easy_cv
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easy_cv [2016/07/16 16:01] phatline [Brain] |
easy_cv [2016/08/14 23:24] phatline [Example for a Filterbank] |
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| ====== EASY CV ====== | ====== EASY CV ====== | ||
| + | |||
| + | Test Equipment: CV-Destination MB33 MAM:\\ | ||
| + | {{:phatline:easy-cv-testequipmentv1.jpg?600|}} | ||
| + | |||
| ===== Introduction ===== | ===== Introduction ===== | ||
| - | Digital created LFO+ENV with CV-Output. | + | All Parameters are saved as a preset as a song (programchange...)\\ |
| - | No Displays, No Menues, Minimal buttons, much Scopes, much Led-Ring-Rotarys (Planed for LRE-8x2CS), one big UI with complete functions for one LFO+ENV Voice... switching between the UI-Voices is done from the BREAKOUTMODULES...to this later | + | Digital created LFO+ENV with CV-Output.\\ |
| + | No Displays, No Menues, Minimal buttons, much Scopes, much Led-Ring-Rotarys (LRE-8x2CS)\\ | ||
| + | one big UI with complete functions for one LFO+ENV Voice + 4xChannelstrip Controlls... \\ | ||
| LFO+ENV are mixed together softwareside, to use only one CV-Output\\ | LFO+ENV are mixed together softwareside, to use only one CV-Output\\ | ||
| - | 8xCV-Outputs (VOICES) are supported > if u are on a VCF+VCA-Setup = 4 Voices on the Analog-Side (4xFilterbank)\\ | + | Each Channel = Filter need 8xCV-Outputs\\ |
| Copy Paste for LFOs and ENVelopes between the Voices\\ | Copy Paste for LFOs and ENVelopes between the Voices\\ | ||
| - | Copy Paste for a Songa aka Preset aka Bank aka Program(change)\\ | + | Copy Paste for a Song aka Preset aka Bank aka Program(change)\\ |
| Jam Style Pattern load (next Preset Display) + Preset Morph between Current-Preset and Next-Preset\\ | Jam Style Pattern load (next Preset Display) + Preset Morph between Current-Preset and Next-Preset\\ | ||
| + | The Early Design was a EuroRack-Module: | ||
| A Breakoutmodule for each CV-Output, with Depth-rotary, Focusswitch (Pushrotary), 2x Scopes (LFO+ENV) and LFO/ENV-Switch to show on one Display the Mixed Waveform & to switch the Rotary to "ENV" or "LFO" Mode (there is only space for one Encoder - maybe just make PAN Style, instead of 2 individual level -maybe more live feel?, how ever when using an 3Stage switch, i could disable MIX-View, or display it on ENV or LFO...maybe a good choise ;) ) | A Breakoutmodule for each CV-Output, with Depth-rotary, Focusswitch (Pushrotary), 2x Scopes (LFO+ENV) and LFO/ENV-Switch to show on one Display the Mixed Waveform & to switch the Rotary to "ENV" or "LFO" Mode (there is only space for one Encoder - maybe just make PAN Style, instead of 2 individual level -maybe more live feel?, how ever when using an 3Stage switch, i could disable MIX-View, or display it on ENV or LFO...maybe a good choise ;) ) | ||
| The Depth-rotary has no Ledring, want to display it as a bar or as Value in the scope... | The Depth-rotary has no Ledring, want to display it as a bar or as Value in the scope... | ||
| - | Whole thing will not be compatible on MB-CV concepts... i will copy code snippets and so on, but i have to understand it from scratch... anyhow this is not generic | ||
| ===== FrontPanel ===== | ===== FrontPanel ===== | ||
| ==== Brain ==== | ==== Brain ==== | ||
| Line 22: | Line 28: | ||
| -Another option is to take a **PUSH-ENCODER** for **LOAD** & **STORE** > and load and store it by pushing it... would free 2 buttons for other functions.\\ | -Another option is to take a **PUSH-ENCODER** for **LOAD** & **STORE** > and load and store it by pushing it... would free 2 buttons for other functions.\\ | ||
