Shruti-1 | Mutable instruments

Discussions about anything analog, digital, MIDI, synth technology, techniques, theories and more.
User avatar
Altitude
Expert Member
Expert Member
Posts: 1220
Joined: Sun Sep 24, 2006 7:25 pm
Location: Michigan

Shruti-1 | Mutable instruments

Post by Altitude » Mon Apr 05, 2010 2:10 am

Mods, nuke this if it's already come up..

Shruti-1 | Mutable instruments

http://mutable-instruments.net/

Image





Digital oscillators
Available for all oscillators, and band-limited

* impulse train (high-pass filtered square wave) with pulse-width modulation
* square with pulse-width modulation
* triangle with waveshapping
* sawtooth with waveshapping

Available for oscillator 1 only

* sawtooth with sweepable resonance (casio cz-like). This creates a resonance directly in the oscillator output, without using the filter
* simplistic FM (1>2 configuration), with adjustable modulation index and frequency ratio
* 8bit-like harsh waveforms with wavetable scan
* poor man’s square with pulse-width modulation (plenty of aliasing but fat for basses)
* colored noise (sweep from low-pass filtered white noise -> white noise -> high-pass filtered white noise)
* lo-fi vowel synthesis (think “speak and spell”) with vowel morphing
* wavetable (16 waveforms) with wave morphing, for drones
* “sweep” oscillator which scans through all the band-limited waveforms

Mixer

* adjustable oscillator balance
* mixing algorithms: simple sum, simple sum with synchronization, ring modulator, xor modulator
* extra sources: noise & sub-oscillator (triangle or square)

Filter

* CEM3379 analog VCF/VCA, with external audio input

Modulation

* LFOs: 2, with square, sawtooth, triangle, sample & hold shapes. Syncable to tempo
* envelopes 2 ADSR
* modulation matrix: up to 14 source -> destination connections. Adjustable modulation amount in the -100% — 100% range
* modulation sources:
o LFO 1/2
o step sequencer
o arpeggiator gate
o mod. wheel
o pitch bender
o DC offset
o CV inputs 1/2/3
o noise generator
o ENV 1/2
o note velocity
o note number (eg for filter tracking)
o keyboard gate
* modulation destinations:
o filter cutoff
o VCA gain
o pulse width/Parameter osc. 1/2
o pitch osc. 1/2
o vibrato (fine pitch, applied to osc 1 & 2 simultaneously)
o oscillator balance
o noise level
o subosc level
o resonance

Performance

* step sequencer: 16-steps (4-bits value per step). Adjustable cycle length
* arpeggiator: 15 rhythmic patterns, each of them with up/down/up&down/random variants. 1-4 octave range
* clock: internal, 40-240 BPM with swing, or external (MIDI)
* tuning: alternative tuning schemes/keyboard mappings: pythagorean scale, just temperament, 1/4 tone on E/A/B, Melakarta ragas
* “patch performance”: custom page in which 4 user-selectable parameters can be assigned to the 4 editing pots

System and memory

* MIDI implementation: notes, controllers, clock synchronization, patch editing by NRP, individual patch load/save by SysEx
* patch memory: 16-patches stored in EEPROM
* easter egg
* firmware update by SysEx

Hardware and connectors

* power: 2.1mm connector, requires 7.5V-9V 300mA supply (can be unregulated). Center pin positive (+), outer collar negative (-)
* audio input/output: 6.35 Jack (Mono audio out), 6.35 Jack (External signal in)
* cv inputs: 3 CV inputs (0-+5 V, labelled “HACK_ME!” on the PCB) for easy experimentation with controllers, accessible through pin header on the motherboard
* MIDI: in, out (logical thru + patch dumps)
* serial: tx/rx/reset pins for interfacing with an usb->serial chip, for on-chip firmware development
* controllers:
o 12 facade LEDs (current page / modulation matrix visualization)
o backlit 2×16 LCD display
o 4 pots for patch editing
o volume and input gain pot
o 5 navigation switches, one inc/dec switches pair

115 euro

User avatar
tallowwaters
Moderator
Moderator
Posts: 4998
Joined: Thu Aug 25, 2005 4:11 am
Gear: LC-MS/MS
Location: snake's belly in a wagon rut

Re: Shruti-1 | Mutable instruments

Post by tallowwaters » Mon Apr 05, 2010 4:37 am

Thanks for the heads up. Looks awesome, especially the hackable DSP. I think Stab Frenzy was threatening to make something like this once upon a time.
Brains can be used like a "stress ball," but only once.

