The Big Grp Synthesizer A8

YouTube via vigasan. Be sure to see the GRP label for more.
"Enrico Cosimi plays GRP Synthesizer A8 - Bologna Animalogica meeting 22/03/2009"

Video Playlist:
The Big Grp Synthesizer A8
GRP Synthesizer A8 - Sequencer
Grp Synthesizer A8 - Sample and hold
Grp Synthesizer A8 - On The Run
Grp Synthesizer A8 - Percussion
Grp A8 - Noise


"The structure of the analog synthesizer is the following:

·6 VCOs, temperature stabilized, with 3 FM sources (lin/exp) and 2 PWM sources.
·6 SUB VCO with -1 and -2 octave selector.
·2 RING MODULATORS
·1 NOISE GENERATOR (White, Pink, Low Freq).
·2 VCF Low Pass 24dB/Oct Transistor Ladder (Moog® style).
·2 VCF State Variable 12dB/Oct with four modes (Oberheim® style, but with auto oscillation).
·2 FIXED FILTER BANK 14 BAND (a la Moog® 914 module).
·8 VCAS (three on the main audio signal path, the others for modulation).
·3 AUDIO MIXERS.
·1 AUTO PAN.
·4 SIX STAGES ENVELOPE GENERATORS in DAHDSR configuration.
·3 FOUR STAGE ENVELOPE GENERATORS in ADSR configuration.
·2 VCLFO
·1 PERFORMANCE LFO amplitude modulatable by Aftertouch or ModWheel.
·1 Real SAMPLE & HOLD.
·1 Full function (and complex) 8x2/16x1 STEP SEQUENCER syncable with MIDI, Int Clock, Ext Clock or whatever.
·Separate PORTAMENTO TIME for Upper and Lower sections.
·A-440 Hz reference tone.
·1 Internal MIDI INTERFACE"

Grp A2 Synthesizer Videos by AudioCentralMagazine

Published on Jul 4, 2016 AudioCentralMagazine

Playlist:
1. Grp A2 Synthesizer Waveforms & Modulations - "A short run with waveforms (single and super saw/triangle) from Grp A2 Analog Synthesizer."

2. Grp A2 Synthesizer Hard Sync - "Hard Sync on Grp A2 Synthesizer. Try to listen with a plain waveform and with a Super Saw/Super Triangle."

3. Grp A2 Synthesizer Filtering and Mod - "State Variable Filter in Grp A2 Synthesizer can act as Low Pass, Band Pass, High Pass, Notch. A special mode DIRECT redirect 12 dB Low and 12 db High filtering on separate stereo channel outs."

4. Grp A2 Synthesizer Audio Mod, Ring Mod & SH - "Audio Rate Mod from VCO 2 (simple wave and SuperSaw/Super Triangle); Ring Modulation as audio product and as modulation source; good old Sample & Hold. Courtesy of brand new Grp A2 Synthesizer."

5. Grp A2 Synthesizer Arpeggio - "In Grp A2 Synthesizer, you can modulate the Cutoff Frequency with a wealth of audio rate signals (VCO 1, VCO 2, Ring Mod Out). If the modulating oscillator is producing a "simple" waveform, no problem. But if the modulation is, in audio rate, from a Super Saw or a Super Triangle..."

6. Grp A2 Synthesizer Sequencing - "Grp A2 Synthesizer is under control of 960 Sequential Controller. Row 1 goes to Pitch (VCO 1+VCO2), Row 2 goes to Filter Cutoff, Row 3 Goes to VCO 2 Frequency. After a first impression of out-of-tune, the separate sequenced values for VCO2 are fine for Ring Modulation between VCO1 and VCO2. Don't forget the Ring Modulation with the 9 SuperSaw and SuperTriangle."

GRP Eurorack Videos by AudioCentralMagazine

AudioCentralMagazine
Published on Aug 13, 2017

Playlist:

1. Grp VCO Euro Rack
"The Grp VCO Euro Rack. 00.00 = Octave 01.10 second VCO 01.26 waveforms 02.20 two oscillators 03.20 hard sync 04.36 fm lin & exp 06.38 three oscillators 07.36 sub oscillator"

2. Grp Synthesizer 24 dB Low Pass Filter
"The Grp Synthesizer 24 dB Low Pass Filter Euro Rack. 00.31 = Cutoff & Resonance 01.02 pole select 02.34 distortion 03.09 envelope & lfo modulation 04.41 resonance cv modulation with lfo 06.07 audio rate frequency modulation from vco sine wave."

