Blackmagic Design ATEM Mini Manual De Instalación Y Funcionamiento página 31

Expander/Gate
The first set of dynamics parameters can be switched between expansion and gating.
Expansion emphasizes differences in volume by lowering the level of soft parts of the signal
relative to the level of louder parts. You can use an expander to emphasize the differences
between quiet and loud parts of a track, or to increase the dynamic range of a signal and
minimize unwanted noise.
Gating is like an exaggerated expander, reducing the level or even silencing parts of a signal
that fall below a certain level in order to reduce or eliminate noise in quiet parts of a recording.
For example, a range of 15 to 20 dB can reduce breathing in a vocal track but leaves just
enough to sound natural.
Gating is extremely effective, but it's also very powerful so requires careful attention. If the gate
threshold is set too high it can cause artifacts, such as cutting off the start of a syllable or the
quiet end of a word. You can compensate by reducing the threshold slightly, or by increasing
the attack or release time.
Compressor
Compression lets you reduce peaks in an audio signal, reducing the dynamic range of a signal,
so you can boost the overall level without clipping. This is helpful when you want to make sure
the loud elements in a signal don't diminish the strength of quieter sounds, or to smoothen
changes in audio levels within the signal.
TIP It's a good idea to apply the compressor after you have set the EQ controls.
Make Up
The make up setting lets you increase the overall signal in combination with compression
settings. With loud parts of the audio reduced using compression, you can now use the make
up control to boost the overall sound without clipping.
Limiter
The limiter prevents peaks of the signal from exceeding a set maximum level. A limiter is helpful
to prevent hard clipping. For example, if you set the limiter to -8 dB, the input signal will never
exceed that level. Adjusting the attack, hold and release settings will set how gentle the limiter
affects the signal.
Dynamics Controls Characteristics
Control Minimum
Expander/Gate
Expander Controls*
Threshold -50dB
Range 0dB
Ratio 1.0:1
Attack 0.5ms
Hold 0.0ms
Release 50ms
Default Maximum
-45dB** 0dB
18dB 60dB
1.1:1 10:1
1.4ms 30ms
0.0ms 4s
93ms 4s
Using ATEM Software Control 31