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Transient Enhancer

A special task is to emphasize the transients at the beginning of a tone, chord and so on. The 
Gain Reduction Limiter is of special importance in this scenario. The chosen parameters result in a 
rather strong compression with quite fast release times and even negative ratios.

Without the limiter the signal would be compressed much too strongly; 10 to 15 dB of gain re-
duction would occur quite regularly in this case. But now the limiter comes into play by reducing 
maximum amount of gain reduction to 6 dB. If now the gain controller is also set to 6 dB, the signal 
will be boosted by 6 dB at its beginning and will then be held at 0 dB in its further course.

If for example an organ is processed this way, it sounds firmer as its transients receive an accentua-
tion. And no matter if a single note or a full chord is played – the output level will always stay the 
same, so that the result does not sound like typical compression.

Groove Ducking

The external sidechain input can be used to achieve specific groovy effects. Here the sidechain 
is triggered by a rhythmical signal like a 4 beat bass drum. The audio path can carry any desired 
sounds which are then reduced in the rhythm of the bass drum and therefore start to groove in 
sync with that beat.

Especially the release parameter can be used to adapt the timing of the effect to the tempo of the 
song, whereas the Anti Log mode offers interesting variations. If, for example, a 16 beat HiHat is 
processed in this way, it will benefit from a nice vivid groove it will now move in.

Bass sounds can now receive a stronger accentuation, as the ducking effect creates more space 
in the mix and the focus is shifted more onto the 4 beat bass drum. If the mpressor is inserted 
into the subgroup of a mixing console, you will also be able to trigger an arrangement of various 
instruments etc. via the external sidechain.

SC

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 E

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Threshold

16

14

9

5

0

-5

-8

-13

-15

-17

-18

dB

Attack

0,01

1,0

5,0

8,0

13

17

21

70

100

140

150

ms

Release

5

7

12

26

50

85

150

380

600

930

1k2

ms

1,2

1,3

1,6

2,0

5,0

10

-0,3

-1,0

-2,0

-3,0

-4,0

1:X

Ratio

EQ Gain

Lo

6,0

4,5

3,0

2,0

1,0

1,0

3,0

4,5

6,0

Hi

dB

EQ Freq

26

28

36

52

90

200 260

450

700

1k3

2k2

Hz

GR Limit

21

19

17

15

13

11

9

5

3

1,5

0

dB

Gain

10

13

17

0

0,5

2,0

3,0

4,0

6,0

20

dB

1,0

EQ Gain

Lo

6,0

4,5

3,0

2,0

1,0

1,0

3,0

4,5

6,0

Hi

dB

EQ Freq

26

28

36

52

90

200 260

450

700

1k3

2k2

Hz

GR Limit

21

19

17

15

13

11

9

5

3

1,5

0

dB

Gain

10

13

17

0

0,5

2,0

3,0

4,0

6,0

20

dB

1,0

Threshold

16

14

9

5

0

-5

-8

-13

-15

-17

-18

dB

Attack

0,01

1,0

5,0

8,0

13

17

21

70

100

140

150

ms

Release

5

7

12

26

50

85

150

380

600

930

1k2

ms

1,2

1,3

1,6

2,0

5,0

10

-0,3

-1,0

-2,0

-3,0

-4,0

1:X

Ratio

On

x10

On

SC Extern

Auto Fast

Anti Log

SC Extern

Auto Fast

Anti Log

On

x10

On

Left

Right

Link

Threshold

16

14

9

5

0

-5

-8

-13

-15

-17

-18

dB

Attack

0,01

1,0

5,0

8,0

13

17

21

70

100

140

150

ms

Release

5

7

12

26

50

85

150

380

600

930

1k2

ms

1,2

1,3

1,6

2,0

5,0

10

-0,3

-1,0

-2,0

-3,0

-4,0

1:X

Ratio

EQ Gain

Lo

6,0

4,5

3,0

2,0

1,0

1,0

3,0

4,5

6,0

Hi

dB

EQ Freq

26

28

36

52

90

200 260

450

700

1k3

2k2

Hz

GR Limit

21

19

17

15

13

11

9

5

3

1,5

0

dB

Gain

10

13

17

0

0,5

2,0

3,0

4,0

6,0

20

dB

1,0

EQ Gain

Lo

6,0

4,5

3,0

2,0

1,0

1,0

3,0

4,5

6,0

Hi

dB

EQ Freq

26

28

36

52

90

200 260

450

700

1k3

2k2

Hz

GR Limit

21

19

17

15

13

11

9

5

3

1,5

0

dB

Gain

10

13

17

0

0,5

2,0

3,0

4,0

6,0

20

dB

1,0

Threshold

16

14

9

5

0

-5

-8

-13

-15

-17

-18

dB

Attack

0,01

1,0

5,0

8,0

13

17

21

70

100

140

150

ms

Release

5

7

12

26

50

85

150

380

600

930

1k2

ms

1,2

1,3

1,6

2,0

5,0

10

-0,3

-1,0

-2,0

-3,0

-4,0

1:X

Ratio

On

x10

On

SC Extern

Auto Fast

Anti Log

SC Extern

Auto Fast

Anti Log

On

x10

On

Left

Right

Link

SCENARIOS

Summary of Contents for mpressor

Page 1: ...M P R E S S O R M P R E S S O R...