User avatar
JayEm
Junior Member
Junior Member
Posts: 240
Joined: Tue Jan 15, 2008 3:41 am
Real name: Jonathan
Gear: KorgPoly800 Monotron MonotronDuo MonotronDelay Monotribe VolcaBass MS20Mini MS2000 MFB522 Arturia Minibrute Yamaha CS-15D Tama TechstarTS305
Band: datapark / KNUCKLEFACE / JayEm
Location: London, ON
Contact:

Re: Shruti-1 | Mutable instruments

Post by JayEm » Mon Apr 05, 2010 4:50 am

I read about this awhile back.

So many of these kits are nifty ideas but I'd never put them together.
w00t

User avatar
Sir Ruff
Synth Explorer
Synth Explorer
Posts: 3519
Joined: Tue May 09, 2006 11:55 pm
Gear: Two persimmon modulators and a frequency adjudicator.
Band: Ruff in the jungle
Location: Philadelphia

Re: Shruti-1 | Mutable instruments

Post by Sir Ruff » Mon Apr 05, 2010 8:14 pm

wow... looks great, especially for the price! Like a very dirty version of the evolver?

Interesting choice using the 3379 which is no great pinnacle of analog filters, but it will probably sound better than the new CEMs used in the DSI stuff! It certainly sounds fine on the ensoniq's that use it.

I would certainly get my hands dirty trying to build it, but the lack of a case would be my downfall in the end. :?
Do you even post on vse bro?

User avatar
Altitude
Expert Member
Expert Member
Posts: 1220
Joined: Sun Sep 24, 2006 7:25 pm
Location: Michigan

Re: Shruti-1 | Mutable instruments

Post by Altitude » Mon Apr 05, 2010 10:14 pm

Sir Ruff wrote:wow... looks great, especially for the price! Like a very dirty version of the evolver?

Interesting choice using the 3379 which is no great pinnacle of analog filters, but it will probably sound better than the new CEMs used in the DSI stuff! It certainly sounds fine on the ensoniq's that use it.

I would certainly get my hands dirty trying to build it, but the lack of a case would be my downfall in the end. :?

I'm working on a case now and I will make it available when the production units ship.

paugui
Active Member
Active Member
Posts: 355
Joined: Fri Aug 19, 2005 12:47 pm
Location: Marinha Grande, Portugal / Oslo, Norway

Re: Shruti-1 | Mutable instruments

Post by paugui » Mon Apr 05, 2010 10:43 pm

The lack of case seems to be my only complain...

The demos sound really good, I definitely wouldn't mind getting one.
I just wouldn't say I'd like to get two because with the price for a monophonic unit, I'm sure a 8 voice polyphonic one (maybe with an extra controls) would be really nice.

When the case becomes available, I'm sure I am going to get one and try to DIY :P

User avatar
clusterchord
Active Member
Active Member
Posts: 742
Joined: Sun Oct 02, 2005 8:35 pm
Real name: Tomislav
Band: Nimbus Dei
Location: Zagreb, Croatia
Contact:

Re: Shruti-1 | Mutable instruments

Post by clusterchord » Tue Apr 06, 2010 12:39 am

at first i wasn't as excited, considering you can get a 8voice microwave for 350 - 400eur, but after checking several pages of demos (page6 and onwards..to be precise) with some very special sounds, i became really interested.

on paper it does look like a mono voice of a microwave, but the filter has been voiced slightly different, with more bite and edge. more like esq1. add other extra goodies, like modulations/arp/seq etc, and its a very appealing package.

considering the price, definetely a great deal if you are missing a true hybrid wavetable instrument in your setup.


even tho i have a mw, im thinking i'd want to pick one of these .. hard to fight GAS when something is so cheap
Image

jupiter · oberheim · prophet · sh · moog · andromeda · ppg wave · vs · waldorf · yamaha · eii · casio
rhodes · solina · acetone · eurorack · system100 · förster · lexicon · eventide · space echo · svc350 etc

User avatar
loungedumore
Active Member
Active Member
Posts: 638
Joined: Tue Jan 23, 2007 10:25 am
Gear: iMac | iPad 2| iPad Air
Beatstep Pro | Mpx8
Volca bass, Keys ,beats
Monotribe | MS20 | SQ1
Minibrute | Midi4+
Graphite 49 | EIE
Band: Death By Media
Location: Indiana
Contact:

