Method and apparatus for individual control of audio to loudspeakers located from a central control

The method of controlling remote activation of a central stereo system by detecting a change in to a transmission means which transmits an audio signal to a loudspeaker which is located remote from the central stereo system, said loudspeaker having volume control means, said method comprising the steps of:

• generating a sense signal within said transmission means;
• and
• comparing said sense signal a reference signal and upon noting a change, the audio signal to said loudspeaker is activated with the activation being initiated at the location of said loudspeaker.

In combination with a sound source which has at least one loudspeaker located remote from a central control, said loudspeaker having a volume control, an audio signal to be transmitted on a transmission line from said central control to said loudspeaker, the improvement comprising:

• a sense signal being added to said transmission line, said sense signal is compared to a reference signal and a change in the position of said volume control will result in an activation of said audio signal to said loudspeaker with this activation being initiated at the location of said loudspeaker.