Tendzone TYCHO T 1212/CA - Manual (Page 38)

the signal is greater than “Threshold”.
- Level attenuation (Reduction): level after being processed by the module for a user’s view.
2.6 SPL (Sound Pressure Level)
Automatic Noise Canceller module according to the ambient noise level automatically adjusts input signal level, input
signal level increases as the ambient noise increased.
Such as a sports stadium, the appreciation in the audience concentrate on the game, the venue environment quieter, the
sound output does not need at this time a great announcer, but when the audience cheers or warm atmosphere when the
announcer's voice output will large, so as not to drown the voice of the audience. ANC role is to specify the output will
increase as the ambient noise increases, when used as a monitor, monitor the surrounding noise, the other MIC as a
working microphone, for voice input.
Figure 34
1. The "on" / "off" button (the number of channels and devices are the same number of physical input channels), choose
to work the way that the signal channel input channel "open" (the broadcast channel), the channels will be automatically
in the main mixer in the SPL signal to open, in the other inputs can not be mixing process.
2. As shown in “sense input” in the menu, select the microphone that monitors all the way as the input channel.
- Gain display: top window shows the gain through the module (assuming there is no bypass).
- Bypass: press the button to bypass the module and the input will be sent to the output without change.
- Maximum Gain: the maximum allowable signal gain in dB, it defines the upper limit of output volume when the
ambient sound is very loud. It can be adjusted by the fader, or click on the file to enter a dialog box and directly define a
value. This value cannot be less than the minimum gain.
- Minimum Gain: it defines the most insignificant sound output when the ambient is very quiet. The fader can be
adjusted, or click on the file to enter a dialog box and directly define a value. Step for fine-tuning 0.01 dB. This value
cannot be more than the maximum gain.
- Gain Ratio: control the gain changes relative to the change of peripheral level. If the value is set to around 1.0:1, it
means the level increases / decreases by 1dB, SPL gain will increases / decreases by 1dB. A higher value, such as 2.0:1,
means as compared with the increase of peripheral level, the gain increases even more and is often used in noisy
environments. A lower value, such as 0.5:1, means the increase of peripheral level by 1dB, the gain only increases /
decreases by 1dB and thus the effect is less obvious than before.
- Speed: control the change rate of module, it shows in seconds. longer time means when the peripheral level changes,