3. Grp 12 dB State Variable Filter
"Grp Synthesizer 12 db State Variable Filter Euro Rack. 00.17 Cutoff, Resonance & Env Amount 01.34 Input overdrive 02.00 mode selection w. lfo mod 03.18 resonance enveloped 04.09 distortion & resonance 05.50 add sub oscillator 07.19 short envelope 08.18 auto oscillation 09.57 notch."

4. Grp Voltage Controlled Amplifier Euro Rack
"Grp Synthesizer Voltage Controlled Amplifier in Euro Rack Format. On this video: changing linear & exponential response, audio rate AM, initial gain."

5. Grp Envelope Follower Euro Rack
"Acidlab MIAMI goes into Grp Envelope Follower Euro Rack. Gate out fires an ADSR for lowpass filtering MIAMI sound; Env Foll out goes to SVF BandPass Filter for emphasizing snare & hats."

6. Grp Fixed Filter Bank Euro Rack
"Fixed Filter Bank is receiving three sligthy detuned saw oscillators."

7. Grp Stereo Out Module
"Grp Stereo Out Module is receiving a kick (LP full resonance enveloped) on CH 1, a snare (noise highpassed plus click) on CH 4, seq 1 saw&sqr on CH 2 and seq 2 sqr wave on CH 3. Ch 2 and 3 are hard panned L-R; ch 1 and 2 have pan pot control. WARNING! on this video, L and R are INVERTE (nice, isn't it? :-D ). Sequences courtesy of Grp R24 Step Sequencer 8x3."

8. Grp Sample & Hold Euro Rack
"Grp Sample & Hold is controlling: VCF Cutoff, VCO Frequency (w. e w.o. hard sync), sh clock rate, smooth/stepped."

9. Grp Synthesizer Low Frequency Oscillator
"Four Grp Low Frequency Oscillators; each one drives VCA Gain amplifying a filtered oscillators. LFO rates are uncorrelated and each LFO can vary its waveform from ramp to triangle and from triangle to saw."

10. Grp Envelope Generator Euro Rack
"From left to right: first eg on PWM, second eg on cutoff frequency, third eg on cutoff frequency (with double ratcheting gate), fourth eg on amplifier."

11. Grp Mixer Euro Rack
"The inverted Oscillator ("-" out of the left mixer) is subtracted (e.g., added with minus sign) to lowpass filter output... instant high pass filter. :-)"

GRP Synthesizer - A2

GRP Synthesizer - A2 from HerrSchneider on Vimeo.

Let's listen to the GRP Synthesizer A2 - a very versatile analog monosynth with a high-quality sound and a huge number of modulation possibilities - and this is no exaggeration: The frequency of the two oscillators and the filter cutoff each can be influenced by one of 11 different modulation signals.

The two oscillators feature 5 waveforms each, the first VCO offers additional PWM at two waveforms, the second VCO a parameter called "Shape" which fades in nine copies of the selected waveform for super-saw and super-triangle sounds. You get a Ring Mod, Noise, Sample & Hold, two LFOs, arpeggiator and more.

The filter design has a lot of character and is capable of producing formant/vocal-like sounds and a liquid sounding resonance. The great sounding distortion parameter offers many more options for designing sounds.

With its MIDI and CV/Gate inputs this is a synthesizer that fits in all studio or live-environments. It has a good size for jamming and a quality feel - and last but not least, the A2 is proving very popular among our staff - so maybe that means something.

Learn more about the GRP Synthesizer A2:
https://schneidersladen.de/de/grp-synthesizer-a2

_______________________________________
SchneidersLaden presents SUPERBOOTH23

Synth Cafè presenta: Grp Synthesizer A1 con Enrico Cosimi

video upload by Synth Cafè

First demo of the new GRP A1 Mini Desktop Synth posted here. Front panel and system diagram pics below.

"Per la prima volta in assoluto, Grp Synhesizer presenta Grp A1

Il sintetizzatore monofonico Grp A1 può essere utilizzato come uno strumento indipendente oppure si possono filtrare segnali esterni attraverso il circuito risonante Low Pass 18dB VCF.
La presenza di tre segnali interni (VCO, SUB e NOISE) garantisce potenza timbrica e facilità d'uso. Con i due oscillatori a bassa frequenza - LFO (il primo integra un Sample & Hold S&H) e il generatore di inviluppo ADSR, è possibile avere comportamenti di modulazione ciclici o transitori.
Lo strumento può essere alimentato tramite un cavo USB di tipo C collegato a qualsiasi alimentatore USB da 2,5A. A1 può anche essere estratto dal suo cabinet per essere facilmente installato in qualsiasi sistema modulare Eurorack alimentandolo utilizzando i normali cavi piatti forniti con i sistemi Eurorack

Grp Synthesizer A1: http://www.grpsynthesizer.it/index.ph...