| MORPH?: \\ | MORPH?: \\ | ||
| - | You have the Program with the new ENV+LFO @ your **LOAD** Display?? | + | -The Upper 7 Segment LED- Display: is the **LOAD Display** indicate the new Program with ENV+LFO |
| - | You have the current Program with ENV+LFO @ **ACTUAL** with morph you crossfade between both\\ | + | -The downer7 Segment LED- Dsipaly: is the **STORE Display** it indicates also the current Program with ENV+LFO\\ |
| + | --with morph you crossfade between both Presets (be carefull, first Store the current Preset\\ | ||
| **Paste** & **Copy** do their job @ the whole PROGRAM Memory\\ | **Paste** & **Copy** do their job @ the whole PROGRAM Memory\\ | ||
| **ENV-PASTE** & **ENV-COPY** do their job @ the selected Envelope > (ENV-Voice selection is done by the breakout Modules) ... LFO..same\\ | **ENV-PASTE** & **ENV-COPY** do their job @ the selected Envelope > (ENV-Voice selection is done by the breakout Modules) ... LFO..same\\ | ||
| Line 43: | Line 50: | ||
| **Duration:** interpret Midisync in trippled, whole notes or whatever...\\ | **Duration:** interpret Midisync in trippled, whole notes or whatever...\\ | ||
| - | **DEPTH:** is the maximal Value of FALL and RISE and SUSTAIN, i know i loose resolution with this...but i have to have a memory filterbank,...doing depth instead with Potentiometers on Filtermodules... is no memory... | + | **DEPTH:** is the maximal Value of FALL and RISE and SUSTAIN, i know i loose resolution with this...but i have to have a memory filterbank,...doing depth instead with Potentiometers on Filtermodules... would give no memory... |
| ==== BreakOut ==== | ==== BreakOut ==== | ||
| + | **this will not be supportet > since i dont want a Euro-Module Setup > i want one big filterbox.**\\ | ||
| 1. Discharged UserInterface for the Brain in "Island mode" (Scopes + Digital-CV-Amount)\\ | 1. Discharged UserInterface for the Brain in "Island mode" (Scopes + Digital-CV-Amount)\\ | ||
| 2. CV-Breakout EuroModule to be located near the CV-Destination (example: a Filter).\\ | 2. CV-Breakout EuroModule to be located near the CV-Destination (example: a Filter).\\ | ||
| Line 59: | Line 67: | ||
| **Envelope Scope:** show the ENV-Waveform \\ | **Envelope Scope:** show the ENV-Waveform \\ | ||
| or the Mixed-CV-Output-Waveform (when Switch is in LFO Mode)\\ | or the Mixed-CV-Output-Waveform (when Switch is in LFO Mode)\\ | ||
| - | and show the Envelope-Amount with a BAR\\ | + | and show the Envelope-Amount with a BAR or as numeric Value?\\ |
| **MIXED CV Plug:** CV-Output > Mixed Waveform ENV+LFO\\ | **MIXED CV Plug:** CV-Output > Mixed Waveform ENV+LFO\\ | ||
| **Switch @ ENV:**\\ | **Switch @ ENV:**\\ | ||
| Line 71: | Line 79: | ||
| ==== VCA-VCF ==== | ==== VCA-VCF ==== | ||
| - | THE VCA and the VCF are controlled with each one CV - each CV has a LFO and a ENVELOPE digitaly mixed... fixed in routing.\\ | + | **CVś(AOUT):**\\ |
| - | {{ :phatline:Easy-CV-VCA-VCF.png?direct&260 |}} | + | 1.VCF-CUT\\ |
| - | basicly a simple VCA (MS20Like) that drives the input of a Audio transformator 1:3 which is a Neutrik NTE10-3 (9€)\\ | + | 2.VCF-RES\\ |
| - | this "Tesla" Hi Gain - goes now thru the Post-VCA-Gain-Potentiometer - which then overdrives the 303 Filter (my prototype was a Freebase 383)\\ | + | 3.FILTER DRIVE\\ |
| - | sound now goes to the Post-VCF-Gain-Potentiometer\\ | + | |
