficient compression optimized for real-time game audio playback. Widely used by SEGA, Capcom, Konami, and Bandai Namco, ADX supports seamless looping and streaming — critical features for interactive entertainment audio. Lossy Legacy |
WAV
Waveform Audio File Format
Uncompressed audio container format developed by Microsoft and IBM in 1991. WAV stores raw PCM samples, preserving every detail of the original recording with zero quality loss. The de facto standard for professional audio production, recording, and mastering. Lossless Standard |
| Technical Specifications |
Sample Rates: 22.05 kHz, 44.1 kHz, 48 kHz Bit Rates: Variable, typically 40–160 kbps Channels: Mono, Stereo Codec: CRI ADPCM (4-bit) Container: ADX (.adx) |
Sample Rates: 8 kHz – 192 kHz+ Bit Depth: 8, 16, 24, 32-bit (int/float) Channels: Mono, Stereo, Multichannel (up to 18) Codec: PCM (uncompressed) Container: RIFF/WAVE (.wav) |
| Audio Encoding |
ADX uses 4-bit ADPCM encoding, predicting each sample from previous values and storing only the difference, achieving roughly 4:1 compression: # Encode WAV to ADX ffmpeg -i input.wav -codec:a adpcm_adx \ output.adx # Specify sample rate ffmpeg -i input.wav -codec:a adpcm_adx \ -ar 44100 output.adx |
WAV stores raw PCM samples — each audio sample is written directly without compression: # Decode to WAV (16-bit, 44.1 kHz) ffmpeg -i input.mp3 -codec:a pcm_s16le \ -ar 44100 output.wav # High-resolution WAV (24-bit, 48 kHz) ffmpeg -i input.mp3 -codec:a pcm_s24le \ -ar 48000 output.wav |
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| Version History |
Introduced: 1996 (CRI Middleware) Current Version: ADX2 (CRI ADX2/Atom) Status: Active in game industry, proprietary Evolution: ADX (1996) → ADX2 (2012, expanded codec support) |
Introduced: 1991 (Microsoft/IBM) Current Version: RIFF WAVE, RF64 (>4 GB extension) Status: Industry standard, actively used Evolution: WAV (1991) → BWF (1997) → RF64 (2007) for large files |
| Software Support |
Game Engines: CRI ADX2, Unreal Engine (via plugin), Unity (via plugin) Media Players: VLC, foobar2000 (with vgmstream plugin) Converters: FFmpeg, vgmstream, CRI tools Platforms: PlayStation, Xbox, Nintendo, PC, Dreamcast, Saturn Development: CRI Atom Craft, CRI Sofdec SDK |
Media Players: VLC, WMP, foobar2000, AIMP DAWs: Pro Tools, Logic Pro, Ableton, FL Studio, Reaper, Audacity Mobile: iOS, Android — native support Web Browsers: Chrome, Firefox, Safari, Edge Broadcast: Adobe Audition, Hindenburg, SADiE |
Why Convert ADX to WAV?
Converting ADX to WAV transforms game-specific ADPCM audio into a widely compatible format suitable for everyday listening, editing, and professional workflows. ADX files are designed for video game audio playback with features like seamless looping and real-time streaming, but they are not supported by standard media players or audio editing software. By converting to WAV, you unlock the ability to play, edit, and share your audio across any platform.
ADX uses 4-bit ADPCM lossy compression optimized for game consoles, which sacrifices some audio fidelity for efficient real-time decoding. WAV provides a lossless container that preserves the decoded audio without any further quality loss. While the original ADPCM compression artifacts remain, converting to WAV ensures no additional degradation occurs during subsequent editing or format conversion operations.
Game audio enthusiasts and modding communities frequently need to extract music and sound effects from games that use CRI Middleware's ADX format. Whether you are creating a soundtrack compilation from SEGA or Capcom titles, preparing game audio for a remix project, or simply want to listen to your favorite game music on a standard audio player, converting ADX to WAV bridges the gap between proprietary game audio and universal media playback.
Keep in mind that ADX audio was originally compressed with ADPCM for game use, so the converted WAV file will reflect the quality of the ADX source rather than studio-original quality. For archival purposes, it is best to convert at the source sample rate (typically 44.1 or 48 kHz) to avoid unnecessary resampling. The conversion process is fast since ADX decoding requires minimal CPU processing.