ISCRIVITI AL NOSTRO CANALE TELEGRAM: @synthcafeofficial

www.synth.cafe"

Googlish:

"For the first time ever, Grp Synhesizer presents Grp A1

The Grp A1 monophonic synthesizer can be used as a standalone instrument or external signals can be filtered through the Low Pass 18dB VCF resonant circuit.
The presence of three internal signals (VCO, SUB and NOISE) guarantees tonal power and ease of use. With the two low-frequency oscillators - LFO (the first integrates a Sample & Hold S&H) and the ADSR envelope generator, it is possible to have cyclical or transient modulation behaviors.
The instrument can be powered via a USB Type-C cable connected to any 2.5A USB power supply. A1 can also be extracted from its cabinet to be easily installed in any Eurorack modular system by powering it using the normal flat cables supplied with Eurorack systems

Grp Synthesizer A1: http://www.grpsynthesizer.it/index.ph. ..

SUBSCRIBE TO OUR TELEGRAM CHANNEL: @synthcafeofficial

www.synth.cafe"

Synth Shop Hieber-Lindberg, Munich, Germany

via cheater cheater:

"I thought your readers could be interested that there's
such a nice place in Munich for synths.. it's not exactly Five G but
then they don't have to fly to Japan for it.. :)

Hi guys,
Last Saturday I have visited the music shop Musikhaus Hieber-Lindberg
in Munich, Germany. I was tipped off by Florian, who said it could be
interesting. You can find their website at
http://www.hieber-lindberg.de (unfortunately only in German, but it's
easy to find your way around, and Google Translate works well)

The Shop

CLICK FOR MORE »

Second Phase of Grp A4 Production Begins

via Paolo Groppioni on The MATRIXSYNTH Lounge

"Hello folks,

as on our timeline, we have started the second phase of Grp A4 production. To be exact, the THIRD production of Grp A4 Synthesizer, as first and second batches are gone away very quickly. In these days, we are gathering the last components for production while engines are gearing up. We'll keep you informed on.

Last, but not least: we decided to built some instrument more than forecast, so - if you are still bouncing and stalling the decision - THIS could be the right time to get the Grp A4 Analog Synthesizer.

Salve gente,

in linea con la nostra timeline, abbiamo iniziato la seconda fase della produzione Grp A4 serie 2014. Per essere precisi, la terza produzione di Grp Synthesizer A4. Il primo ed il secondo lotto sono andato via molto velocemente. In questi giorni, stiamo acquistando gli ultimi componenti per la produzione, mentre i motori si stanno scaldando. Vi terremo informati sullo stato avanzamento lavori.

Ultimo, ma non meno importante: abbiamo deciso di costruire qualche strumento in più rispetto alle prenotazioni, quindi - se siete ancora indecisi - questo potrebbe essere il momento giusto per ottenere il vostro Grp A4 Analog Synthesizer."

GRP Synthesizer - A2

Note: Auction links are affiliate links for which the site may be compensated.

via NOISEBUG Reverb

Note auction links are affiliate links.
See the site's privacy policy for more info.

"A little great analog synthesizer with all the Grp heritage of sound and capabilities. Wide 8 vertical space in 5U format or, if you prefer, optionally rack mountable, with a wooden sided dedicated cabinet, the Grp A2 Analog Synthesizer has MIDI In and Analog CV/Gate connections. It offers two big oscillators with the classic analog waveforms , from Grp, Plus Super Saw and Super Triangle; the great 12dB/Oct ; Grp State Variable Filter, one Ring Modulator (have you ever tried to ring modulate a 9-components Super Saw?), One Noise Generator, one Amplifier, one Master Out section with a couple of gorgeous analog Vumeters. There are a couple of Envelope Generators, the Filter-dedicated one with Looping capabilities as on big Grp A4 Synth and a couple of LFOs/Modulation Routings. The on board Arpeggiator can be clocked by Internal Clock, ExternalAnalog Clock or MIDI Clock; easy and fun, it's a breeze to use. Grp A2 Analog Synthesizer is built like a tank. But is far more dangerous."