| - | now sound goes into a OP-Amp - to have the change for a light overdrive\\ | + | 4.VCA-ENV\\ |
| - | From this point a EFX-Send Potentiometer send the Processed Signal to a extra Output (EFX-Send)\\ | + | 5.VCA-DRIVE\\ |
| - | With the +DRY-Switch, we switch the orginal Signal additional to this EFX-Send-Potentiometer (or not)\\ | + | |
| - | Parallel to the EFX-Send Potentiometer is the DRY/WET Potentiometer it Pan between Orginal and Filtered Sound.\\ | + | 6.DRY-WET (Orginal vs Filtered Mixer)\\ |
| - | after DRY/WET come the Volume-knob and the Audio outs...\\ | + | 7.Send 2 EFX1\\ |
| + | 8.Send 2 EFX2\\ | ||
| + | So 1x 8AOUT-Module for each "Channelstrip", makes a total of 4x8AOUT-Modules.\\ | ||
| + | The Module of Choise is a 16Bit, since i control with the the same AOUT-Channel ENV+CUT-OFF...\\ | ||
| + | so there is no analog potentiometer for Cutoff or resonance... it is all saved in the Preset.\\ | ||
| + | |||
| + | the VCA is basicly a simple VCA (MS20Like) or something\\ | ||
| + | the VCF are a 303 18dB for the 24db Filter it will be a SSM2044, where bords are available.\\ | ||
| === Original Schematics 303 - VCA-VCF === | === Original Schematics 303 - VCA-VCF === | ||
| {{ :phatline:VCA-VCF-303-orginal.png?direct&900 |}} | {{ :phatline:VCA-VCF-303-orginal.png?direct&900 |}} | ||
| - | + | In order to not use those **overprized MATCHED-PAIR-TRANSISTORS** (over 2€ on the cheapest place) i have to use standart Transistors and make a **VBE-MATCH** on my own, i have already a PCB from here - to measure the transistors with a Multimeter: | |
| - | === Mod Sources === | + | https://midisizer.com/other/vbe-matching/ |
| - | FIXME Fill with 303 mods | + | |
| - | take orginal VCA (have a bunch of this ICS) or make MB33 Style with standart components... | + | |
| ==== Example for a Filterbank ==== | ==== Example for a Filterbank ==== | ||
| - | Here are 8Envelopeś 4xfor VCF 4xfor VCA... in fact there could be used more then this for example 8xVCF and 8xVCA...since the BREAK-OUT-Modules are Modular, and they share the same "Main-UI"...the only limiting factor is the CODE...i am not a C-Guru, and maybe i will still have timing problems with 8x CV-Outs...we will see. | + | EUROMODULE-BASED >>> It is not planed to do it that way (just for you to get some input) |
| {{ :phatline:Easy-CV-Example.jpg?direct&900 |}} | {{ :phatline:Easy-CV-Example.jpg?direct&900 |}} | ||
| - | **I will use it to filter:**\\ | ||
| - | 2xGuitar-Loopstations\\ | ||
| - | 1xGuitar\\ | ||
| - | 1xPercussion-Master\\ | ||
| + | A not EUROMODULE-BASED Version of something like this is the FILTERBOX: \\ | ||
| + | (this is the Design I prefer @ the moment) | ||
| + | {{:phatline:easy-cv-filterbox.png|}} | ||
| + | |||
| + | Filterbox OneChannel > first idea of Block-shematic: | ||
| + | {{:phatline:filterbank-channelstrip.jpg|}} | ||
| ===== General Design ===== | ===== General Design ===== | ||
| - | The panel size is 3U, Eurorack compliant | + | The Panel is made of transparent but shadet (black transparent) Plexiglass.\\ |
| + | The Panel is directly mounted into a Flightcase.\\ | ||
| + | The 3x LRE8x2 (LEDRING) are mounted with the Encoder Nuts, the rest of the PCBs are mounted with normal thruhole screws.\\ | ||
| ==== FrontPanel ==== | ==== FrontPanel ==== | ||
| ==== PCBs ==== | ==== PCBs ==== | ||
| + | **The Analog-IO Board on the Backpanel, holds:**\\ | ||
| + | -the ENV-VCAs\\ | ||
| + | -the DryWet-VCAs, Filter-Releay-Switch\\ | ||
| + | -SEND-EFX-VCAs\\ | ||
| + | -the Summing Mixer\\ | ||