Re: Shruti-1 | Mutable instruments

Post by loungedumore » Tue Apr 06, 2010 5:29 am

Looks ( more like sounds) great .
Something about the sound reminded me of the impOSCar ... and that's a good thing !
Some wish to leave their mark ... I want to leave a scar .
http://soundcloud.com/death-by-media

User avatar
Altitude
Expert Member
Expert Member
Posts: 1220
Joined: Sun Sep 24, 2006 7:25 pm
Location: Michigan

Re: Shruti-1 | Mutable instruments

Post by Altitude » Tue Apr 06, 2010 12:27 pm

yay! mine is shipping!

User avatar
diezdiazgiant
Active Member
Active Member
Posts: 253
Joined: Thu Jan 12, 2006 9:32 am
Gear: a computer and some odd bits of junk and microphones
Band: jizzflap f**k
Location: Chicago

Re: Shruti-1 | Mutable instruments

Post by diezdiazgiant » Wed Apr 07, 2010 7:34 pm

sounds bad a*s, hope this takes off
Image
blunted daydreaming

User avatar
stikygum
Active Member
Active Member
Posts: 681
Joined: Thu Feb 15, 2007 10:21 pm
Location: SOS - Substance over Style

Re: Shruti-1 | Mutable instruments

Post by stikygum » Wed Apr 07, 2010 10:58 pm

When can we catch it? Looks fun.
"MTV's gaudy overexuberance contributed to the trivialization of the one thing it had been initiated to support, music" - Rik Millhouse

User avatar
Sir Ruff
Synth Explorer
Synth Explorer
Posts: 3519
Joined: Tue May 09, 2006 11:55 pm
Gear: Two persimmon modulators and a frequency adjudicator.
Band: Ruff in the jungle
Location: Philadelphia

Re: Shruti-1 | Mutable instruments

Post by Sir Ruff » Thu Apr 08, 2010 8:18 pm

Altitude wrote:
Sir Ruff wrote:wow... looks great, especially for the price! Like a very dirty version of the evolver?

Interesting choice using the 3379 which is no great pinnacle of analog filters, but it will probably sound better than the new CEMs used in the DSI stuff! It certainly sounds fine on the ensoniq's that use it.

I would certainly get my hands dirty trying to build it, but the lack of a case would be my downfall in the end. :?

I'm working on a case now and I will make it available when the production units ship.

Awesome, please let us know when you have them available.

I agree with CChord that this does look awfully similar to the MW series (and admittedly I've already got an XT), but there is something neat about such a potentially interesting synth in such a small package.
Do you even post on vse bro?

Ashe37
Moderator
Moderator
Posts: 3790
Joined: Mon Jan 19, 2009 3:43 pm
Real name: Unpronounceable
Gear: Ensoniq SD-1/32,SQR,VFX,ESQm
Virus Indigo, M3-61 , MS2000BR, Volca Bass
Emu XL-7, Matrix 6r
TG-33, K3m, Blofeld, Micron, Mopho, BS II, JV-1080
Band: Eridani V
Location: Central VA

Re: Shruti-1 | Mutable instruments

Post by Ashe37 » Sat Apr 10, 2010 9:41 am

and they're discontinued due to lack of 3379s....

User avatar
Altitude
Expert Member
Expert Member
Posts: 1220
Joined: Sun Sep 24, 2006 7:25 pm
Location: Michigan

Re: Shruti-1 | Mutable instruments

Post by Altitude » Sat Apr 10, 2010 11:43 am

Yep, saw that coming but there already is a teaser up mentioning SSM..

paugui
Active Member
Active Member
Posts: 355
Joined: Fri Aug 19, 2005 12:47 pm
Location: Marinha Grande, Portugal / Oslo, Norway

Re: Shruti-1 | Mutable instruments

Post by paugui » Tue May 04, 2010 3:28 pm

I paid for mine yesterday (fortunately someone drop his/her order) and hopefully it will be a fun time of DIYing :P
The sound of the demos was too good to resist the appeal of DIYing :P

By the way, is it hard to assemble?
I have a friend of mine that can help me if anything gets complicated, but how was your experience assembling one?

And what do you guys who already have yours assembled think of them?

Post Reply