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2. Boundary microphone - Wikipedia

   en.wikipedia.org/wiki/Boundary_microphone

   When used to record a soloist or small musical ensemble along with the room acoustics (e.g. reverberation), a boundary microphone prevents phase interference between direct and reflected sound, resulting in a natural sound with a flatter frequency response than can be obtained with a stand-mounted microphone at the same distance (explanation ...

3. Audiovisual - Wikipedia

   en.wikipedia.org/wiki/Audiovisual

   The application of audiovisual systems can be found in collaborative conferencing (which includes video-conferencing, audio-conferencing, web-conferencing, and data-conferencing), presentation rooms, auditoriums and lecture halls, command and control centers, digital signage, and more. Concerts and corporate events are among the most obvious ...

4. Sound reinforcement system - Wikipedia

   en.wikipedia.org/wiki/Sound_reinforcement_system

   A challenge with designing sound systems for clubs is that the sound system may need to be used for both prerecorded music played by DJs and live music. A club system designed for DJs needs a DJ mixer and space for record players. In contrast, a live music club needs a mixing board designed for live sound, an onstage monitor system, and a ...

5. Covert listening device - Wikipedia

   en.wikipedia.org/wiki/Covert_listening_device

   In the late 1970s, a bug was discovered in a meeting room at the OPEC headquarters in Vienna. The bug intercepted the audio from the PA system via a pickup coil and transmitted it on a frequency near 600 MHz using subcarrier audio masking. It was not discovered who was responsible for planting the bug. [26]

6. List of video telecommunication services and product brands

   en.wikipedia.org/wiki/List_of_video...

   A telepresence system is a high-end videoconferencing system and service usually employed by enterprise-level corporate offices. Telepresence conference rooms use state-of-the art room designs, video cameras, displays, sound-systems and processors, coupled with high-to-very-high capacity bandwidth transmissions. [citation needed]

7. Scopia - Wikipedia

   en.wikipedia.org/wiki/Scopia

   The Scopia XT5000 is a unified communication video conferencing system with many video conferencing endpoint options. The system is capable of dual 1080p/60fps live video content, HD Audio, H.264, Scalable Video Coding (SVC), along with iPad multi-touch control. [6]