Shotcut reduce audio volume3/21/2023 ![]() As you can see in the figure, the sign completely retains its shape. So, as long as there is no overflow, AGC does not change the signal, and as soon as the signal exceeds the maximum level, a correction is made, which changes the signal so that its level does not exceed the maximum. This requires an Automatic Gain Control (AGC) system that corrects the current signal level. Its essence is to automatically reduce the signal level so that there is simply no overflow. ![]() With a slight overflow, the clipping is almost invisible to the ear, however as the level increases it appears as ‘sand’ in the sound.Ī more complicated way, but also more effective, is the limitation of the signal. The simplest way to solve this defect is to cut the signal (clipping), that is, where the amplitude of the signal exceeds the limits, we ‘cut’ it (see figure). ![]() ![]() If the overflow is not monitored, then the amplitude value takes on almost random values (see figure) and this leads to very noticeable frequent clicks. If we multiply the signal by too large a number, an overflow may occur. ![]()
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