Key Benefits of Converting ADX to WAV:
- Universal Playback: Play game audio on any media player and device
- Editing Capability: Edit and mix extracted game audio in any DAW
- Format Compatibility: Access WAV's wide ecosystem of tools and hardware
- Sharing Made Easy: Distribute game music in a universally recognized format
- Quality Preservation: Maintain maximum quality from the decoded ADX source
- Metadata Support: Add tags, album art, and track information to the converted files
- Production Workflow: Use game audio as source material for remixes and compositions
Practical Examples
Example 1: Extracting Game Soundtrack for Personal Listening
Scenario: A gamer wants to listen to the soundtrack from a SEGA Dreamcast game that stores its music as ADX files. They need to convert the extracted audio to WAV for playback on their phone and computer.
Source: stage_theme_01.adx (4 min, 44.1 kHz, stereo, 1.2 MB) Conversion: ADX to WAV Result: stage_theme_01.wav (40 MB) Workflow: 1. Extract ADX files from game data using vgmstream 2. Convert ADX to WAV for standard playback 3. Add metadata tags (track title, game name, composer) 4. Import into music library for everyday listening 5. Create playlist of favorite game tracks
Example 2: Game Audio Remix and Music Production
Scenario: A music producer wants to sample and remix audio from classic Capcom fighting games stored in ADX format. They need high-quality decoded audio for their DAW project.
Source: character_theme.adx (2 min, 44.1 kHz, stereo, 640 KB) Conversion: ADX to WAV Result: character_theme.wav (20 MB) Benefits: - Decoded audio ready for DAW import and sampling - No proprietary game audio plugins required - Compatible with Ableton, FL Studio, Logic Pro - Can apply effects, time-stretch, and pitch-shift freely - Clean source for remix production workflow
Example 3: Game Preservation and Archival
Scenario: An archivist is preserving audio from retro console games and needs to convert ADX files to a long-term storage format that is widely supported and well-documented.
Source: boss_battle_music.adx (6 min, 44.1 kHz, stereo, 1.8 MB) Conversion: ADX to WAV Result: boss_battle_music.wav (60 MB) Archival considerations: - Widely supported format for long-term preservation - Decoded from proprietary format to open standard - Original ADX loop points documented in metadata notes - Compatible with digital preservation repositories - Ensures accessibility for future playback systems
Frequently Asked Questions (FAQ)
Q: Does converting ADX to WAV improve audio quality?
A: No — the conversion decodes the ADX ADPCM audio and re-encodes it as WAV. The resulting quality is limited by the original ADX compression. However, converting to WAV gives you access to better playback support, editing tools, and metadata features that ADX lacks.
Q: What is the ADX format used for?
A: ADX (CRI ADX) is a proprietary audio codec by CRI Middleware used primarily in video games. It features ADPCM-based lossy compression, built-in loop points, and real-time streaming capabilities. SEGA, Capcom, Konami, and Bandai Namco games commonly use ADX for music and sound effects.
Q: Can I preserve loop points when converting ADX to WAV?
A: Standard audio formats like WAV do not natively support ADX's loop point markers. The loop information is lost during conversion. If you need loop functionality, document the loop start and end sample positions before converting, and implement looping in your playback application or DAW.
Q: How do I extract ADX files from game data?
A: Tools like vgmstream, CRI File System tools, and QuickBMS can extract ADX audio from game archives. Once extracted, use FFmpeg or our converter to transform ADX files to WAV or other standard formats for playback.
Q: What sample rate should I use for the converted WAV file?
A: Use the same sample rate as the original ADX file (typically 44.1 kHz or 48 kHz) to avoid unnecessary resampling artifacts. Upsampling an ADX file to a higher rate does not improve quality — it only increases file size.
Q: Is there any quality difference between different ADX files?
A: Yes — ADX files can vary in quality depending on the sample rate, number of channels, and the encoding settings chosen by the game developer. Higher-budget games often use higher quality ADX encoding. The bit rate typically ranges from 40 to 160 kbps.
Q: Can I batch convert multiple ADX files to WAV?
A: Yes — you can upload multiple ADX files to our converter and they will all be processed and converted to WAV. For command-line batch conversion, FFmpeg can process entire directories of ADX files using scripting.
Q: Will the converted file work on my mobile device?
A: WAV is widely supported on modern smartphones and tablets, so the converted file should play without issues on iOS and Android devices. The original ADX format is not supported by standard mobile media players, making conversion necessary for mobile playback.