For issues like this, a from the "Ground up" is a good place to start.
Is the sound card attached properly?
Are the speakers attached properly?
Do they play sounds properly for other applications?
Are they muted?
Do you have a mute button or feature that may be inadvertently triggered?
Any issues with sound drivers? Do they need an update?
Try unplugging your microphone. (Some features will mute your speakers when it senses Microphone input to prevent feedback)
Assuming all of that is working, some things to try:
(Windows Vista/7) Turn off "Sound Enhancements".
Adjust Mass Effect 3 sound settings. I know there is a feature where it tries to keep the volume output at a rather constant level, you can set it to "None", "Low", or "High". I believe I use "High".
I've also noticed that the opening is rather silent, the rest of the game's Audio is fine/good, except when a Mass Relay cut-scene occurs, then it is really loud. I've assumed that the opening silence is an Origin issue, as I don't hear things while the Origin notifications are present.
Try playing with those settings and see if they change anything. If you have no sound, try a Mass Relay jump and see if that works.
Modifié par Nasulprak, 09 mars 2012 - 10:52 .