Thursday, 6 August 2020

MFOS Bi-polar Power supply

This is a excellent PSU


i'VE built an earlier one & it works well.



It uses LM78XX/LM79XX or LM78LXX/LM79LXX regulators
That is, it uses an AC output wall wart.
 DO NOT USE A DC OUTPUT WALL WART.




These are the parts needed:
1  LM7812 +12V Voltage Regulator  LM7812  U1  
1  LM7912 Voltage Regulator  LM7912  U2  
2  Resistor 1/4 Watt 5%  2.4K  R1, R2  
6  1N4004 General Purpose Rectifier  1N4004  CR1, CR2, CR3, CR6, CR4, CR5  
6  Capacitor Electrolytic  3300uF  C1, C2, C3, C6, C7, C8  
4  Tantalum Electro (35V)  1uF  C4, C5, C9, C10  
1  9 to 12 VAC Output Wall Wart  12VAC Output    
1  Optional SPST Switch  SPST    




Tantalum capacitors -- they are polarized.








Links:
http://musicfromouterspace.com/analogsynth_new/WALLWARTSUPPLY/WALLWARTSUPPLY.php

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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Metro Modular - Euro Busboard

Some Pics of the Metro Modular Euro Busboard.
MM1521A

This is a nice easy build.






Sunday, 2 August 2020

Arturia Keystep Pro - saving changes - basic

 To duplicate a pattern and add new changes to it.
 
1. Press COPY + PATTERN
    The pattern slots with stored patterns will flash red
2. press the pattern button you wish to copy
    It's light should go out
3. Press PASTE + PATTERN
4. press the pattern button you wish to paste to.
    It's light should go bright blue 
 
 
-----------------
 
To reload the original version of your Pattern, hold down SHIFT and press SAVE. The OLED screen will display "Pattern reloaded".
 
 
----------------------
To save the whole project
 
Press SAVE & PROJECT


Saturday, 1 August 2020

Radio Music - build pics

Some build pics of the radio music module by Music Thing Modular


These aren't official and I'm in no way affiliated with Music Thing M.
These are just my notes to help trouble shoot, should I run into any probs.
As you can see, I purchased this as a kit from Thonk.

When I first built this, initially it didn't work as I hadn't installed the firmware correctly.



But it's actually a really easy module to build, and I recommend it for a beginner.
There are 2 PCBs

 I usually start with the lowest profile components first.

 When soldering the jacks, button etc, use the faceplate to align everything correctly.


These are headers to connect the two PCBs


It uses a teensy 3.1 0r 3.2


Installing LEDs


You can solder the teensy directly to the pcb, however, using headers makes it easy to remove & test the teensy, away from the module.





The physical build is done.
Next install some audio files to a SD card (32GB).
FAT 16 or 32 is OK
The file structure is this:
16 folders numbered 0 to 15.
They can contain RAW and WAV files (up to 48 in each folder)
No more than 330 files in total.
download this: Empty SD Card File Format

 I use audacity
Audacity - (Windows, Mac, Linux) - http://audacity.sourceforge.net/
 
Format: Mono, 44100
Encoding: "Signed 16-bit PCM"

Github details
https://github.com/TomWhitwell/RadioMusic/wiki/SD-Card%3A-Format-%26-File-Structure


 Firmware
This is where I initially made a mistake.
You can either install the firmware onto the teensy with it plugged into the module
or seperate from the module.

On the underside of the module you need to cut between the two gold tabs when you finally plug the teensy in.
However, don't do this if you plan to first install the firmware with the teensy unplugged.
It's easiest to do it this way.


Once you cut between the tabs, then you will have to make all future firmware updates/ changes
with the teensy connected to the module, and the module receiving power from your modular synth.

Actually installing the firmware is easy.
You can download the software here:
https://www.pjrc.com/teensy/loader_win10.html

The program is just a simple excutable file
teensy.exe


 Go to:
File ---> Open Hex file
The file is:
Radio_Music_2017.2.hex

Go to
Operation, then Program



Links
+ Firmware
+ Teensy
+ PJRC
+ Music Thing


This is a Buchla 272e
I've added this pic as it's probably the inspiration for the Radio Music module.
Don was so forward thinking.
Imagine sampling a radio and using it in a live performance.
As you have probably worked out, the Radio Thing module isn't a radio. But it instead can use radio samples.

