hldj.org

Anyone know how to convert the sound files located within the .gcf of Valve games. In particular, I'm trying to get the Fact Sphere sounds from Portal 2.

I had assumed that it would work naturally, since the files are already in wav format; however, the sound appears as nothing but noise in the game and audio editors . . . but works fine in any media player.

Any help?

You need to convert them to the proper format (note format and file extension are different things), see the sticky/manual.