If you have everything set up correctly (4 basic checks if Voicemod doesn't work article) but cannot connect your application or game to Voicemod it could be a problem related to the Windows mixer.
Make sure you have the last Voicemod version (188.8.131.52 or 184.108.40.206), you can download it here: www.voicemod.net.
After that, follow the next steps to reset it:
1.- Open Voicemod.
2.- Go to the Voicemod Settings->Advanced settings tab.
3.- Disable the anti-popping mode.
4.- Disable the exclusive mode.
5.- And without closing Voicemod (this is very important), resets the Windows mixer:
- Open Start -> Settings
- Go to "System":
- Click on "Sound".
- Look for "Advanced sound options" and go to "App Volume and device preferences":
- Here, click on "Reset":
If you have followed the previous steps and it is not fixed might be your Line or Voicemod microphone is muted.
Go again to Sound options:
- Locate Line in Playback tab
- Properties > Levels
- Make sure it is not muted.
Same instructions in the Recording tab. Make sure your Voicemod microphone is not muted.