Circuit for dynamic compression or expansion in a useful-signal path

摘要

Circuit for dynamic compression or expansion in a useful-signal path with an FET (F1), controlled by a control voltage, in the useful-signal path. The output of the control-voltage generator (8) is connected to the output electrode of the FET via an inverting alternating-voltage amplifier (T1). This avoids interfering signal discontinuities (S) in the useful-signal path when there are discontinuities in the control voltage. <IMAGE>