TECNOLOGY TO TRANSFORM EXISTING STRUCTURES INTO ACOUSTIC SPEAKERS
What is MAR.Sound
is an high innovative contents technology that is taking advantage on using piezoelectric actuators in order to broadcast music, notes, voice and sound.
Once the piezoelectric elements are correctly tuned, it allows to transform existing structures (walls, furniture, panels etc) into loudspeaker, with the advantage to create a broadcast density and an unique immersion field around the user.
The system’s interface suites any type of devices equipped with a Bluetooth connection or an analogical exit.
ACOUSTIC IMMERSION. With respect to a traditional single point emission system, it’s possible to reach an uniform sound density with the same installed power.
FLEXIBILITY. The system can be installed in many ways on available structures such as offices and houses.
DISCRETE. The piezoelectric actuators’ sizes are comparable to a common stamp (20X20X1mm). Therefore, they’re well hidden.
LOW POWER Around 1W/m2, it guarantees an high energetic efficiency.
DURABILITY. The system is sturdy and doesn’t need maintenance.
SMART TECHNOLOGY. The system can interface any device equipped with Bluetooth or analogical output.
How to install MAR.Sound
( patch in emission mode)
A typical MAR.Sound installation needs the following elements:
a charger, an amplifier that is specifically designed with integrated Bluetooth and able to drive up to 30 actuators, a bipolar cables shield, some piezoelectric endings (size 20X20X1mm each).
The reproduced sound is sent to the amplifier through a Bluetooth protocol or through an analogical channel (common audio jack). The amplifier receives the signal on input and sends it to the piezoelectric actuators for the final emission. Thanks to the synergic relationship between the piezoelectric actuators and the surfaces, the structure becomes an active emission object able to propagate the sound into the whole setting. Thanks to the extension of the emission area, the auditory field acquires an homogeneous density and a brake-through involving property.
As regards the number of used patches, it’s necessary to consider the following:
- The setting’s volume wherein the system is installed;
- The acoustic power that is required to achieve some specified performances (musical background, announcement speech, amplification the voice for conference…);
- The structure’s type whereon the patches are applied;
- The limit of 30 piezoelectric links for each amplifier.
The next table describes, as an example, some values advised in terms of patch/m²:
|TYPE OF USE||“SMALL” SETTING (HEIGHT CEILING <2,5m)||“BIG” SETTING (HEIGHT CEILING >2,5m)|
|Musical background (short acoustic power)||0,25 patch/m²||0,5 patch/m²|
|Music listening (average acoustic power)||0,5 patch/m²||1 patch/m²|
|Announcement speech (average acoustic power)||1 patch/m²||1,5 patch/m²|
|Conference room (high acoustic power)||2 patch/m²||3 patch/m²|
By using piezoelectric patches as actuators, MAR.sound allows structural passive surfaces (wood, cement, metal, marble, glass, etc) to transform themselves in active and control-ready sound emitters. The piezoelectric endings can be placed on almost every plane surface: grills, panels, windows, doors, tables, bases, fixtures and many others can be equipped with MAR.sound technology.
|Feeder switching 240V.24V||Smallest power: 60W, input 240A/C, output: 24D/C stabilized.|
|Amplifier dedicated||Integrated Bluetooth, earnings selected, able to drive up to 30 ending into emission, sizes 150X100X30mm. Note: if over 30 emission endings have to be installed, there must be more than one amplifier.|
|Piezoelectric ending||Power absorption in emission mode: 1W; sizes: 20X20X1mm.|
|Principal audio emission cable||Bipolar, insulation min. 700V, up to 2A to current, Shielding recommended (f.e. FROHH2R 450/750V)|
|Secondary audio emission cable||Bipolar, insulation min. 700V, up to 0,5A to current, Shielding recommended(f.e. FROHH2R 450/750V)|