camera angles and zoom levels where cameras may not be able to capture the entire room, the expressions and gestures of the presenters, or the details of the slides or the whiteboard. “It could also be poor audio quality and a lack of interactivity and engagement. The voice quality may be uneven depending on the location of the presenter in relation to the microphones, and flexible seating layouts require different equipment locations to cover the whole audience. “Similarly, the display device may not allow the presenters to see the reactions of remote participants or to interact with them in real-time.” Q How Have Previous Systems Tried to Cope with the Challenge of Large Rooms? Davidi: “To address some of the challenges of large room kits, video conferencing systems have introduced features and enhancements, such as Pan-tilt-zoom (PTZ) cameras which automatically change the angle, the direction and the zoom level of the video feed, capturing different perspectives of the room and the presenters. Multiple camera streams can also be used to cover completely different parts of the room simultaneously, such as the presenter and the audience. “Multiple microphones and speakers can also be placed in different locations in the room, often found mounted in the ceiling, to improve the audio quality by picking up the voices of the presenters and the participants more clearly. “Interactive whiteboards and touchscreens
have meant that presenters can use a dual screen set-up, allowing the presenters and the remote participants to better interact with each other to create a more engaging and collaborative experience.” Q What Innovations Are Improving the Experience for Participants? Davidi: “To overcome some of the challenges of large room kits, some video conferencing systems are adopting more innovative solutions. Top of this list is Multiple Camera Support which involves one camera tracking the presenter while another camera with a wide-angle lens covers the audience so that remote participants can enjoy a more inclusive experience. “Artificial intelligence and machine learning can also be used to analyse video and audio data and optimise the quality and delivery of the video conferencing session. They can automatically assess the room and select the correct video stream from multiple cameras to spotlight active participants, enhance voice clarity by reducing background noise and even transcribe and translate speech in real-time. “Cloud computing and edge computing technologies also have the computing power and storage capacity to process and stream large amounts of video and audio data more efficiently and securely, which is particularly important given the developments mentioned in terms of AI. This significantly increases the reliability of the video conferencing system and reduces latency and bandwidth consumption.”
Multiple microphones and speakers can also be placed in different locations in the room, often found mounted in the ceiling, to improve
the audio quality...
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