GS-e7 7-voice Analog Polysynth
Вставка
- Опубліковано 22 сер 2024
- We would like to introduce our new Analog Polyphonic Synthesizer, e7. It is a 7-voice, 4-part multitimbral desktop synthesizer, also featuring MIDI polyphonic expression (MPE). This instrument is the result of years of research and development to come up with the first analog polyphonic synthesizer ever made in Argentina.
The synth is available in our new online store: shop.gsmusic.c...
User's manual: www.gsmusic.co...
Signal path
The signal path is completely analog, featuring two VCO per voice, a white noise source, a mixer, a 4-pole low pass VCF and a VCA. The control voltages are digitally generated, including 3 LFO, 2 ADSR-type envelope generators. Finally, it has a stereo digital effects processor with Delay and Chorus. LFO 1, LFO2 and the delay can be synced with the MIDI clock using a user selectable subdivision.
Oscillators
It features two VCO plus sub oscillator per voice. Each oscillator has 3 different waveforms: triangle, sawtooth and saw-tri (triangle+sawtooth). There is a fine-tuning adjustment and a transpose option, allowing tune adjustment up to +/- 2 octaves. Tuning can also be modulated with any of the three LFOs and EG1.
Furthermore, each oscillator has a pulse wave that can be turned on or off, which is mixed with the other waveforms. Its pulse width can be modulated with LFO1 and/or EG1. Oscillators can be hard synced.
The autotuning algorithm takes about 2 seconds to complete. All the voices are tuned in parallel, making a lot faster than usual.
Mixer
The mixer can control the levels and mix the two oscillators, the suboscillators and the white noise or the external input.
Filter
The filter is a 4-pole ladder-type low-pass filter with resonance control. It can be modulated with EG1, this modulation an also be affected by velocity. It can also be modulated with any of the 3 LFOs. On the other hand, it features keyboard tracking and it can be controlled by the modulation wheel or aftertouch.
Chorus
There are two types of chorus available: basic and ensemble. The Basic algorithm is subtle and allows you to add some spatiality tothe resulting sound, while the Ensemble algorithm adds a different dimension to the sound, simulating a string or vocal ensemble. The Basic algorithm uses two delay lines, while the Ensemble uses 4 delay lines. Each delay line has its own internal LFO. There are controls for rate, depth and mix.
Delay
The delay can be a stereo delay or a ping pong delay, with its maximum delay time being as long as 1.35s. It is possible to sync the delay to the MIDI clock too. If the delay is synced, the delay time knob controls the time division instead of the delay time. There are controls for the feedback and mix too.
LFOs
There are three LFOs available. LFO 1 and 2 have 5 waveshapes: triangle, ramp up, ramp down, square and random with sample and hold. LFO 3 has the first 4 waveforms and is activated with the modulation wheel and/or aftertouch.
LFO frequencies go from 0.1Hz to 100Hz. Additionally, LFO 1 and 2 have different modes:
Monophonic: The LFO is in phase for all of the voices.
Polyphonic: The LFO is generated to a slightly different frequency for all of the keys pressed. This allows an interaction of the phases, generating more complex modulations.
Keyboard Tracking (KB Tracking): The LFO frequency varies according to the note played following the chromatic scale.
Keyboard Sync (KB Sync): The LFO is restarted when a key is pressed. Each voice has its independent LFO.
Clock Sync: The frequency of the LFO is synced to the MIDI clock signal. The e7 automatically detects the BPM of the clock signal. It can be configured to generate different rhythmic figures.
Keyboard + Clock Sync: The LFO frequency will be a sub-division of the MIDI clock signal. Also, the LFO will be restarted each time a key is pressed.
Envelope generators
There are two ADSR-type envelope generators. There are controls for attack, decay, sustain and release. Attack and release can be modified by velocity and the envelope times have keyboard tracking.
Stereo
By default, the voices have a stereo panning from left to right. By adjusting the stereo spread, it is possible to set all voices to the center or set them from right to left. There is also a stereo motion option that allows this stereo spread to be adjusted by an LFO.