CLICK FOR MORE »

GRP A8 - Un sintetizzatore di Paolo Groppioni (Rome, Italy)

Published on Oct 12, 2014 Elegtrosmok Music

"Part 1 of some randomly recorded sound samples done with the GRP A8 synthesizer.
The GRP A8 is a 6 Oscillator analog synthesizer with two independent synth sections. Each synth section with three VCOs plus three additional sub oscillators and one analog ringmodulator. Semi modular routings can be done by dedicated knobs. There are two multi mode VCFs, two fixed filterbanks, two VCLFOs and one LFO, Sample&Hold, white/pink/red noise and seven envelope generators and a very comfortable sequencer on board. The audio signals of both synth sections can be voltage controlled panned to the Stereo Output. The GRP synthesizers are developed and manufactured by Paolo Groppioni (Rome / Italy)."


Published on Oct 12, 2014

"Part 2 of some randomly recorded sound samples done with the GRP A8 synthesizer."

GRP A8-2

Published on Oct 12, 2014

"Part 3 of some randomly recorded sound samples done with the GRP A8 synthesizer."

Analogue Jam with the DSI Pro2, the GRP A4, Doepfer Dark Time and John Wegner

Published on Dec 11, 2014 Kaiboard

"First jam with the new DSI Pro2 synthesizer. Inspired by my friend John Wegner, who contributed some guitar lines (offline via sampler), I had some fun with this new monophonic synth star."

Van Allen Echoes - a musical journey in eight minutes from sun to earth

Published on Mar 18, 2013 Kaiboard

"This piece was inspired by sounds which were created by atmospheric lightning discharges and their interaction with the Van Allen Radiation Belt. These sounds* have been detected and recorded by the University of Iowa (http://www-pw.physics.uiowa.edu). I further processed the sounds using the GRP A4 synthesizer and than augmented them with a 'spacy' piece of music. As always recorded live in one track and using the famous coat from Kazakhstan. Why does the piece last 8 minutes - it's the time particles need from sun to earth and reach the Van Allen Radiation Belt - we can see them as polar lights.
The video snippets are taken from the NASA homepage (www.nasa.gov).

*The Van Allen Probes EMFISIS Waves instruments detected these signals with two orthogonal magnetic antennas (Bv and Bu) during UTC hour 18 of September 11, 2012. The predominant feature is a barrage of whistlers which originate with lightning discharges on Earth. These signals propogate along magnetic field lines through the thin ionized gasses of space which allow the higher frequencies to travel faster than the lower frequencies. This results in a frequency dispersion and the characteristic whistling tone, which also sounds a little like science-fiction movie sound effects."

And a few GRP demos:



Playlist:
First steps with GRP A 4 step sequencer
First Jam with GRP A4 and four synth generations
Sneaking up on the GRP A4
Crazy Cross-Modulation with GRP A4 Synthesizer
WakeFake - inspired by Rick Wakeman, a moogish GRP A4 and a coat from Kazakhstan
Morte et Dabo

Grp Synthesizer A4 | Kid Gloves

Alex Ball

"The Grp Synthesizer A4 is an Italian analogue synthesizer originally released in 2012.

Combining classic subtractive synthesis with modern desires, it's got pretty tasty spec.

To save the longest video description ever, here's a link to Theo Bloderer's comprehensive breakdown: https://greatsynthesizers.com/en/revi...

In this video I tried to make use of the A4's architecture, whilst keeping things musical. It's very easy with this much power at your fingertips to overcook it and just make either a sonic mess, or a sound that only works in isolation. Hopefully I've struck the balance.

Examples of things I did:
Dual sequence utilising the playback and step repeat modes. I sequenced some chords in one section with oscillator 1 + 2 (tuned a fifth apart) following sequencer A and oscillator 3 following sequencer B.

For the lead sound I also used the sequencer as a modulation source sent to phase synched oscillators and the filters that also had its tempo CV'd from an envelope so that it sped up and down rollercoaster style.

I ran my Juno through the A4 via the external signal in and envelope follower. This allowed me to control the A4 from the Juno, but have the dual A4 filters on it. I also tuned in two of the A4's oscillators to complimentary intervals and they were coming through with the Juno every time it gated the synth.

The main riff was a blend of three oscillators and the ring modulator with a combination of linear and exponential modulation and oscillator sync.

There were also various stereo bass sounds - subby and round, sharp and phat, and driven and heavy. The distortion comes from the synth itself.

I also made some floaty, trippy sounds with the A4 in the middle eight, as well as various FX.

Hopefully this all gives a glimpse into what it can do.

