On Thursday 04 July 2002 10:27 am, Brian Becker wrote:
Just as a comment...balanced is required to have a ground and a shield to be defined as balanced. Of course much of the audio gear can survive if the ground and shield are the same signal, but it is not part of the spec and all major recording studios will utilize separate and distinct paths for the ground and the shield to reduce the level of noise to its minimum. I know when I used to deal in a ton of analog phone circuits they were commonly referred to as balanced. Of course these were common UTP phone cables without ground. We merely "balanced" them by adjusting the outbound voltage levels with the inbound voltage levels. This helped eliminate some signal to noise problems as well as assuring that the audio out was "as loud" as the audio in.
Maybe the confusion comes from crossing disciplines. Each industry has its own terms, some of which conflict with other fields. -- Lewis Bergman Texas Communications 4309 Maple St. Abilene, TX 79602-8044 915-695-6962 ext 115