29[Audio output volume (PC to Camera)]Select a volume level on the camera to hear audiotransmitted from the PC.High/Middle/LowDefault: Middle[Audio output interval (PC to Camera)]Select an interval for audio transmission from the follow-ing.160 msec/320 msec/640 msec/1 280 msecDefault: 640 msecNotes:• When a shorter interval is selected, the delay timewill be shorter. When a longer interval is selected,audio interruption may be diminished even thoughthe delay time will be longer.Select the interval according to the network environ-ment.• Audio may temporarily be interrupted or noise maybe heard the camera, or when multiple users areaccessing concurrently. It may be possible to dimin-ish the interruption or noise by setting a longer inter-val for "Audio output interval (PC to Camera)".• Audio may sometimes not be heard depending onthe network environment.[Audio output port (PC to Camera)]Enter the transmission port number (the port number onthe camera used to receive audio data transmitted fromthe PC).Available port number: 1 024 - 50 000 (Only evennumbers are available.)Default: 34004Note:The transmission port number entered for "Audiooutput port (PC to Camera)" will be used only when"Unicast (MANUAL)" is selected for "Transmissiontype" ( page 21).When "Off" is selected for "MPEG-4 transmission"( page 21) or when "Unicast (AUTO)" or"Multicast" is selected for "Transmission type", it isnot necessary to enter the transmission port num-ber.[Permission level of audio trans./recep.]Select an access level for audio transmission/receptionfrom the following. Refer to page 39 for further informa-tion about the access level.Level 1 only/Level 2 or higher/All usersDefault: All users