Gear used:
Grp A4 (2012)
Arturia KeyStep Pro (2020)
Arturia MicroFreak (2019)
Roland System 100m (1979)
Roland Juno-6 (1982)
Roland TR-707 (1985)
Korg MS-20 (1978)
Korg KR-55B (1982)
Sequential Drumtraks (1984)
AMS RMX-16 (1981)
AMS DMX 15~80S (1978)
Ibanez RM-80 (early 80s)
Vocals recorded with an AKG C414S

Mixed by Alex Ball
Mastered by Jakob at Sonic Peak Studio"

GRP Synthesizer

video upload by GRP Synthesizer

"A romantic sequence with the monophonic analogue synthesizer Grp A1"

MEFF Modular Synthesizer Exhibition Fair Set for April 6th & 7th 2019

Tiptop Audio, Lattexplus & Synth Café present MEFF Modular Synthesizer Exhibition Fair

April 6th & 7th 2019 Impact Hub Florence, Italy

Featuring:

ARTURIA - BASTL INSTRUMENTS - BEHRINGER - CLANK - DIY SYNTH ITALIA - ERICA SYNTHS - ERROR INSTRUMENTS - EXAGONAL - FRAP TOOLS - GARRET LABS - GINKO SYNTHESE - GRP SYNTHESIZER - JOLIN LAB - L-1 - LIVESTOCK ELECTRONICS - MARTIN PAS - MIDIWARE - MILK AUDIO STORE - MODAL ELECTRONICS - MODULAR AUDIO DEVICES - MOOG - NOVATION - PURRTRONICS - QOSMO MODULAR - ROLAND - RTFM - SOMA - TANGIBLE WAVES - TEENAGE ENGINEERING - TIPTOP AUDIO -  WALDORF - YAMAHA

Modular synthesizer fair, workshops and performances with the best manufacturers and artists in the industry.

The press release:

March 2019, Italy - Tiptop Audio, the Californian modular synthesizer brand, in partnership with Lattexplus leading event organisation in Florence since 2010 and Synth Café the Italian synth web community are proud to announce the third edition of MEFF at the Impact Hub Florence and BUH! Circolo culturale urbano on the 6th and 7th of April 2019. The fair will involve more than 30 International synthesizer brands and distributors with workshops and performances in an event free to the public.

MEFF returns to Impact Hub coworking in Florence and BUH! Circolo culturale urbano to set up its event, which will include an Exhibitor area where attendees can explore, learn, interact, demo and purchase instruments. The Performance area, called the Auditorium, part of BUH! Circolo culturale urbano is a room acoustically designed by the sound designer and engineer Donato Masci. In the evenings, the location will host workshop and performances including a soldering workshop by Brno brand BASTL Instruments.

CLICK FOR MORE »

GRP R24 Step Sequencer Sequencing Synthesizers.com Modular

GRP R24 Step Sequencer Three Parallel Sequences

Published on Mar 12, 2016 AudioCentralMagazine

"The R24 Step Sequencer from Grp Synthesizer is playing three independent synth voices from Synthesizers.com Modular. Each voice has separate pitch and gate and ratcheting and repetitions and step order controls."

GRP R24 Step Sequencer Dual Gate Out

Published on Mar 12, 2016

"Grp Synthesizer R24 Step Sequencer Row B is controlling dual synth structure: Gate Out 1 fires a pitched oscillator (kick wannabe), Gate Out 2 fires a snare wannabe (white noise enveloped). You can choose gate out on each sequence step."

Grp R24 Step Sequencer Accent from Row C

Published on Mar 12, 2016

"R24 Sequencer with a 16-note long sequence (Row A & B); Row C on filter accent."

Superbooth 2018: Grp Synthesizer New Eurorack Lineup | SYNTH ANATOMY

Published on May 7, 2018 SYNTH ANATOMY

"At Superbooth 2018, Grp Synthesizer presented their first Eurorack Synthesizer lineup.

Join the Patreon page to get access to free sound content (sample & preset libraries, free plugins... & participate on exclusive giveaways) https://www.patreon.com/synthanatomy"

TORINO SYNTH MEETING 2015 June 7 Details

First announced here, additional details on the event are in.

You'll find the full program for the event here.

All the news, the workshops and live is on their website here.

You'll find the facebook event page here.