Page 2: ...are registered trademarks of elysia GmbH Other product and brand names con tained in this document are used for identification purposes only All registered trademarks product designations or brand na...

Page 3: ...irculation Do not cover circulation vents CAUTION Connecting Mounting Never connect the output of a power amplifier to this device Place the unit on a rigid board or fix it to an appropriate rack Use...

Page 4: ...otentials and to really push the envelope We have paid great attention to practi cal experience and fast results which is also the reason for reserving the explanation of the tech nological excesses r...

Page 5: ...rse Sounds 13 Transient Enhancer 14 Groove Ducking 14 Negative Gating 15 Ducking FX 15 Distorted Compression 16 Delay Loops 16 Frequency Compression 17 Mix Buss 17 REFERENCE 18 THD Analysis 18 Thresho...

Page 6: ...f time between when the input signal falls below the threshold and the mpressor s return to unity gain p 20 Anti Log an alternative characteristic of the release curve This function switches from a li...

Page 7: ...ctivates the respective channel of the compressor In deactivated state the in put is directly routed to the output by a hardwire bypass p 9 Link both channels can be operated in combination with the l...

Page 8: ...and cannot operate at 230 VAC WARNING Fuses Always make sure to use the correct fuses for the chosen voltage 230 VAC 0 8 A Slo Blo or 115 VAC 1 6 A Slo Blo Incorrect or missing fuses are dangerous sa...

Page 9: ...are not combined In practice you have to pay attention to set the controllers and switches for both EQ and gain sections identically Otherwise an audible drift between the left and the right channel...

Page 10: ...rameter on the other hand has a strong influence on the character of the compres sion being obvious or unobtrusive to the ear As a general rule linear or logarithmic release curves will be employed if...

Page 11: ...dynamics at the same time Niveau Filter This filter is a specialist in changing the overall sonic character of a track with ease It features two controllers per channel and is capable of producing co...

Page 12: ...eased amount of ambience is generated on top of it resulting in a loud and massive sound SCENARIOS Standard Compression Big Drums Threshold 16 14 9 5 0 5 8 13 15 17 18 dB Attack 0 01 1 0 5 0 8 0 13 17...

Page 13: ...e often therefore adequate settings of the gain controller have to be made for compensation SCENARIOS Smashed Drums Reverse Sounds Threshold 16 14 9 5 0 5 8 13 15 17 18 dB Attack 0 01 1 0 5 0 8 0 13 1...

Page 14: ...serted into the subgroup of a mixing console you will also be able to trigger an arrangement of various instruments etc via the external sidechain SCENARIOS Transient Enhancer Groove Ducking Threshold...

Page 15: ...e decreases in volume Here it is important that all effect units only send the pure effect signal 100 wet which is then mixed to the dry signal on a parallel track SCENARIOS Negative Gating Ducking FX...

Page 16: ...ts in a shift of the frequency response with each repetition of the delay SCENARIOS Distorted Compression Delay Loops Threshold 16 14 9 5 0 5 8 13 15 17 18 dB Attack 0 01 1 0 5 0 8 0 13 17 21 70 100 1...

Page 17: ...l other instruments which are quieter in the mix now groove in conformity with the drums and become very vivid thereby SCENARIOS Frequency Compression Mix Buss Threshold 16 14 9 5 0 5 8 13 15 17 18 dB...

Page 18: ...As the gain controller is placed directly in the input stage it will also influence the intensity of added harmonics Threshold The next figure shows a number of different threshold points The setting...

Page 19: ...ase in level Therefore fast attacks always produce higher amounts of gain reduction than longer ones REFERENCE Attack Auto Fast Auto Fast Based on using a burst signal again this diagram shows the com...

Page 20: ...you can use even the fastest release settings without gen erating unwanted artifacts Anti Log This diagram reveals the characteristics of the Anti Log function The darker curve shows the nor mal line...

Page 21: ...the input signal becomes with a setting like that the lower the output signal becomes perfect for spacy compression effects EQ Frequency This diagram shows a variation of center frequencies with the E...

Page 22: ...ng on the setting of the EQ gain the overall level possibly needs to be adapted with the gain controller EQ Gain High Here we have the opposite scenario In this figure the EQ gain controller is turned...

Page 23: ...how high the input level might become GR Limit Characteristic Finally a sine wave which increases in level is used in another angle of specifying the effect of the Gain Reduction Limiter The lowest cu...

Page 24: ...anced XLR cable that is connected to an unbalanced output which only uses ground and pin 2 connecting pin 3 to ground should solve the trouble Level Jump In some audio processors the output stage is d...

Page 25: ...you cannot or do not want to use this option please contact us via the address you will find at the end of this warranty statement You will be provided with registration documents suitable for fax or...

Page 26: ...2 ms 1 2 1 3 1 6 2 0 5 0 10 0 3 1 0 2 0 3 0 4 0 1 X Ratio SC Extern Auto Fast Anti Log Left Right Link Project Song Engineer Date Left Channel Track Right Channel Track Notes EQ Gain Lo 6 0 4 5 3 0 2...

Page 27: ......

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