Extract text from Game audio files (NUS3AUDIO)
To convert NUS3AUDIO Audio files to another format, you need VGMStream or other Game software.
To convert other file formats to the "Nintendo Switch Audio Container" file type, you need software like VGMStream or a similar tool.
The .NUS3AUDIO file is a proprietary Namco Universal Sound 3.0 Audio container. It is primarily used to store music, voice lines, and sound effects in Nintendo Switch games, most famously in Super Smash Bros. Ultimate.
Opening this file outside of the game environment is difficult. It is a proprietary game asset, meaning standard media players like VLC or Windows Media Player cannot read it. The file often bundles multiple proprietary audio streams (like IDSP or .LOPUS) into a single archive, which requires a specialized $60 game or dedicated modding software to access properly.
Because .NUS3AUDIO is a closed, proprietary format, standard online audio converters fail to process it. They expect standard audio headers, not a complex game archive structure. Users typically need to convert these files to standard formats like WAV, MP3, or OGG for playback, video editing, or ringtones. Extracting the raw audio streams often requires reverse-engineered community tools like VGMStream. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your NUS3AUDIO file, detects the exact format, and lets you read the text inside.
Users also converted BWAV, BCSTM, NUS3BANK, BRSTM, MP3, IDSP, BFSTM, RAR, ZIP, WAV, TXT, RVZ and MP4 files.
If you want to convert NUS3AUDIO file to MP3, you can use VGMStream or similar software from the "Game Audio Container" category. In the File menu, look for Save As… or Export….
To convert files to NUS3AUDIO, try VGMStream or another comparable tool in the "Game Audio Container" 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 NUS3AUDIO converter.