These spaces require AV solutions that are not only technically effective, but also adapt to dynamic and unique contexts, where interaction with users must be fluid and accessible. As the demand for more advanced AV systems increases, so do the challenges in their implementation and the need for collaboration between architects and technology integration experts.

See here some challenges and opportunities associated with the use of audio and video systems in public spaces, as well as highlighting the importance of close collaboration between space designers and AV technicians to achieve effective solutions.

Challenges in the implementation of AV systems in public spaces

Acoustic conditions and environmental noise

One of the most complex challenges when incorporating audio systems in public spaces is the environmental acoustics. Places like airports or shopping malls have acoustics that are difficult to control, due to factors such as:

• Reverberation: Hard surfaces such as glass or metal can reflect sound, distorting the clarity of auditory signals.
• Background noise: The constant flow of people and other noises (machines, traffic) can interfere with the clear transmission of messages or background music.

To solve this problem, specialized acoustic designs and quality sound equipment, such as directional loudspeakers or noise cancellation systems, are essential. In addition, real-time sound adjustment is crucial to ensure that the audio is perceived clearly throughout the space.

Andrés Millán, general manager of Boutique Pro Audio, Colombia, agrees: "The complete acoustic conditions are one of the important points when working in these spaces. The effective solution always demands a comprehensive strategic acoustic treatment under the right selection of specialized materials, but that meet the functional and aesthetic needs of space, in addition to the use of speaker systems with controlled directivity to focus the audio in specific areas, minimizing interference and avoiding sonically excite a space with high levels of reverberation that compromise the understanding of the messages you want to communicate.

2. Visibility and video optimization

Video visibility is also a major challenge. Devices such as large format screens or projectors must be installed strategically so that all users, regardless of their location, can clearly see the content.

"Reflections, light variability and unstrategic locations can seriously compromise the user experience by losing the communication of the message, which in many cases can even be survival," said Andres Millan.

The main obstacles include:

• Ambientlighting: Natural or artificial light can affect the visibility of the screens.
• Viewingangles: In places with heavy traffic, such as train stations, it is not always possible to ensure that everyone has a good view.
• Outdoor Screens: Weather conditions and sunlight intensity are key factors to consider when choosing appropriate screens.

To mitigate these problems, it is advisable to use high brightness LED displays, as well as devices with anti-glare technology. In addition, the location and design of the environment should be planned to optimize visibility and user experience. "Undoubtedly, the correct selection of displays with high brightness technology, in addition to a properly planned visual distribution design, are key to a successful implementation in this type of spaces," said Andres.

3. System scalability and flexibility

AV systems in public spaces must be scalable and flexible, as these places often undergo changes over time, either in the distribution of space or in the incorporation of new technologies. Some challenges include compatibility with existing infrastructures and the integration of new technologies into established systems.

One way to ensure scalability is to opt for modular systems that are easy to upgrade. The use of standardized protocols, such as Dante for audio or HDMI for video, facilitates future expansions without major complications.

From the side of professionals working in this medium, an issue that still worries in the world of wireless systems is the number of channels both microphone and in-ears that are handled simultaneously and how to avoid interference, such as digital TV channels, journalism, among others.

"For this reason, it has become, in the world of public shows, mandatory that one person is in charge only of the RF (radio frequency)," said Andres Reina, CTS - Project Manager of the Colombian company Yamaki. "It is also important to keep in mind that some artists, because of the way they present their show, require specific antenna locations to cover greater distances without losses or cuts in the audio".

4. Accessibility and use

Accessibility is another fundamental aspect in the design of AV systems. These must be inclusive for all people, including those with hearing or visual impairments. Some solutions include:

• Subtitles or simultaneous translation: These are necessary in places such as museums or airports, where translations of advertisements or audiovisual content are required.
• Assistive technology for the hearing impaired: Systems such as inductive loops or mobile apps that transmit audio directly to hearing aids.

Collaboration between architects and systems integrators: Key to success

Cooperation between architects and AV system integrators is essential to overcome obstacles and create effective solutions. Both must work together from project inception to completion.

Joint design from the beginning

The process should start with shared planning, where architects design the physical space while integrators ensure that AV systems are technically feasible. A collaborative design allows:

• Avoid visual or acoustic interference when placing screens and loudspeakers.
• Ensure that the electrical and network infrastructure is adequate to support AV systems.
• Consider factors such as acoustics and lighting to provide an optimal visual and sound experience.

2. Selection of suitable equipment

Architects must consider aesthetics and design integration when choosing equipment, while AV technicians are responsible for ensuring that the devices are functional and appropriate for the needs of the space. Together, they can choose:

• Discreet, high-quality displays that integrate harmoniously with the interior design.
• Speakers and sound systems that, in addition to delivering good performance, are strategically placed to distribute sound evenly.

3. Testing and final adjustments

Once the systems are installed, it is crucial to perform on-site tests to adjust settings and calibrations. This includes verifying acoustic response, light level and sound distribution. Integrators must collaborate with architects to ensure that the implemented solutions follow the original vision, while maximizing the performance of the systems.

4. Continuous maintenance and updates

AV systems in public spaces require regular maintenance and upgrades to keep up with technological advances. Ongoing collaboration between architects and integrators allows system expansions or modifications to be planned without affecting the functionality of the space.

Opportunities offered by AV systems in public spaces

Despite the challenges, AV systems integration offers great opportunities to improve the user experience and develop innovative solutions:

• Enhance the user experience: Thanks to AV technology, users can access real-time information, enjoy visual and audio content or participate in interactive experiences, such as those offered in some museums.
• Interactivity and personalization: AV enables the creation of personalized experiences, such as interactive touch screens, facial recognition systems or audio adjusted to the user's location.
• Operational efficiency: Intelligent AV systems can also optimize ad management, dynamic advertising or security monitoring, which improves the operational efficiency of these spaces.

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