Abstract: A technique involves electronically providing live video of a first participant of the online meeting to a set of other participants of the online meeting. The live video displays live physical movement of the first participant. The technique further involves receiving a live video replacement command from the first participant after electronically providing the live video of the first participant of the online meeting to the set of other participants of the online meeting. The technique further involves electronically providing recorded video of the first participant of the online meeting to the set of other participants of the online meeting in place of the live video in response to the live video replacement command. The recorded video displays recorded physical movement of the first participant. Such operation affords the first participant with a period of privacy during the online meeting without calling attention to the video's change in state.

Abstract: A technique utilizes a smartphone during a public address system session. The technique involves operating a public address system to provide audio from a local human presenter to a local human audience, the local human presenter and the local human audience residing at a common physical public address location. The technique further involves establishing, while operating the public address system to provide audio from the local human presenter to the local human audience, an electronic connection between the smartphone and the public address system. The technique further involves providing, after establishing the electronic connection between the smartphone and the public address system, audio from a user of the smartphone to the local human audience through the smartphone, the electronic connection, and the public address system.

Abstract: A technique utilizes a smartphone during a public address system session. The technique involves operating a public address system to provide audio from a local human presenter to a local human audience, the local human presenter and the local human audience residing at a common physical public address location. The technique further involves establishing, while operating the public address system to provide audio from the local human presenter to the local human audience, an electronic connection between the smartphone and the public address system. The technique further involves providing, after establishing the electronic connection between the smartphone and the public address system, audio from a user of the smartphone to the local human audience through the smartphone, the electronic connection, and the public address system.