The 272e is actually a radio

In fact, there are 4 stereo radios.
Tuning is voltage controlable.
Each radio has a ASR envelope generator and a Sample & Hold.

Also google John Cage and Karlheinz Stockhausen for more info.

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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Ecludian sequencers

In electronic music, you may come across Ecludian Rhythms.
They mostly are associated with patterns and beats.

They were only discovered in 2005 by the Canadian mathematian Godfried Toussaint.
His Book, "The Geometry of Musical Rhythm" discusses this in detail.
And this paper from McGill Uni, Montreal is a good read too.

In practical terms, ecludian sequencers are thus usually trigger sequencers (not melodic).
Patterns are derived from algorithms which come down to us from Euclid's Elements.

Eulcid was a Greek Mathematician who lived in Alexandria in 300BC.
In Ancient Greek, the word Elements is Στοιχεῖα Stoicheia.
This is a name of a very cool trigger sequencer (Eurorack)


The algorithms compute the greatest common divider of 2 numbers.
Ie, the highest number by which both can be divided.
GCD -  Greatest Common Dividers.
For example, the gcd of 8 and 12 is 4

They are interesting as they illustrate a close relationship between Maths & Music.
In a earlier post I discussed the mathematical idea of Lowest Common Multiples (LCM) and how one can also use them in music.

Euclidean Rhythms have the property that their onset patterns and numbers are distributed as evenly as possible.

This idea of distributing numbers evenly is found in many world music patterns from Cuba to Africa.

Ecludian rhythms are calculated from two numbers a larger value & a smaller value.
Larger = length of pattern
Smaller = the number of beats... these need to be distributed evenly across the pattern.
(A third consideration when making a pattern is the offset & rotation of the beats)

Examples: (where x=beat and 0=rest)
2,8 =  x000x000
2,5 = x0x00 (Tchaikovsky’s Symphony No. 6 & Brubeck’s Take Five)
3,4 = x0xx (Trinidad)
5, 16 =  x000x00x00x00x00
5, 8 = x0xx0xx0 (common Cuban cinquillo rhythm)
Here is a variation of the 5, 8 = 0x0xx0xx (Spanish Tango?)

5,16 = 00x00x00x00x00x0 (Brazillian Bosanova)
7,12 = x0xx0x0xx0x0 (West African)
4,9 = x0x0x0x00 (Turkish)
9,16 = x0xx0x0x0xx0x0x0 (central Africa)

If you overlay rhythms of different lengths you can create polyrhythms
By rotating and offsetting the beats and rests you can create new patterns.

Though the Standard use for a Euclidean sequencer is to trigger beats and melodies you can use them to
trigger an envelope. If you then run the envelope through a quantiser you can create melodic sequences.
 The Στοιχεῖα Stoicheia. module also has a companion tonic module which can create melodies from gates.

List of my Fav Ecludian Sequencers
+ Buchla 252e


 The Euclidian Library.
There is a built in Euclidian pattern library... to help generate rhythmic patterns.
 To generate pulse patterns using the Euclidian algorithm, select a ring using the “beats/cycl”
encoder, and press the “RHYTHM SELECT” button so that the Euclidian LED lights up.
Any pulse data in the selected ring will be erased and replaced by the Euclidian solution


rendered in red pulses (however, other pulses can be added).
Turn the “pattern #” encoder to generate each of the Euclidian pulse patterns for the number of
beats in the selected ring. The number of pulses in the current solution will be shown on the
segmented display to the left of the encoder.
To exit Euclidian mode, press the “RHYTHM SELECT” button, or turn the “beats/cycl” encoder
to select a different ring.