| + | -the Ducking-Cross-AMP-Follower+Ducking-VCAs\\ | ||
| + | -VCF+ENV-VCA-Distortion-Driver-VCAs\\ | ||
| + | -the Connectors to connect the Filter, AOUT, Poti-Boards\\ | ||
| - | The Analog Circuits (VCF+VCA) get sandwitch as normal (not90° angeled) | + | Left-Part of the Brain on Breathboard: \\ |
| - | + | OLED-Display \\ | |
| - | ==== 3D View of Sandwitches ==== | + | Button: ShadowSE/ITT\\ |
| + | ENCODER: with built in Pushswitch\\ | ||
| + | a early state with 7Segment Displays to indicate the Patches\\ | ||
| + | {{:phatline:proto-preset.jpg?400|}} | ||
| - | FIXME make concept | ||
| ==== 1. UI Parts Listing ==== | ==== 1. UI Parts Listing ==== | ||
| === BRAIN + BREAKOUT === | === BRAIN + BREAKOUT === | ||
| - | * [[https://www.thonk.co.uk/shop/3-5mm-jacks/| Jacks 3.5mm @ Thonk]] | + | * 6,3 Neutrik Connector\\ |
| - | * [[http://at.rs-online.com/web/p/kippschalter/7347145|SPDT Switch ON-OFF-ON @ Rs-components]] | + | * [[http://at.rs-online.com/web/p/kippschalter/7347145|FLASH-Switch @ Rs-components]] |
| ^ Value ^ Type ^ Qty ^ | ^ Value ^ Type ^ Qty ^ | ||
| - | |3.5mm Jack |Vertical PCB-Mount |13 | | ||
| |Switch |SPDT Vertical PCB-Mount ON-OFF-ON |1 | | |Switch |SPDT Vertical PCB-Mount ON-OFF-ON |1 | | ||
| FIXME Fill Table | FIXME Fill Table | ||
| Line 127: | Line 153: | ||
| * [[https://www.thonk.co.uk/shop/alpha-9mm-pots/|Alpha Pots @ Thonk]] | * [[https://www.thonk.co.uk/shop/alpha-9mm-pots/|Alpha Pots @ Thonk]] | ||
| * [[where_to_order_components#knobs|Knobs Suppliers]] | * [[where_to_order_components#knobs|Knobs Suppliers]] | ||
| - | * FIXME need special 4gang 50KB potentiometers for a STEREO Resonance (stereo filter, one UI) | + | * FIXME which Values for the Audio-Mixer? |
| - | * FIXME need special 4gang xxKB (50?) potis for a Stereo DRY/WET Mix | + | |
| - | * FIXME need special 2gang xxKB (50?) potis for EFX Send Mix Stereo | + | |
| - | * FIXME need special 2gang 50KA potis for CUT-OFF Stereo | + | |
| - | * FIXME need special 2gang Post Transformator Potentiometer (Value have to look in my prototype which is used) | + | |
| - | ^ Value ^ Type ^ Qty ^ | ||
| - | |5K |Linear |x | | ||
| - | |10K |Linear |x | | ||
| - | |50K |Linear |x | | ||
| - | |50K |Logarithmic |x | | ||
| - | |100K |Linear |x | | ||
| - | |1M |Linear |x | | ||
| - | |2M? |Linear |x | | ||
| - | |Knobs |Soft/Plastic/Alu|x | | ||
| - | |||
| - | |||
| - | ==== 2. Analog Parts Listing ==== | ||
| - | |||
| - | === VCA-VCF-Board === | ||
| - | |||
| - | FIXME Fill Table | ||
| ==== 3.Footprint Making in KiCAD ==== | ==== 3.Footprint Making in KiCAD ==== | ||
| Line 154: | Line 160: | ||
| * ALPS Pots | * ALPS Pots | ||
| * Alpha Pots | * Alpha Pots | ||
| - | * 3,5mm Jack | + | * 6,3mm Jack |
| * Switch | * Switch | ||
| * Momentary Switch | * Momentary Switch | ||
| - | * 7 Segment LED Display | + | * SSD-Displays |
| * OLED DIsplay | * OLED DIsplay | ||
| * Rotary Encoder | * Rotary Encoder | ||
| Line 172: | Line 178: | ||
| a.Left-Brain\\ | a.Left-Brain\\ | ||
| b.Right-Brain\\ | b.Right-Brain\\ | ||
| - | - LRE8x2CS - is a generic PCB which i already have (fairlightiiś)\\ | + | - 3x LRE8x2CS - is a generic PCB which i already have (fairlightiiś)\\ |
| - | - BREAKOUT PCBs (maybe have to sandwitch because of shiftregisters and less space)\\ | + | - Backpanel PCB\\ |
| - | - FILTER PCBs (have to sandwitch)\\ | + | - FILTER PCBs\\ |
easy_cv.txt · Last modified: 2016/08/22 02:03 by phatline
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