This Analog Code™ plug-in is based upon the original analog Transient Designer™ from SPL which established the revolutionary concept for level-independent dynamic processing.
Only two controls allow to completely reshape the attack and sustain characteristics of a sound: Attack can be amplified or attenuated by up to 15dB while sustain can be amplified or attenuated by up to 24 dB.

 Working with the Transient Designer is very simple, however, the possibilities for studio and live application are seemingly endless.

Features
• SPL modeled plug-in version of the original analog Transient Designer
• Increase or decrease the impact of percussive sources
• Reduces or increases room sound or preexisting reverb on virtually any source
• Great gate substitute, minimizes mic bleed in seconds
• An essential mix tool endorsed by the world’s finest professional engineers

System Requirements

MAC: OS X 10.4 or higher, CPU G4/Intel Core Duo, 256MB RAM SVGA 1024x768.
PC: Win 2000, XP or Vista, CPU 1GHz, 256MB RAM, SVGA 1024x768.

Transient Designer™ Features

Unlike other dynamic devices, the processing is not goverened by the signal level but rather by its dynamic characteristics, so all signals (loud and soft) are processed equally.

The Transient Designer allows you to emphasise or smooth the attack and extend or shorten the sustain. For the first time it is possible to shape the dynamic path of a signal as you want, as if for example you were changing the microphone distance and position after the recording has been made.

With no effort you can shorten or lengthen the attack of all kinds of percussive signals, such as the bass drum, snares, toms, congas etc. to give them more kick, or to flatten the signals. It’s almost like being able to change the amount of drum damping after the recording. The same applies to virtually any other signal: Amplify or reduce the picking sound of an acoustic guitar, hold the sound of the strings longer, reduce the reverbtime of a choir, compress solo vocals, increase intelligibility, actuate the piano pedal “electronically”, turn down the slapbass a notch or give it even more attack, etc.

In nearly every aspect the Transient Designer is different from conventional Dynamic Processors or Compressors. You don't need to know how the Transient Designer works in order to be able to use it effectively, but if you're at all curious as to what goes on inside the box, read this section while referring to the diagrams. 

Differential Envelope Technology (DETª)

Differential Envelope Technology (DETª) maintains identical envelope processing from quiet to loud signals (from pianissimo to fortissimo) without the need for the user to adjust any external parameters. In a conventional system, low level signals would be excluded from processing. Both parameters (Attack and sustain) work in parallel and do not influence each other.

The Attack control circuitry

The Attack control circuitry uses two envelope generators. The first follows the shape of the original curve (Diagram 1: envelope follower Env 1) rendering conventional Attack and Release controls superfluous, while the second generator produces the envelope Env 2 (Diagram 1) with a slower Attack. The hatched area shows the difference between Env 1 and Env 2 (Diagram 2), and the VCA control voltage is derived from this difference. Positive Attack values emphasise Attack events, negative Attack values smooth out the Attack envelopes of events.

The Sustain control circuitry

The Sustain control circuitry includes two further envelope generators. The envelope follower Env 3 (Diagram 4), again follows the shape of the original curve rendering conventional Attack and Release controls superfluous. For a longer period the envelope generator Env 4 (Diagram 4) holds the sustain level according to the peak level and the VCA control voltage is generated by the difference between Env 3 (Diagram 4) and Env 4 (Diagram 5: hatched area). The sustain is extended at positive settings and shortened at negative settings.