SergeModular

Hi,

I had the chance tonight to compare one of my Extended ADSRs from a 2007 STS panel to Bakis' account of his mid-80's version. Apparently, the version that's in the CV1 Shop and M-class series is a redesign which follows this gate and trigger logic:

Sending a +5v logic 'Gate' (high), the input time 'Delay' segment is activated setting the 'pre-attack' time.

Then, with the 'Gate' still high, the 'Attack' time segment follows, then the 'Initial Decay' time segment, settling at the 'Sustain' voltage until the 'Gate' goes low and then the 'Release' time segment follows until another 'Gate' is high at the input.

The 'Trigger' input re-triggers the 'Initial Decay' segment only for articulating accents from the TKB or Sequencer, for example.

The individual segment inputs have wide exponential voltage control. The VC ALL input is a master 1v/Oct 'total time' input for the shrinking or stretching the entire envelope.

As I mentioned earlier, the combination of individually voltage programmable segments, from a Sequencer B M-odule, for example, the individual segment inputs and the composite CV input yield an extremely flexible envelope system.

Hope this helps!
Matt

On 8/7/08, Bakis Sirros <synth_freak_2000@...> wrote:

hello,

well, i do not (yet) have the Dual ADSR m-odule, i only have an old (mid-80's) extended adsr module in a mid-80's serge panel of mine.

the 'virtues' are:

it has a delay stage, all of its stages (plus the delay stage!) are voltage controllable, and you can switch between linear attack and release, or exponential attack and release, or exponential attack only and linear release.

it has a gate and trigger input, but the trigger input reacts very different than the retrigger input on most other adsr's:

the serge adsr output stays at its sustain level ALL the time and it drops to zero volts ONLY when the adsr receives a gate in its gate input.

if you send a trigger in its trigger input, then the voltage drops from the sustain level to zero volts with a rate controlled by the Release knob, then goes to peek voltage (+5 volts) with a rate controlled by the Attack knob and then drops again to sustain level with a rate controlled by the Decay knob. (IIRC)

so, its quite a different behaviour than the other adsr's...

that's all.

best regards,

Bakis.

Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
[Doepfer_a100] group owner
www. parallel - worlds - music. com
www. myspace. com/ parallelworldsmusic
www. myspace. com/ interconnectedmusic
www. myspace. com/ memorygeist
www. DiN. org. uk
www. musicamaximamagnetica. com
www. shimarecords. co. uk
www. rubberrecords. gr
Athens - Greece

--- On Thu, 8/7/08, hansgrusel <hansgrusel@...> wrote:

From: hansgrusel <hansgrusel@...>
Subject: [SergeModular] Re: New Serge M-odules released: The 'Dual ADSR' and the 'Wave Processor' M-odules!
To: SergeModular@yahoogroups.com
Date: Thursday, August 7, 2008, 6:41 PM

hi Bakis,
can you or anyone else on the list expound on the virtues of the serge ADSR?

thanks!

--- In SergeModular@ yahoogroups. com, Bakis Sirros <synth_freak_ 2000@...> wrote:
>
> hello,
>
> two new Serge M-odules have been released:
>
> the Dual ADSR m-odule (includes two Extended ADSR modules, a Dual Comparator, and
a Dual Transient Gen.) price is 1600 USD
>
> the Wave Processor m-odule (includes Ring Modulator module, Triple Waveshaper
module, Wavemultipliers module, Xfader module, Mixer module) price is 2000 USD.
>
> Sketches and Pictures in the Photo section of the Yahoo! Serge Modular Users Group and
in the Egres website (www.serge-fans. com)
>
> thanks,
> Bakis.
>
>
> Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
> [Doepfer_a100] group owner
> www. parallel - worlds - music. com
> www. myspace. com/ parallelworldsmusic
> www. myspace. com/ interconnectedmusic
> www. myspace. com/ memorygeist
> www. DiN. org. uk
> www. musicamaximamagneti ca. com
> www. shimarecords. co. uk
> www. rubberrecords. gr
> Athens - Greece
>