| 摘要 |
In prior art acoustic reproduction systems to the input of which signals are fed from tape players, record players, radio receivers and the like, listening enjoyment may be adversely affected by fast readjustment of the dynamics. It is proposed in the invention to limit the dynamics of an amplifier connected to a circuit of the invention only after a predetermined time after the level of an input signal has been exceeded. There is a time function element (16) to which is fed a signal which represents a measure of the difference between a predetermined level (VR) and the actual level of an input signal. On the other hand the time unit (16) causes the dynamics to be limited by controlling switching means (17) only after a predetermined time. It is thus possible to maintain linear amplification in cases of only brief excessive rises in the input signal. In the reproduction of audio signals, this has the special advantage that listening enjoyment is not adversely affected by only brief increases or excessive increases in the level. |
