Nilfisk-ALTO CLE8.0 Compressor Control, Compressor LED, Attack Control, Release Control

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3.3 Compressor Section

 

12

 

 

 

 

 

 

 

 

 

 

 

4

 

 

30

 

 

0.5

 

0

 

 

 

 

15

70

 

0.3

1.5

 

 

-30

 

+10 2

10

6

 

0.1

3

-10

+10

 

 

 

 

 

-40

+20

1

 

1

150

AUTO

0.05

5

-20

+20

COMPRESSOR(dB)

RATIO(N:1)

 

ATTACK(mSec)

RELEASE(dB/Sec)

OUTPUT GAIN(dB)

 

 

 

11

13

 

 

14

16

 

15

 

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Pic.4: Compressor Section

11. Compressor Control

This control adjusts the threshold level for the Compressor section in the range of -40dB to +20dB. The SKC (Smart Knee Control) is applied to the audio signal, which is a maximum of 10dB above the set threshold. Above such level (10dB) a hard knee compression will be applied.

12. Compressor LED

These LED's will show you the state of the input signal in relation to the threshold level. If the input signal falls below the set threshold level, the left "-" LED will light up. This means that no signal is being compressed. When the input signal reach the set threshold level, the middle LED lights up. This means the compression function hasn't been activated. If the input signal rises above the set threshold level, this signal will be com- pressed and the "+" LED lights up.

13. Ratio Control

The ratio between the input and output level of audio signals exceeding the set threshold level is determined by this control. This control is manually adjustable from 1:1 to :1.

14. Attack Control

This control determines how fast the compressor is to respond to audio signals that will exceed the set threshold. It can be manually adjusted from 1 to 150 milliseconds.

15. Release Control

This control determines how fast is the compressor to return to unity gain when the audio signal falls below the set threshold level. It can be manually adjusted from 0.05 to 5 seconds.

16. Auto Switch

Who needs Attack and release control? Activate this switch and these controls will be deactivated. Attack and release controls will be automatically set by the unit depending on the program material.

17. Output Gain Control

Through this control you can vary the output signal by a maximum of 20 dB. In this way you can recover a level that had been lost because of the compression process.

3.4 Peak Limiter Section

19

+4

+18

0OFF

PEAK LIMITER

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Pic.5: Peak Limiter Section

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Contents CLE8.0 Important Safety Instructions Safety Related SymbolsPower Supply External ConnectionPreface Table of Contents Introduction Concept BehindSome technical stuff More technical stuff about Compressor/Limiters Introducing Audio DynamicsMaster Control Section ControlsMore about noise Expanders and Noise-Gates Take it easy Balanced InputsInput / Output Meter Switch Bypass SwitchSC Filter switch Smart switchCompressor Control Auto SwitchCompressor LED Attack ControlPeak Limiter LED Peak Limiter ControlAC Inlet and Fuse Holder Audio1 EXP/GATE Adjustment Expander/Gate SectionAnother Threshold Control? Output control Mains Connection Installation and ConnectionLine Connection Wiring ConfigurationInsert Leads Insert Points ConnectionInput Technical SpecificationsPhysical Warranty Registration Card WarrantySeikaku Technical Group Limited