1.How to create a conference?
2.How to schedule a conference and inform attendees about the conference?
3.How to set security to a conference session?
4.How to join a conference session?
5.What are the minimum requirements of computer?
6.How much bandwidth is needed?
7.Unable to join conference after clicking on URL
8.The connection to the conference server fails
9.I hear my own voice coming back when I talk
10.Other participants cannot hear me
11.I cannot see my own video
12.I cannot hear other participants
13.Can I use DV devices?
14.I cannot see the video of other participants
15.I can see my own video, but others cannot see me.
16.How do I get 'Speaking' rights?
17.There is a big delay in audio transmission
18.There are audio jitters
19.Ways of improving audio quality
20.What is the maximum number of participants?
21.Difference between host, co-host, participant and presenter
22.What can a host do when the conference is chaos?
23.What controls does a host have?
24.What happens if the host gets disconnected?
25.How many video windows can be opened?
26.Can the videos be enlarged?
27.I get an error when using a video file as 'Secondary Input'
28.Where are received files stored?
29.Which type of files can be shared?
30.How to share document types that are not supported?
31.Why the ppt files that I share do not look as nice as others?
32.How to delete the documents that I shared?
33.When I share my screen, others don't see the full color
34.How to let others control my screen?
35.How to use 'Screen Snapshot'?
36.During web browsing, others do not see the same web page as me.
37.The slide that I am in is different from others.
38.How to change the color of the annotation tools?
39.In recording, what is recorded?
40.Where is the recorded file stored?
41.How to open the recorded file?
42.How to preview the recorded conference session?
43.How to distribute the recorded conference?


1.How to create a conference?
 Go to http://AcuManagerIP/login Enter 'Company', 'user id' and 'password'. Select 'New Conference'. Enter the 'Title' of the conference session, Email (to which the URL of the conference session will be sent to), 'Password' (If you wish to protect access to the conference session) and 'Description' (If any). Click 'Create'. A few seconds later, 'New conference successful!' will be displayed. Click 'Start Conference' to start the conference session.
2.How to schedule a conference and inform attendees about the conference?
 First, Create a conference (See 'How to create a conference'). Instead of starting the conference, select 'Invite'. Choose the date and time of the conference and enter the email addresses of the attendees. Click 'Send', an email will be sent to the attendees informing them of the upcoming conference.
You can also forward the email (containing the URL to the conference session) that was sent to you by the system to the intended attendees. Or immediately send the URL via any messaging software.
The conference host should start the conference session at the scheduled time by entering the system, select 'Conference List' and click on the required conference session.
3.How to set security to a conference session?
 When the host creates a conference, he can allow access to all users or set a password to the session
4.How to join a conference session?
 After the conference session is started by the host, participants can click on the URL that is sent to them via email or other means. Participants will be prompted to download and install client software if they are joining a conference for the first time. When prompted, enter name and password (if required) to enter the conference session.
5.What are the minimum requirements of computer?
 Hardware:
Pentium III 800 MHz, 128M RAM, sound card, microphone, web camera, broadband connection
Software:
Windows 2000 Professional SP4 or Windows XP, Office 2002 or 2003, Windows Media Player 9 and above, Internet Explorer 5.5 and above, DirectX 8 and above
6.How much bandwidth is needed?
 For a conference session that is 'Full rate', the amount of bandwidth required is directly related to the number of participants is the conference, especially the number of participants whose video/audio channel are opened. When a speaker chooses 64 kbps as his video quality, an average of 100 kbps needs to be uploaded. Similarly, receiving one video/audio requires a download of 100 kbps. In a conference session with 4 participants with all video/audio channels opened (everybody speaking), the required bandwidth is 100 kbps upload and 300 kbps download. In the case where participants are in the same LAN, the participants will share the same downloaded data from one of the participants, thus saving WAN bandwidth. If the conference session is created as 'Consecutive refresh', the bandwidth is capped. For speakers/participants with a video rate of 64 kbps, the upload and download bandwidth is about 100 kbps, no matter how many speakers/participants there are.
7.Unable to join conference after clicking on URL
 If host has not started the session, a message 'Sorry, the conference session that you are attending is not in progress yet. Please wait for the session to start.' will be displayed. No need to close the browser as when the conference session starts, you will be brought to the login page.
8.The connection to the conference server fails
 The conference software will try various methods to connect to the conference server. When all methods fail, a message 'Connection failed' will be displayed. Check if you need a proxy server to connect to the internet. If required, enter the required information in the pop up dialogue box. The software will make use of the proxy setting in Internet Explorer, if configured. In this case, only the username and password is required. If you still cannot connect, please check if UDP 7350 – 7353, or TCP 443 or TCP 80 ports are opened. We recommend that UDP connection be used for better video/audio experience.
9.I hear my own voice coming back when I talk
 Under Control Panel – Sound and Audio devices – Audio, in 'Sound Playback' ensure that the 'microphone' is mute. In 'Sound Recording' of other speakers, ensure that 'microphone' is selected instead of 'wave out'
10.Other participants cannot hear me
 Before entering the conference session, in the 'AV Setting' dialogue box, select the desired audio device. Click on the 'Test' button and speak into the microphone. If there is a green meter bar, the audio device is working properly. The level of the microphone can also be adjusted here. If there is no meter display, please check if the microphone is properly connected and the audio device is correctly configured. In Windows 2000, check that no other applications are using the audio device.
