Extract text from Game audio files (ADPCM)
To convert ADPCM Audio files to another format, you need FMOD Studio or other Audio software.
To convert other file formats to the "Compressed Audio Stream" file type, you need software like FMOD Studio or a similar tool.
ADPCM files contain audio data compressed using Adaptive Differential Pulse-Code Modulation. While technically a compression algorithm rather than a standard container, files with the .ADPCM extension are frequently encountered as audio assets in video game development (using middleware like FMOD Studio) or as extracted data from consoles like the Nintendo Wii.
The main downside with this format is its lack of standardization. Many .ADPCM files are "raw" streams that lack the file headers found in standard WAV files. Consequently, media players like VLC media player or Windows Media Player often fail to open them, or play them as garbled static, because they do not know the sample rate or channel count. Additionally, as a legacy lossy compression method designed to save RAM on older hardware, the audio quality is inherently lower than modern formats.
To make these files usable, the most practical workflow is converting them to WAV (PCM). This adds the necessary header information, ensuring compatibility with audio editors like Adobe Audition or Audacity. For archiving game soundtracks or sharing online, converting to MP3 or OGG is ideal.
Convert.Guru analyzes your ADPCM file, detects the exact format, and lets you read the text inside.
Users also converted WAV, MP3, ADP, PCM, AVI, FLAC, OGG, RAW, BIN, ACT, MP4, TXT and FSB files.
If you want to convert ADPCM file to WAV, PCM, MP3, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC or APE, you can use FMOD Studio or similar software from the "Game Audio Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to ADPCM, try FMOD Studio or another comparable tool in the "Game Audio Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ADPCM converter.