In terms of audio, the compressor is a tool commonly used to decrease the dynamic range (dynamic range) of an audio signal. For example, in a composition of music that we're mixing, vocals that we have very berdinamika, sometimes the pronunciation of lyrics too softly and sometimes pronunciation of lyrics too toned. To minimize the dynamics so that the vocal levels more stable, we can use the compressor. In addition to using the compressor, some prefer using sound engineer fader manually, this technique is commonly referred to as the level of automation. However, some choose to use compressor sound engineer because of its versatility to decrease the dynamic range without having to change the fader manually from each part into another part in a song. Some other sound engineer even use compressor and faders simultaneously to gain maximum control over.
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Some of the basic elements on the compressor are:
Ratio a comparison between dB signal expressed in compressor and signals that come out compressor. A 4: 1 Ratio means that any incoming signal compressor by 4 dB will be reduced so that the signal that goes out compressor stays of 1 dB. On the compressor Ratio can vary from 1: 1 to infinity: 1. The higher the ratio the more signal means the compressor is reduced and the smaller dynamic range so that the audio signal is becoming increasingly stable. Thresold declare dB where the compressor begins to process the incoming audio signal. For example we are setting the 0dB Thresold, then the compressor just started to process the audio signal when an audio signal hits the 0dB. If the audio signal has not touched the 0dB then compressor not working. The lower the thresold then the faster the compressor starts to work. The Gain Reduction or also called attenuation stated number of dB signal which has been compressed, the higher the gain reduction, then the more the signal is compressed. The Gain reduction is too much will led to the signal to be compressed and voice-over sound like a squashed. Attack States needed time compressor (usually in units of ms) for processing an audio signal. If we attack setting time of 0 ms then no attack at all because of the incoming signal is directly processed by the compressor and causing sound will sound very dull. If sound is heard through the compressor, blunt might attack his time too fast, try to slow down the attack time Release stating the time in units of ms needed compressor (usually in units of ms) to compress before removing the effects of compressor to compress it back then. The Release time is too fast will cause the effects of pumping (pumping), the release time is too slow will cause compressor not working to the maximum because of the signal will be compressed before it is discharged again. The combination of attack and release time is essential to generate the character dynamics as desired. The Gain also known as output, used to compensate the gain is reduced by the process of compression. For example we compress the vocal with the gain reduction of 4 dB. Then the resulting audio signal will sound 4 dB weaker than the audio signal before it is compressed. To restore the gainnya as it was before, then we increase the gain or the output of 4 dB. How Setting Compressor?After learning about the functioning of a general overview of each knob on the compressor, the next step is to try to put into practice the theories have gained into real applications. But with the number of knob is there, sometimes making us confused as to where we need to start setting the compressor and how.
Look forward to Understanding Compressor part 2 where I will try peeling one technique which hopefully can help speed up your learning curve in understanding the compressor
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