Showcase & conference, Lausanne, September 5th

Private Event

AER Sarl
Acousticiens Experts,
10th year anniversary

Thursday September 5th, 18h00 / 20h00


Meetup Superdiff showcase, Lausanne October 1st

Liip SA
Rue Etraz 4 · Lausanne
Book here:

SuperDiff Advantages

Much better artist localisation
Fewer harmonic distortion
Improved levels, clarity and intelligibility
Enhanced feeling of space
Lower level needs and better “loudness” feeling
Better sense of surrounding soundscape

Noisy Apple AirPods

If you thought your shiny white earbuds were offering you a private & relaxing commuting experience, think again… they don’t. People in the same carriage can witness your inclination for a morning Deadmau5.

Not only Apple, but everyone knows what and when you are listening, … Because these things let out all the high frequency content, while they let in much of the ambiant sounds too, this forces you to use extra high sound pressure to cover the background noise. Not good, for you, at all.

If you fancy respecting yourself, or the commute times of your fellow passengers, or both, you might want to play stuff with fewer hi frequency & transients content, or even better, buy a real quality headset with proper noise cancellation. (B&O, Sony, Bose, 1More)

#airpods #earbuds #noisecancellation #soundquality #deadmau5 #edm #londontube #a-jays #jbl #bose #sennheiser

#3 Superdiff – Augmented Audio – Quick Start

  • Starting a Superdiff project is easy. It is all about distributing energy. Just use one loudspeaker addressing the entire crowd for every instruments/musicians on stage. Already it works nicely as is. Extrapolating, enhancing that first idea makes things a little more complex, but very much amazing and incredibly fun. Some basic rules of thumb and guidelines will help make a Superdiff system easier to use, even when hosting traditional stereo acts for the first time.

For example, some rules tend to emerge for giving more importance to center loudspeakers clusters above the stage, at least for elements with strong rhythmics components. So, forgetting a little about side and rear coverage tends to remove concerns for adequate placement of rhythmical contents in appropriately located sources.

Adding a dedicated object oriented matrix mixer/router between the mixing desk and the Superdiff system, allows for continuous movements of sound sources across the entire audio stage. And this is nice. It also makes the whole process of placing or automating sources in a soundscape an ergonomic pleasure, all with adequate front/rear, dry/wet, bright/dark balance.

On the very same idea of providing even coverage and smooth transitions between loudspeaking groups, every loudspeaker in the system needs to offer basic capabilities such as line source properties for smooth vertical coverage and wide, up to 180°, horizontal coverage. Obviously, the different groups of loudspeakers will have to provide homogeneous and coherent phase & frequency responses. Ideally it will be identical models. Of course the entire system is to be designed so it reaches the entire crowd. As much as possible.

#2 Superdiff – Art Projects

Why Superdiff Augmented Audio?

Superdiff is an AV 360 ° immersive streaming model that brings together in one functional whole the best multichannel methods and tools. Superdiff facilitates and unifies the preliminary creation, the live AV diffusion of the show and the subsequent distribution of the media on the net.

Superdiff Art Projects
Paa consulting – Superdiff Conférences
Stokata – Experimental Superdiff AudioVisuals
Pierre Aescher – Ambiant Superdiff guitar
Gil Everest and Eiger Nord Wand – Superdiff DJ Set
LDSPKR – Superdiff Music Label

Superdiff Art Projects exist, for the love of music first and to accompany, support, broadcast and make available this incredible experience, for real, now. While also offering artists, engineers and showgoers the opportunity to experience an immersive augmented sound by themselves.

Curious or interested? Call for booking or for an informal chat…

Immersive audio done right

Do you long for better, clearer, softer, wider audio with more oomph and better localisation? Do you wish this could be achieved today. We do. It can.

Object based mixing matrix, 18 audio channels & full range line source loudspeakers, 7 in the front, this sounds just incredibly right!

Would you be interested if we told you it can be made today?

Live, in the studio or in your home?

Your own personal immersive Island

Swiwel and relax, while listening to amazing immersive Mussorgsky 24 channel audio, and more

#1 Superdiff – Augmented Audio

Do you long for better, clearer, softer, wider audio with more oomph and better localisation? Do you wish this could be achieved today. We do. It can.

The sound format of the future is available now, for art, for live, for shows AND for recordings.


Since a little after the show business was invented, around the time of the first open air concerts by the Beatles or the Stones, stereo was created… for records and for broadcasting it was a good idea, probably. Before that, large open air shows did not really exist, nor mono, nor stereo. Small live shows had a beautifully detailed, real, sound image, be it acoustical or amplified, it was multichannel by essence. From classical music, to big bands, to rock: when listening to Paul you could see where Paul was standing, same for George or Ringo, or John. Then live audiences extended beyond the circa 500 pax technical limit and everything went south. The nice “backline” of VOX amplifiers became seriously underpowered and public address system had to be invented. Since then we listen to twin mono systems with bits of stereo in the center. But now, we have means of having both nice coverage AND power AND intelligibility AND localisation AND do all that for whatever number of PAX in the audience, nicely. With existing hardware, existing software, existing content and, a touch of knowhow. We at PAA Consulting call this Superdiff.


For shows, independent sources, voices, instruments mixed to several loudspeakers arrays, as according to the event needs. Then, the content can be recorded, encoded and distributed in an independent format, while still offering a faithful reproduction of the original acoustical space… that can then be played out on Facebook, Oculus or Youtube. Or on any multichannel loudspeaker system.


Sources: any sounds, voices, instruments in their independent multi-channel original form.

Mixing: a hardware or software mixer with almost as many output as input channels.

Broadcasting: live, in the studio or at home, as many loudspeakers as your room or your audience requires. This may range from a simple stereo headset for a single person to a large line array kit for a stadium. For Superdiff, we set the absolute minimum at about 7 channels of full-band loudspeakers, as an example.

Ideally, every loudspeaker in use shall address the entire audience area. As opposed to what usually happens in traditional systems. So you want to give coverage design extra attention and possibly offer array systems with extra wide horizontal and tightly controlled vertical coverage. So, unless a system is built in a tiny room, this seem to orientate your choices towards the use of single speaker columns or line source arrays, depending of distance and coverage needed. Interestingly, since several systems, say 7 at least, for creating your augmented immersive system, thus offering better SPL, signal to noise and distortion ratio, loudspeaker arrays can usually be scaled down when compared with traditional dual mono setups.

Yes, setting up a beautiful Superdiff requires special knowledge. To design the signal processing chain, select the appropriate tools and formats, create the speaker system and stage the sound.

Visit us at PAA Consulting for more on Superdiff

Yamaha SDC Conference – Paris

Invited by Yamaha Pro Audio to speak about sound, human and sensations at the System Designers Conference at Euro Disney Paris. The Interview: