| 摘要 |
In a method for presenting different apparatus for transmitting acoustic signals, coupled with different devices for converting the signals into audible vibrations and, if necessary, with ancillary apparatus connected between them, each device and, if necessary, each ancillary apparatus is intended to be freely assignable to each apparatus. In a corresponding switching installation, each apparatus (3) and each device (4) and, if necessary, each ancillary apparatus (6, 10) is connected to a monitoring device (1) which, controlled by a control console (8), connects each apparatus (3) to each device (4), if necessary via each ancillary apparatus (6). <IMAGE>
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