Presets
The synth can store up to 640 presets, 128 of them being multitimbral presets.
Multitimbral
The synth can have up to 4 multitimbral parts. Each part has it complete sound configuration, assignable MIDI channel, keyboard zone, velocity zone, transpose setting and MIDI filter. Additionally, each part can have different voice assignments and/or share some voices.
MIDI Polyphonic expression
MIDI Polyphonic expression is supported by the GS-e7. It was tested using GeoShred, allowing independent pitch control and cutoff for each voice.
![АЛАУДИНОВ у Скабеевой: эти их ВСУ нас НЕ ДОГОНЯТ 😁 [Пародия]](http://i.ytimg.com/vi/an0anqU4WGQ/mqdefault.jpg)
Excelente, Guido! Te parte la cabeza. Felicitaciones totales!!
Sounds gorgeous, and 7 voices is exactly what I most often need (left:right 2:5 or 3:4). :)
Just bought one of those... The G.A.S. is strong in this one.
Fantastic sounding instrument! Would love to use one of these in my music creation 😍😍😍😍😍😍
🇨🇦 💜 🇦🇷
Ooof that has got a lovely sound to it. Unique too, some think thicker and less delicate. Almost alienlike
brutal, felicitaciones!
sounds amazing
Man this sounds killer.
Increíble chicxs!! Que gran instrumento el e7!!
What is chicxs?
@@pirosy1578
Chico and Chica?
@@pirosy1578 inclusive language, I mean girls and boys at the same time :)
Is there any way possible you could implement MIDI response to polyphonic aftertouch? Routed to (at least) VCF cutoff, LFO rate/mount, OSC levels/pitch, VCA? ¿Por favor?
Amazing !!!
The same with a sem filter and I'm over ^^ !! Well...huge great stuff as it is ;) Bravo bravo !!
I do lust for Thee, O Synth!
sounds and looks amazing. Filling a gap in analog, which is not easy. Will you be making more Blue ones soon?
Thank you! We are assembling a few more units right now. Blue ones will be available on Monday.
Can MPE affect anything other than pitch and cutoff though? The feature list seems to imply so.
I'm intrigued, but considering MPE is a major selling point, I'm really hoping more than those 2 parameters can be mapped to MPE pressure and Expression mod sources. X-axis for pitch fine.
It will be mine. Oh yes. It will be mine.
It really has a great character! Are you gonna have a Europe reseller?
We are working on that. However, you can buy directly for us on our online store: shop.gsmusic.com.ar (we provide the synth with a power supply and power cord suitable for most european countries)
Interesting sounds but really out of tune most of the time, would really appreciate a demo that shows it can handle stable pitch as well (as opposed to first version of Deckard's for example)
ua-cam.com/video/E8vrpzvpJ70/v-deo.html
Do you know how I can get one of these in the UK?
You can get one at KMR Audio or Juno Records.
Any direct discounts for Veterans
& an easy payment plan ??
no tengo sitio!!!
If it's available why are you showing a 3D model? I wish you success.
Thank you! That's because the "good" pictures were not available when the video was first made. In the second part, you can see the actual synth.
Fair enuf. I see there are older videos showing the prototype being performed. Phat for sure.
this seems to be a super interesting synth! But to be honest, the sounds in this video are really not good.
Sounds good on my system at home. I don't work for these guys but since I do videos of synths, I'm curious to hear what you thought did not sound good, if you have time to give me some ideas.
@@RandyPiscione I wasn't talking about the technical Soundquality. More the sound design of the patches. The first half of the video is okay - more a matter of taste (i personally find the second sound (demonstrating multitimbrality) a bit cheesy) .
But the second half is a pretty bad noise wash. It sounds hard and undefined.
@@verstaerker Thanks for the reply, appreciate it.
I think they ´re good
@@verstaerker I don’t see what could be wrong with the sounds. I find them ok.
poor first teaser
shit use of the comments section
Poor dumb comment