Binaural Ogunator

[vc_row full_width=”” section_separator_top_height=”” section_separator_top_height_tablet=”” section_separator_top_height_mobile=”” section_separator_bottom_height=”” section_separator_bottom_height_tablet=”” section_separator_bottom_height_mobile=”” bklyn_section_anchor_id=””][vc_column][vc_column_text]Binaural Ogunator

The Binaural Ogunator is part of the project Erzulies Traum.

The Binaural Ogunator is a kinetic sound sculpture using silk, computer controlled motors and 2-channel sound system. Two triads of sinusoidal signals are slowly changing frequencies against each other (binaural beats) to create a permanent shift from deep drones to a fast 6/8 rhythm and back.
The sound is synchronized with 3 computer controlled motors moving flags of red and black silk.



The sound of the Binaural Ogunator is composed using a phenomenon known as binaural beats: two sinusoidal signals with slightly different frequencies produce a low frequency pulsation dependent on the difference of the two tones. Normally you get the best effect by listening to it with headphones, each signal in one ear. For the Ogunator we used a 2 channel sound system so people can move around in the room.

We used a custom max/MSP patch to create 3 sinusoidal signals at each channel. The tuning of the signals of one channel constantly changes over a period of 11 minutes to create a shift from deep drones to a fast 6/8 rhythm and back.

Wandering around in the installation the listener is constantly changing the mix of the resulting pulsations because of his position to the speakers and reflections in the room. The accentuation of the pattern is changing and shows the ambiguity of the 6/8 rhythm.

Tuning of the sinusoidals to get the binaural beats of the Ogunator:

For a short moment when both channels are in tune (state A) there is no puls. As soon as channel 2 starts changing frequencies a slow pulse developes, speeding up over 10 min time until state B.  Because of the different shifts of the 3 sinusoidals there is a resulting rhythm which is the basic pattern of african 6/8 rhythms and also the rhythm played in the ritual we visited. In state B the rhythm reaches the tempo of the drumming in the ritual.

motor control:

For spinning the flags we use motors for car windscreen wipers, controlled by a custom software written in max. The software is talking to an Arduino board to change direction and speed of the motors using pwm signals, then send to two RN-VN2 modules.

The motors have 6 different states of movements dependent on the tempo of the music:

1. don’t move
2. shaking
3. slow movements (5 possibilities differing in acceleration and speed)
4. rapid movements (5 possibilities differing in acceleration and speed)
5. spinning
6. slow down

There is no abrupt transition from one state to another but a continuous shifting of probabilities to choose a certain state. This probability shift is the same for all three motors, but the decisions what to do is choosen seperatly for each motor.

So the flags behave in a related way but seem to have their own plan, moving sometimes alone, unisono or in call and response style.[/vc_column_text][/vc_column][/vc_row]

