Other users triggering voice activation?

[Icebird]

Tried TeamSpeak with a group of 5 yesterday, and some users were reporting an "echo" effect. It looked like the problem was that when someone else spoke, the sound (and game noise from World of Warcraft) was triggering the voice activation at my end and getting "re-broadcast" to the other users, causing the echo. Switching to "Push to Talk" mode stopped the unintentional re-broadcasting but doesn't seem to address the underlying issue of what was causing the problem in the first place.

Given the number of places to adjust audio settings, I wasn't sure which settings to suggest people change.

In the "Record" section of the Windows Volume Control, I think "Stereo Mixer" (the equivalent to "What You Here") is checked. I did try unchecking that and trying some of the other options (such as "Mic", "CD-Audio","Line-In") although none of them seemed to respond at all (which seems a little odd). I think M&Ms post was recommending changing from the default sound mix to something else but I'm not sure.

I'm running the server on my computer. The audio card is a Creative SB Live. Hardware is a red jack/green jack headset with mic.

Any suggestions welcome. (I'd like to be able to use voice activation again).

[m&m's]

removing the what you hear option retransmits "what your pc hears ie game sounds , cd's etc.. as in this post http://www.teamspeaktalk.com/showthread.php?t=119

all users need to remove the what you hear or you will get the echo when there using ptt it will send the sound from the speakers or game etc with there voice from mic ..
your on the right track !