Abstract: A computer implemented method of operating an administrator device to facilitate the participation of participants in an event comprises receiving passages of free text from response devices operated by participants; automatically aggregating and displaying the received passages of free text in a free text input region of a display of the administrator device; receiving a user selection of a said passage of free text and copying that selected passage of free text to a response prompt region of said display; generating an output to display the free text in the response prompt region to said participants; receiving a user input via a first clickable icon displayed on said display and, in response, accepting responses from response devices; receiving a user input via said first or a further clickable icon displayed on said display and in response stopping acceptance of further responses from response devices; and automatically aggregating and displaying the accepted responses in a result region of said display a

Abstract: An audio communication system is provided for generating an audio output for users in a region, the system comprising a plurality of portable communications devices for use by a respective plurality of users, each communications device comprising a microphone for inputting an audio signal by a user, a loudspeaker for generating an audio output for said user, said loudspeaker being adapted to output said audio output in at least a first frequency band, and a wireless interface for wireless communication to transmit said audio signals from said microphone and receive audio signals derived from an audio source for generating said audio output by said loudspeaker; and at least one low frequency loudspeaker device having an interface for receiving audio signals derived from a microphone of another communications device, and a low frequency loudspeaker adapted to output a low frequency audio output in said region only in a second frequency band lower than said first frequency band.