Convert OGG to FSB

A game built with an older FMOD runtime may require an .fsb sound bank instead of a standalone .ogg file. Creating a usable bank requires the matching FMOD project or SDK, not a filename change or a general audio converter.

What the OGG format is

.ogg usually identifies an Ogg container carrying Vorbis audio, although Ogg can also contain other codecs. Vorbis is lossy and is commonly used for music, dialogue, sound effects, podcasts, and game assets because it produces smaller files than uncompressed PCM audio.

Audacity, FFmpeg, VLC, digital audio workstations, and game-development tools can create or export Ogg Vorbis files. An OGG file may be a source asset for an FMOD project, a file extracted from a game, or ordinary media intended for playback rather than bank creation.

What the FSB format is

FSB means FMOD Sound Bank. It is an FMOD runtime bank that can contain one or more encoded sounds together with bank and playback information. It is not a general-purpose audio container interchangeable with WAV or OGG.

FSB was used by older FMOD Designer and FMOD Ex workflows, particularly in games that expect legacy FMOD banks. A bank can group multiple effects or music tracks and encode them with a codec selected for the target platform. The required FSB generation, codec, metadata, and bank structure depend on the FMOD runtime used by the application.

How to create an FSB from OGG

1. Identify the target runtime. Inspect the game files, executable, existing banks, or original project to determine whether it uses FMOD Designer, FMOD Ex, or FMOD Studio, and determine the expected bank version, platform, filename, codec, and channel layout.
2. Use the corresponding FMOD tools. Open a legacy project with the matching FMOD Designer or FMOD Ex SDK. For a current FMOD Studio project, use FMOD Studio; its normal build output is a .bank file rather than a standalone FSB.
3. Import the OGG into the project’s audio or sample browser. In a legacy project, add the sample through the project’s sound-bank management interface and assign it to the required bank.
4. Select the target platform and the codec settings required by the application. Depending on the FMOD generation, available codecs may include Vorbis, PCM, or platform-specific formats. Do not assume that the codec used by the source OGG is the correct bank setting.
5. Build or export the bank with the project’s Build, Build Banks, or equivalent command. Legacy SDKs may include fsbankcl.exe, a command-line bank builder; use the syntax and configuration files documented for that exact SDK version.
6. Test the generated bank in the original application. The application may also require event metadata, a particular bank name, encryption, a companion file, or a matching FMOD runtime. Placing an FSB beside existing game files does not make it compatible.

FSB Extractor is not a conversion tool. Utilities such as FSB Extractor and vgmstream are primarily used to inspect or extract audio from existing FMOD banks. They cannot generally package an arbitrary OGG into a valid bank for an unknown game.

Online and desktop alternatives

General-purpose online services such as CloudConvert or Convertio can convert OGG to WAV, MP3, or other ordinary audio formats when the destination program needs an audio file rather than an FMOD bank. They do not normally produce a game-compatible FSB because FSB creation requires FMOD-specific bank metadata and runtime settings.

For an ordinary audio conversion, desktop tools such as FFmpeg or Audacity avoid upload limits and keep proprietary assets on the local machine. For example, this FFmpeg command decodes OGG to uncompressed WAV:

ffmpeg -i input.ogg -c:a pcm_s16le output.wav

Use the WAV only where the destination accepts a normal audio file. It is not a substitute for rebuilding the required FMOD bank.

Quality and compatibility limits

Vorbis OGG is already lossy. Encoding it again as Vorbis inside an FSB can add another generation of compression artifacts, so use the original WAV or another lossless source when available. Converting to WAV first does not restore quality.

Changing .ogg to .fsb changes only the filename and leaves the file unusable as a sound bank. An FSB can contain multiple sounds and FMOD-specific metadata, so replacing one entry may require a compatible asset editor and can invalidate the bank.

Matching the original FMOD generation, bank format, codec, sample rate, channel layout, platform settings, bank name, and project structure is often more important than the input extension. FMOD Studio cannot necessarily open or rebuild a legacy FSB without the original project or compatible source assets.