Distant Presences II


Photo: blackhole-factory
Ethernet Orchestra • Distant Presences II • Sunday 14th November, 2010
11.30 am Germany UTC+1 CET  / 10.30 am UK / Sydney 9.30cpm UTC+11  EST.
Check your local time – World Clock
“Distant Presences” is an improvised sound work which reflects the nature and aesthetic of the ensembles dispersed interaction. As divergent musical cultures meet in improvisation, the work is a meditation on the multifarious nature of location and being. It forms part of an ongoing series of networked improvisations curated by for “Explorations in Sound” Vol 4.
Ethernet Orchestra is the research project of Roger Mills at the Faculty of Arts and Sciences, University of Technology, Sydney. It is an investigation of networked improvisation, examining cognition, intercultural collaboration and learning in networked audio platforms.
Braunschweig, Germany
Elke Utermoehlen – Voice, Max/MSP
Martin Slawig – Objects, Max/MSP
Edward Filipp – Percussion
New York, USA
Richard Lainhart – Buchla
Sydney, Australia
Yavuz Uydu – Turkish Oud and Bendir
Roger Mills – Processed Trumpets
Munich, Germany – Helen Varley Jamieson
London, United Kingdom – Graziano Milano.
Sydney, Australia – Neil Jenkins.
This performance will performed live to an audience at the Kunstmuehle in Braunschweig, Germany, and broadcast online at
live video stream at
Roger Mills is an international composer, sound artist and writer whose practice and research focuses on networked improvisation, sound installation and experimental radio.
Credits include a Golden Eye award for contrapuntal radio performance Idea of South (Sydney), score for BAFTA award winning dance performance At Swim Two Boys by Earthfall, UK and album production and performances with Turkish singer Mircan Kaya.
Ahmet Yavuz Uydu is a multi instrumentalist from Adana, Turkey with background in Turkish classical singing. Based in Sydney, he composes for both film and television and
performed with Haluk Levent, Kirac, Sibel Can & Rafet El Roman on their Australian tour. He plays Oud, Bendir, Cumbus and Electric Bass.
Richard Lainhart is an award-winning composer, filmmaker, and author – a digital artisan who works with sonic and visual data. Since childhood, he’s been interested in
natural processes such as waves, flames and clouds, in harmonics and harmony, and in creative interactions with machines, using them as compositional methods to present
sounds and images that are as beautiful as he can make them. He has performed in public approximately 2500 times, and has been making music for 40 years.
Helen Varley Jamieson is a writer, theatre-maker and digital artist from New Zealand. She has a Master of Arts (research) investigating her practice of cyberformance – live
performance on the internet. She has created solo and collaborative performances (online and off-line), and since 2003 managed the web-based cyberformance platform UpStage.
Elke Utermoehlen is a performance artist, director and sound artist. Co-founder and actress of the german/peruvian Ensemble La Otra Orilla, at that time intensely involved in expanded intercultural exchange. She works with live electronics and computers,
developes research based or/and site specific installations. She plays improvised music: experimental use of voice in combination with realtime processing software and found
objects. Since 2001 director of “TiG – Theater im Glashaus”, an ensemble of performers with intellectual disability.
Eddie Filipp is a drummer and percussionist, born in Poland and based in Germany since 1980. He is a professional musician since 23 years, played on more than 50 albums and touring all over Europe with Andy Scotts Sweet, Inga Rumpf, Mike Harrison, Alex Conti, Sweety Glitter, Orange Blue, Such a Surge, Tony Lakatos, Nils Tuxen, Dave Goodman and many more.
Martin Slawig is a musician and audio visual artist. He works with custom built instruments, objects, field recordings and custom software for realtime processing. Development of sound and video installations, compositions and stage design for
theatres, co-director of Theater im Glashaus, a group of performers with intellectual disability. International performances and exhibitions.


Ethernet Orchestra


We are continuing our series of online collaborations, this time initiated by Sydney based musician and composer Roger Mills.
The Ethernet Orchestra is the research project of Roger Mills at the Faculty of Arts and Sciences, University of Technology Sydney, exploring ‘methodologies and ethnographies of cross cultural improvisation, user experience and computer mediated collaboration as well as the musical and sonic boundaries of divergent cultures in collision’.
For this new collaboration we all use the eJamming software, which allows jamming together with only 150 ms of delay. This is a great improvement compared with our earlier collaborations.
There will be two concerts in June, bringing together several musicians on two /three different continents.
Thursday, June 17, 5.30 pm Sydney / 9.30 am Braunschweig
Concert Program NIME 2010 (New Interfaces for Musical Expression), Sydney
Live in Sydney: Roger Mills – Processed Trumpet
Bukhchuluun Ganburged – Mongolian Horse Fiddle and Throat Singing (AU)
Live in Braunschweig: Martin Slawig – Objects, Electronics Max/MSP

Sunday, June 20, 11 pm  Sydney / 9 am Londrina / 1 pm Braunschweig
Live in Sydney: Yavuz Uydu – Oud & Bendir, Roger Mills – Processed Trumpet
Bukhchuluun Ganburged – Mongolian Horse Fiddle and Throat Singing (AU)
Live in Londrina, Brasil: Chris Vine – Guitar
Live in Braunschweig: Martin Slawig – Objects, Laptop (Max/MSP)

Live broadcast on radio fbi, Sydney and internet live stream at[/vc_column_text][/vc_column][/vc_row]

Restmetall photos

[vc_row][vc_column][vc_column_text]Here are some photos of our Restmetall performance at festival ‘Wunder der Prärie’ in Mannheim last fall. Thanks to festival photographer Peter Empl! (© P.Empl)


telematic performance

This was our setup for the Noiseborder/ blackhole-factory performance on Jan 14 2010.

The ‘audience-part’ of the performance was located at Lambton Tower, University in Windsor, Ca, while we were at our studio in the main trainstation in Braunschweig. Our local time for the performace was 1.30 am on Jan 15.
It was the first performance, were Elke used a new granular synthesis patch based on max/MSP and ftm for processing her voice.
We used Nicecast broadcasting software to send our sound and Skype for exchanging the camera signals.