+ Pittsburgh Modular Game System
+ Στοιχεῖα Stoicheia.
+ Klasmata - single channel of stocheia but with cv control.
+ ALM Pamelas Workout
+ Pulsar  - Qu-Bit Electronix
+ MI - Grids & Yarns
+ Euclidean Circles v2 from Vladimir Pantelic Musikelektronik (6 tracks)
+ Addac heuristic
+ Snazzy Ardcore
+ 2HP Euclid

Links
+ LCMs - combining two Korg SQ-10s
+ LCM Vs GCD
+ Steve Reich - Clapping Music (Scrolling)

A memory called Empire - Arkady Martine


The Hugo winners were announced yesterday.
http://www.thehugoawards.org/hugo-history/2020-hugo-awards/

This was the best novel winner:

By Arkady Martine
2019 Science Fiction Novel
It was awarded the 2020 Hugo Award for Best Novel


Publisher Tor Books
Publication date 26 March 2019
Media type    Print, ebook
Pages    462 (Hardcover)
ISBN    978-1250186430
Website    https://www.arkadymartine.net/teixcalaan-memory




This is the first installment in the Teixcalaan series.

The sequel is titled "A Desolation Called Peace!"

 

Favourite Sci Fi novels for the last decade

I don't usually write much about Sci fi & Fantasy on this blog, however they have been a major part of my life since I was a kid watching Dr Who, Blade Runner & Star Wars and reading HG Wells, Isaac Asimov, Frank Herbert & Jules Verne. For me, there is symbiosis between this and electronic music.

I think watching these early TV shows subliminally implanted my love for synthesizers & technology .
Dr Who = EMS VCS 3 & the BBC Radiophonic workshop.
Star Wars = Arp 2600
Close Encounters = ARP 2500
Blade Runner = Yamaha CS 80
..... the list goes on, and on.
So if you are into synths, I think there is also a high probability, that you have an interest in Sci-Fi

The genre is huge, so where does one find the best books?
I think the Hugo & the Nebula awards are great places to look.

The finalists for the 2020 Hugo Awards, Lodestar Award For Best Young Adult Book, and Astounding Award for Best New Writer were announced by CoNZealand, the 78th World Science Fiction Convention, on the convention’s YouTube Channel on April 8, 2020 (NZST).

The winner will be announced on the 1st August, 2020.

http://www.thehugoawards.org/hugo-history/2020-hugo-awards/

The Hugo was first awarded in 1953 and is considered the premier award in Science Fiction.
They are chosen by members of Worldcon and the event is named after Hugo Gernsback, the founder of the science fiction magazine Amazing Stories.
 
Here is a list of the best novel category for the last decade (2019 to 2010).
I think if you only read just a few books per year, you can't go far wrong if you read any these titles.
I've also added a few of my personal favorites from the last decade (and before)


2019

The Calculating Stars

Novel by Mary Robinette Kowal

Originally published: 3 July 2018
 This also won the Nebula Award.
 ----------------------------------------------------














  2018

The Stone Sky

Novel by N. K. Jemisin
Originally published: 15 August 2017

This book also won the Nebula Award. 
 --------------------------------------------------

 

 2017

The Obelisk Gate

Novel by N. K. Jemisin
Originally published: 16 August 2016
-------------------------------------------------------- 








  2016

The Fifth Season

Novel by N. K. Jemisin
Originally published: 4 August 2015
 ------------------------------------------------










2015 The Three Body Problem.
  

The Three-Body Problem was originally published in Chinese in 2008. 
The 2014 publication by Tor was the first English-language version.
It is the first novel of the Remembrance of Earth's Past (Chinese: 地球往事) trilogy.
The second and third novels in the trilogy are titled The Dark Forest and Death's End
 
 Cixin Liu, Ken Liu translator (Tor Books)
 

2014
Ancillary Justice

 Ann Leckie (Orbit US/Orbit UK)
Originally published: 1 October 2013 (paperback)

Ancillary Justice is part of the Imperial Radch space opera trilogy.
It is followed by Ancillary Sword (2014) and Ancillary Mercy (2015). (see below)
Apart from the hugo, this book has won a string of awards including
Nebula Award for Best Novel (2014)
BSFA Award for Best Novel (2013)
Arthur C. Clarke Award (2014)
Locus Award for Best First Novel (2014)
 


Ancillary Justice, Ancillary Mercy & Ancillary Sword review

------------------------------------------




 



2013
Redshirts
 John Scalzi

Originally published: 5 June 2012
(Tor Books)



Awards    Hugo Award for Best Novel (2013)
Locus Award for Best Science Fiction Novel (2013)
ISBN    978-0-7653-1699-8








2012
Among Others, Jo Walton (Tor)

Originally published: 18 January 2011 (Hardcover)

This book also won the Nebula Award.













