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(C) TBProAudio 2018 

Page 8 of 9 

 

6.6.10.1

 

Auto Release 

Release time is calculated program dependant, 125dB/s 

6.6.11 

Makeup Gain 

Adjust the output level of the compressor in dB, -24dB - +24dB, in 0.1dB steps 

6.6.11.1

 

Auto Makeup Gain (AMG) 

If switched on makeup gain is calculated ratio dependant 

6.6.11.2

 

Set Makeup Gain 

Sets makeup gain so that output level reaches 0dBFS. Hold shift key to reach -0.1dBFS 

6.6.12 

Dry/Wet 

This control mixes the dry signal with the wet (compressed) signal, 0 (dry) - 100 (wet) 

6.6.13 

Look Ahead 

Main/Detector signal is "pre-delayed" in order to let compression start "earlier", 0 ms - 3000 
ms, in 0.001ms steps 

6.6.14 

Max Gr 

Limit maximum gain reduction. This is very useful for vocal compression, just to avoid over 
compression. 
-96 - 0dB, in 0.1dB steps 

6.7  Meter 

 

Meters for main signal (Inp), detector signal (Det), output 
(Out) and gain reduction (GR). 
 
LED signal meter range is from -60dBFS to +12dBFS, in 3dB 
steps.  
LED gain reduction meter is from -60dB to 0dB, in 3dB steps. 
Value below meters show maximum value. 
If signal clips (above 0dBFS) top LED lights red. 
Click on the meter resets max. values and heat-maps in the 
scope display. 
 
 

6.8  Scope 

6.8.1  Gain Transfer Graph 

 

 
This display show the current gain transfer curve (white line), 
current threshold value (blue line), maximum main signal 
level (red area) and current main signal level (light red area). 
Additionally heat-maps of main signal (top) and output signal 
(right) are shown 

Summary of Contents for Impress

Page 1: ... C TBProAudio 2018 Page 1 of 9 Impress Manual TBProAudio 2018 ...

Page 2: ...ical decisions right 2 Features Impress offers following features zero latency click free 64 bit internal processing low aliasing compressor design real oversampling up to 8x stereo left right mid side processing external side chain main signal multiband filter up to 192 dB Oct Linkwitz Riley design detector signal pre filter up to 192 dB Oct 2 compressor modes classic and clean low aliasing 3 gai...

Page 3: ...n vintage mode with a thermal noise emulation The knee function is optimized for low aliasing operation Multiband Filter The main signal could run through a multiband filter stage The signal is split into three frequency bands the mid band feeds the compressor the output of the compressor is mixed with the low and high band again The multiband filter is based on the Linkwitz Riley design up to 192...

Page 4: ...rates 5 How to use Impress is designed to reset all internal measurements if significant parameter changes are made This keeps all displays updated Impress uses various graphical elements to control the parameters of the plugin Value button Mouse click and drag up down changes value of the parameter Mouse double click opens value input box Mouse shift click resets value Mouse wheel increments decr...

Page 5: ... output original main signal main signal filtered by multiband filter output of compressor not mixed with low high band of multiband filter original detector signal detector signal filtered final output signal of Impress plugin 6 2 2 Oversampling Main and detector signal could be oversampled up to 8 times As Impress uses highest quality up down sampling algorithms for low aliasing operation signif...

Page 6: ...r signal stage normal operation Or channel 3 4 Side chain could be used as detector signal In this mode the level detection of the compressor is controlled by a different signal then the main signal side chain effects Det Input Detector input Main channel 1 2 SC channel 3 4 side chain 6 5 Detector Signal Stage Before the signal form channel 1 2 or 3 4 side chain is routed to the detector input of ...

Page 7: ...in 0 1dB steps 6 6 5 GainStage Type Modern Classic digital gain stage design Vintage Analog gain stage with thermal noise emulation Vintage C Analog gain stage without thermal noise emulation 6 6 6 Ratio This controls the compression ratio in the region above threshold 1 inf limiter in 0 1 steps 6 6 7 Knee Adjustable low aliasing soft knee knee starts x dB below threshold and ends x dB above 0 24d...

Page 8: ... 001ms steps 6 6 14 Max Gr Limit maximum gain reduction This is very useful for vocal compression just to avoid over compression 96 0dB in 0 1dB steps 6 7 Meter Meters for main signal Inp detector signal Det output Out and gain reduction GR LED signal meter range is from 60dBFS to 12dBFS in 3dB steps LED gain reduction meter is from 60dB to 0dB in 3dB steps Value below meters show maximum value If...

Page 9: ...0 secs You can register at http www tb software com tbproaudio 8 Activation After purchasing the license key unpack the key to a convenient place on your PC e g desktop Add the plug in to any track click on the Demo Click here to activate text and select the key file Remove the plug in and add it again The GUI shows now Registered to your name 9 Conclusion So finally if you have any questions or s...

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