Currently signed up for the event are:
- ERICA SYNTHS presents the new ACIDBOX2 (exclusive)
- ELEKTRON + DATALINE for overbridge
- ARTURIA Beatstep PRO
- ROLAND all the new instruments!!
- GRP SYNTHESIZER R24 Sequencer (exclusive)
- DATALINE LIVE for the first time in Italy

Update: List of exhibitors:
ACCESS (DE)
APOGEE (USA)
ARTURIA (FR)
BASTL INSTRUMENTS (CZ)
DAVE SMITH (USA)
ELEKTRON (SE)
ERICA SYNTHS (LV)
EUTERPE SYNTHESIZER LABORATORIES (I)
FRAP TOOLS (I)
GRP SYNTHESIZER (I)
KINETIK LABORATORIES (I)
MIDIMUSIC (I)
MIDIWARE (I)
MOOG (USA)
NATIVE INSTRUMENTS (DE)
NOVATION (UK)
PATCHBLOCKS (UK)
RADIKAL TECHNOLOGIES (DE)
ROLAND (I)
SEELAKE (I)
SENNHEISER (DE)
SOUND MACHINES (I)
SOUNDWAVE (I)
TEENAGE ENGINEERING (SE)
WALDORF (DE)

Presentazione Grp A8 - Parte 1

YouTube via vigasan
"Enrico Cosimi presenta il Grp Synthesizer A8 - XL Studio - Roma, 30 Maggio 2009 - Sessione teorica"

Presentazione Grp A8 - Parte 2

"Enrico Cosimi presenta il Grp Synthesizer A8 - XL Studio - Roma, 30 Maggio 2009 - Sessione pratica"

GRP Redesigns Website Including Details on New Eurorack Modules

This one is in via John L Rice. GRP has a new website! Their new site includes details on their latest eurorack modules announced at this year's Superbooth. The following is a quick capture of the individual modules for the archives.

"The Grp Synthesizer products are completely hand-assembled and are the link between technology and handcraft, worthy heirs of lute players translated into modern technology. It is important for us to keep constant, in the long run, the sound and designs characteristics so to render unique the Grp Synthesizer and to maintain high quality, also for the future entry level models. The Firm philosophy aims at projecting this engagements in the business so as to guarantee the maximum satisfaction to the client."

CLICK FOR MORE »

New GRP V22 VOCODER Revealed

A front panel drawing first went up here. We now have an image of the actual unit, and some details on the new GRP V22 VOCODER:

"After a sneak preview in Florence at Meff, we are working hard to be ready for the official presentation of the V22 at Superbooth 2019 in Berlin. Before Superbooth, another preview in Rome May 4th at Synth Day & Night with Mr. Enrico Cosimi.

A 22 band full analog design vocoder, with analysis and synthesis section full analog (20 BP, 1 LP and 1 HP analysis filters), a dedicated High Pass Filter on Main Output, everything hosted in an indipendent cabinet with wooden panels with a also an optional 'Tolex' version, these are the main technical features of the Grp Vocoder V22.

The preorder for the Grp Vocoder V22 is planned in June 2019; we are not able currently to estimate the price of the Vocoder, but as soon as the second prototype will be finished we will publish an updated pricelist.

Grp Synthesizer V22 Analog Vocoder Keypoints:

1. 22 band full analog design vocoder
o LP48dB@185Hz&HP48dB@7040Hz
o 20 BP Filters 48 dB BP @ 220, 262, 311, 370, 440, 523, 622, 740, 880, 1047, 1245, 1480, 1760,
2093, 2489, 2960, 3520, 4186, 4978, 5920 Hz
2. Analysis section full analog with 20 BP, 1 LP and 1 HP analysis filters
o Speech In/Analysis with Compressor & Noise gate freely adjustable o Mic/Line combo XLR/TRS/TS input – no phantom power
o Mic/Line Level Input Gain with dedicated analog Vu-meter
3. Synthesis section full analog with 20 BP, 1 LP and 1 HP analysis filters

CLICK FOR MORE »

New GRP Eurorack Demos

The following have been added to the playlist in this post.

9. Grp Synthesizer Low Frequency Oscillator
"Four Grp Low Frequency Oscillators; each one drives VCA Gain amplifying a filtered oscillators. LFO rates are uncorrelated and each LFO can vary its waveform from ramp to triangle and from triangle to saw."

10. Grp Envelope Generator Euro Rack
"From left to right: first eg on PWM, second eg on cutoff frequency, third eg on cutoff frequency (with double ratcheting gate), fourth eg on amplifier."

11. Grp Mixer Euro Rack
"The inverted Oscillator ("-" out of the left mixer) is subtracted (e.g., added with minus sign) to lowpass filter output... instant high pass filter. :-)"