To fix issues involving the VoxWare MetaSound Audio Codec (often identified as Audio Codec Tag 74 or 75), which typically manifest as a complete lack of audio or an “Unsupported Format / undf” error when trying to play older multimedia files, follow the proven methods below. Method 1: The Modern K-Lite Workaround (Recommended)
Installing the standalone, legacy VoxWare codec can crash modern versions of Windows. The cleanest and safest method is to handle it via a modern codec pack.
Download and install any version from the K-Lite Codec Pack (Basic edition or higher).
Open the Codec Tweak Tool, which is bundled directly with the K-Lite installation.
Locate the Win32 Decoders or DirectShow Filters tree section.
Find the entries labeled VoxWare or MetaSound and check the boxes to enable them.
Click Apply and restart your media player. The audio will now decode natively. Method 2: Fix the Legacy “No Install Option” Error
If you must install the original VoxWare MetaSound Audio CoDec 1.6.0.17 standalone setup file and find that right-clicking the .inf file gives you no option to install, the zip directory structure is blocking Windows. Extract the downloaded codec zip folder. Cut or copy the main vox folder containing the codec files. Paste it directly into your root directory: C:.
Open the folder from C:, right-click the installation file, and the Install option will now appear and execute correctly. Method 3: Use a Self-Contained Media Player
If you do not want to install system-wide codecs, you can bypass the error entirely by using a player that uses its own internal library to handle obscure audio tags.
Download and use VLC Media Player or GOM Player, which both have broad, built-in support for vintage audio formats.
If you are dealing with a specific file that still won’t play after trying these steps, let me know what media player you are using or if you see a specific error code (like 0x0075 or undf) so I can pinpoint the exact fix. VoxWare MetaSound Audio CoDec 1.6.0.17 – Free-Codecs.com
Leave a Reply