7272[Zoom] buttons, [Focus] buttons, [Brightness] but-tons, Control pad/buttons and [Go] buttonRefer to pages 9 and 11 for descriptions of how tooperate these buttons/pad.Configure the settings relating to audio [Audio]Click the [Audio] tab on the "Image/Audio" page. (☞ Pages 26 and 27: How to display/operate the setup menu)The settings relating to audio can be configured on this page.Note:• Images and audio will not be synchronized. Therefore, images and audio may not always match.• Audio may be interrupted depending on the network environment.[Audio transmission/reception]Select the communication mode used for audio datatransmission/reception between the camera and the PCfrom the following.Off: Does not receive/transmit audio between the cam-era and the PC. Therefore, the settings and controlsrelating to audio will be invalidated.Mic input: The PC receives audio data from the cam-era. Audio can be heard with images on the PC.Images and audio will not be synchronized.Audio output: Audio data from the PC will be transmit-ted to the camera. Audio can be heard from thespeaker connected to the camera.Interactive(Half-duplex): Both reception and transmis-sion are available. However, audio data cannotsimultaneously be transmitted and received.Interactive(Full-duplex): Both reception and transmis-sion are simultaneously available.Default: Off[Close] buttonClick this button to close the "Privacy zone" setupmenu.Note:• Howling may be generated depending on usageconditions. If howling is generated, prevent soundgenerated by the PC from entering the PC micro-phone.• When "Multicast" is selected for "Transmissiontype" on the [JPEG/H.264] (or [JPEG/MPEG-4]) tabof the "Image/Audio" page, audio transmission willbecome unavailable while monitoring H.264 (orMPEG-4) images. To transmit audio from a PC tothe camera, click the [JPEG] button on the "Live"page.[Audio encoding format]Select the audio encoding format from G.726 andG.711.Default: G.726Note:• i-PRO Series does not support aspect ratio of"G.711". (As of October, 2010)• G. 711 is available only when "Mic input" is selectedfor "Audio transmission/reception".[Audio bit rate]Select "16kbps" or "32kbps" for the audio bit rate usedto transmit/receive audio data.Default: 32kbpsNote:• When selecting a smaller value for "Bandwidthcontrol(bit rate)" (☞ page 97) while putting a priorityon the JPEG/H.264(MPEG-4) image transmission,select "16kbps" for "Audio bit rate".