Im going to assume this is not the games fault, but more of a software (Not hardware) issue on my end. Im using Logitech speakers and a subwoofer (Not sure of model but very generic) with realtek HD audio. Ive seen a few posts here about it on google but no one answered.
Post your specs.
Are your drivers updated?
Have you tried to modify your audio configuration to simple stereo(no subwoofer)?
Sounds like an issue with Source 2007.
I remember when I was trying the other mod I had the same issue. I googled it and I read up that installing HL2E2 might possibly fix the issue but I was too lazy. Im gonna try that now
Gonna try the audio configs too
Problem solved. I seriously dont know what I did, I launched the realtek audio manager and it started working after
make sure you got a sound car and updated it