Sound: Some Notes on Exhibition

Loudspeakers  Electromagnetic transducer – converts electrical signal to physical motion (sound)  Like a backward microphone!  TWO TYPES:  Dynamic (most common)  Induction drives a coil, producing motion  sound  VIDEO by some guy named Johan Segeborn (sorry…) (4:15) VIDEO  Electrostatic  Sound is generated by the force exerted on a membrane suspended in an electrostatic field  VIDEO by MartinLogan (9:33) VIDEO

Exhibition space sound systems  5.1 Surround  7.1 Surround  Immersive Sound—Adds the vertical dimension to sound design and exhibition...basically, it adds speakers above (and potentially below) the audience!  VIDEO—Panel discussion hosted by Mix comparing the three main technologies (53:46) VIDEO  (1) Channel-based  Auro 11.1 (by Barco, part of their Auro 3D series)  e.g., The Amazing Spiderman 2, How to Train Your Dragon 2  (2) Object-based... up to 128 simultaneous objects and 64 speaker channels, while retaining channel-based “bed channels”  Dolby Atmos  e.g., Gravity, Frozen, The Age of Adaline  DTS MDA (Multi-dimensional audio)

5.1 surround  5.1 systems use six channels/six speakers: a front left, a front right, a center channel, two surround channels and a subwoofer.

7.1 surround  7.1 surround adds two additional speakers to the basic six-channel (5.1) audio configuration. It splits the surround and rear channel information into four distinct channels, in which sound effects are directed to left and right surround channels, plus two rear surround channels

Immersive Sound: Auro 11.1  Channel-based  By Barco, part of their Auro 3D series  e.g., The Amazing Spiderman 2, How to Train Your Dragon 2  Based on the existing 5.1 surround sound configuration, the technology adds a height and top layer. With this audio format, sound comes from all around and above the listener.  VIDEO 1—AURO 3D explained (6:15) VIDEO 1  VIDEO 2—AUDO 3D explained more briefly (1:06) VIDEO 2

Immersive Sound: Dolby Atmos  Object-based  e.g., Gravity, Frozen, The Age of Adaline  VIDEO--Intro to Dolby Atmos 3D sound (5:05) VIDEO  VIDEO—Dolby Atmos for the home (2:28) VIDEO

end