2011
Blackout/All Clear, Connie Willis (Ballantine Spectra)
This book also won the Nebula Award.
Originally published: 2 February 2010













2010
This years awayd was held in Melbourne, Australia.
It was a tie between two books:
  • The City & The City, China Miéville (Del Rey; Macmillan UK) (tie)
  • The Windup Girl, Paolo Bacigalupi (Night Shade) (tie)

 The City & The City, China Miéville (Del Rey; Macmillan UK)


It's a crime novel.
 This was made into a TV series.
Originally published: 29 April 2009 (Hardcover)
















 The Windup Girl, Paolo Bacigalupi (Night Shade)
This book also won the Nebula Award. 

Originally published: 1 September 2009 (Hardcover)

My personal favourites from this decade:
Among Others, Jo Walton
Annihilation by Jeff VanderMeer
Ancillary Justice by Ann Leckie

---------------------------------------------------------------------------
More Personal Favourites:

The Left Hand of Darkness

 

Novel by Ursula K. Le Guin

Ok, this wasn't written in the last 10 years, but if you haven't read any
books by Ursula, this is a great place to begin.
It also won the Nebula  
First published as an Ace paperback original (and later in hardcover) in 1969. 
Her career spans 60 years. 
Also read "A wizard of Earthsea" (1968)
Sadly, Ursula passed away in 2018.
---------------------------------------------------








The Martian by Andy Weir
  (Broadway Books, 2014)

----------------------------------------------------------

















 

The Goblin Emperor by Katherine Addison

(Sarah Monette)


(Tor Books, 1st April, 2014)

---------------------------------------------------------------------

 

 

 

  Dune

Novel by Frank Herbert
OK, another one that's more than 10 years old  but it's a classic.
There are another 5 more books in the series.
Originally published: 1 August 1965
Chilton Book Company 
First Edition : blue cloth boards, the rear panel has a map.
The price on the jacket flap should be $5.95 and the rear flap should have the Chilton address across four lines.

Prior to its publication in book form, parts of Dune were published in Analog Magazine as a three part serial called Dune World in 1963-1964 and later as a five part serial called Prophet of Dune in 1965. 
  
 This book also won the Nebula Award. 

The Dune Universe is huge. 
For more info:
+ Dune - The Chronological order of the novels
+ Dune Universe Timeline


----------------------------------------------------- 
I don't think any discussion of Sci Fi is complete without Isaac Asimov.
Foundation & I, Robot are classics that still influence us today

+ Foundation - Isaac Asimov's
+ I, Robot - Isaac Asimov - novels & Magazines









 -----------------------------------------------------------------------------------
 NeuroMancer (1984)
  by William Gibson 


First published: July1, 1984 



















Ancillary Sword (2014) 


Ann Leckie (Orbit US/Orbit UK)
Publication date
7 October 2014 (paperback)

This is part two of the
Imperial Radch space opera trilogy.


Ancillary Justice, Ancillary Mercy & Ancillary Sword review












Ancillary Mercy (2015)

Ann Leckie (Orbit US/Orbit UK)
Publication date

6 October 2015 (paperback)

The stunning conclusion to the Imperial Radch trilogy 


Ancillary Justice, Ancillary Mercy & Ancillary Sword review










Sci Fi links
+ Hugo Awards Best Sci Fi novels of the 1950's
+ Hugo Awards Best sci fi novels of the 1960's
+ Hugo Awards Best Sci Fi novels of the 1970's
+ Hugo Awards Best Sci Fi Novels of the 1980's
+ Hugo Awards Best Sci Fi novels of the 1990's
+ Hugo awards Best sci fi novel of the 2000's (2000 - 2009)
+ Hugo Awards Best Sci Fi novels for the decade 2010-2019
+ Foundation - Isaac Asimov's
+ Dune - The Chronological order of the novels
+ Dune Universe Timeline
+ I, Robot - Isaac Asimov - novels & Magazines
+ Star Wars 
+ vorkoisgan saga reading order - Lois McMaster Bujold
  

--------------------------------------------

sci Fi Index

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