Held in Wiehl, Germany, this was the third such event hosted by Yamaha over the past few years. Company staff who led the sessions were Ron Bakker, Ruben van der Goor, Arthur Koll, Andy Cooper, Max Ota and Pawel Zachanowic. Kai Koennecke and Jan Prins provided technical and logistical support, while the technical preparation was aided by Atsushi Kitagawa.
The designers who took part came from a number of European countries, including Austria, Germany, the Netherlands, Poland and Switzerland.
The seminar used specially-constructed application setups which allowed for fully interactive learning. Featuring a range of Yamaha digital mixing consoles, amplifiers, SB168-ES stage boxes and third party interface cards, they allowed hands-on training with a range of different networks including ES100 (in a UNioN configuration), Optocore, CobraNet, Rocknet, Dante and SoundGrid.
The event was divided into two sessions, with the headings Networks and Quality. The Networks session included an update on all networking developments since 2008; the conventions of Yamaha's UNioN; multitrack recording and playback of audio over different networks; distributed DSP; audio, video and lighting control over IP and multiple access ES100 systems.
The Quality session primarily featured the study of head amps, jitter and their effect on audio quality. The aim of the head amp presentation was to demystify a range of issues, explaining how remote controlled head amps are built and their associated quality issues, includÂing circuit design, grounding, consistency, RF interference sensitivity, remote gain circuits and build quality. This was followed by a blind listening test of stage boxes from four different manufacturers, including Yamaha's SB168-ES.
Much lively discussion took place over meals and a great deal of fun was had by both the delegates and the Yamaha staff at a bowling evening after the first day.
"The hotel offered a perfect 'neutral' atmosphere to emphasise the focus on technology - a fact which was appreciated by all who attended," says Ron Bakker.
"The transition of conventional digital audio to networked audio systems introduces a form of democracy in system design, which offers unprecedented freedom in creative options for DSP, distribution, user interfacing and peripheral functionality. The aim of the seminar was to inform the 30 attendees on both quality and design issues - and, above all, to learn from each other how we can make the most out of the exciting new possibilities."
(Jim Evans)