11.I cannot see my own video
 Before entering the conference session, in the 'AV Setting' dialogue box, select the desired video device. Click on the 'Test' button. You should see yourself in the video window. If not, check that no other applications are using the video device (e.g. MSN). Or check that the driver is correctly installed. Also check if the video device supports QVGA (320x240) – RGB 24. The conference software makes use of this format to output video.
12.I cannot hear other participants
 If you can see the audio meter below the video window of the said participant, please check that the audio playback setting on your computer is correct, for example whether it is 'Mute'. The software uses the audio playback device that is defined in your computer. If you cannot see the audio meter when the other participant is speaking, please ask him/her to check whether his/her audio input device is properly configured.
13.Can I use DV devices?
 Yes. The conference software supports most DV devices as video/audio sources. Check that the DV device (connected via firewire or USB) outputs uncompressed video (Some DV devices outputs compressed Mpeg2 –DVD video). Also ensure that it supports QVGA (320x240) RGB 24 format. If the DV device cannot satisfy the above, consider using a video capture card or USB to analog converter to connect the DV device.
14.I cannot see the video of other participants
 If you also cannot see your own video, please check that you have installed MS DirectX8 or higher. (You can check the version by: Start – Run, type 'dxdiag.exe' and click 'OK') Or try to lower the 'Hardware Acceleration' of your display card. (Control Panel – Display – Settings – Advanced – Troubleshoot) If you cannot see other participant's video, check that his status is 'Speaking'. Also check the video status of the participant in the 'Participant List'. If it is 'Off', he might have chosen not to send his video or he does not have a video device. Or you may not have enough download bandwidth. The software gives priority to audio data.
15.I can see my own video, but others cannot see me.
 Check that you have 'Speaking' rights in the conference. Only participants who have been granted 'Speaking' rights can be seen or heard by others. Also check that you have not disabled sending of your video. When you are doing 'Document Share', your video will be temporarily disabled. This is to conserve upload bandwidth. You can manually enable your video sending. Or you can wait until the upload of your document is complete and the software will automatically enable your video.
16.How do I get 'Speaking' rights?
 If you wish to speak in the conference session, you have to click the 'raise hand' icon. Whether you will be able to speak after 'raise hand' will depend on whether you are a co-host or a participant. The host needs to grant permission to a participant to speak. A co-host automatically becomes a speaker after he 'raise hand' The host can also invite anyone to speak. That person just has to accept the invitation and he immediately becomes a speaker. After you finish speaking and wants stop sending your video/audio, click on 'raise hand' again.
17.There is a big delay in audio transmission
 Normally, audio delay is due to network conditions, participants are connected to the system via different networks with different conditions. UDP transmission for video/audio is more efficient than TCP. The response time from some networks to the server may be long. The conference server receives video/audio data from all speakers and sends them to all other participants. The bandwidth requirement of the server is thus high. For example assume there are 10 people in a conference with 4 people speaking. (128 kbps video quality) The speakers require a download bandwidth of 160 x 3 = 480 kbps. Non speakers require 160 x 4 = 640 kbps. For the server, the download bandwidth required is 160 x 4 = 640 kbps and the upload bandwidth required is 160 x 3 x 4 plus 160 x 4 x (10 – 4) = 5.76 Mbps
18.There are audio jitters
 Audio jitters are cause by network instability of either the speaker or receiver. Audio transmission requires a bandwidth of 40 kbps. If the network is not able to sustain a constant bandwidth of 40 kbps, then jitters will occur.
19.Ways of improving audio quality
 The system uses audio buffer to minimize jitters. Big audio buffer greatly reduces jitters but delay becomes longer. The buffer size was determined based on a conference with four speakers.

When the number of speakers increase, and bandwidth is not enough, audio jitters may be encountered. The host can control the number of people speaking at the same time or disable video to correct the situation. Participants can also help by disabling 'raise hand' when they have finished speaking. If bandwidth is not sufficient, you can also disable receiving the video of the speakers.
20.What is the maximum number of participants?
 There is no limit to the number of people that can join a conference session. However due to limitation of hardware and bandwidth, it is limited to 200 participants per server.
21.Difference between host, co-host, participant and presenter
 Host: The one who creates and start the conference session. He has complete control over the conference. He can also transfer the host control to anybody.
Co-host and participant: Both are people who participate in the conference. The only difference is that the co-host will have speaking rights immediately when he 'raise hand'. Participants need the host to grant them permission to speak when they 'raise hand'.
Presenter: When a presenter changes slides, go full screen, screen share, capture snap shots, browse the web, use white board etc, everybody will follow suit. Everybody will see the same data/document on their screen as the presenter.
22.What can a host do when the conference is chaos?
 When there too many speakers and all of them are speaking and not giving way to anybody, the host can click on the 'Attention' icon. When he does that, all speaking rights of the speakers are revoked temporarily. Only the host is able to speak, after he has restored order, he can click on the 'Attention' icon again, and all video/audio channels of speakers will be restored. The host can also selectively revoke the speaking rights of anyone or 'kick out' undesirable participants by right clicking on the participant's name and select the appropriate action.
23.What controls does a host have?
 As a host, you can
- enable video/audio of the conference session
- Be the sole speaker in the conference, revoking the speaking rights of all others.
- Record the conference session
- By right clicking on the participant's name, he can promote participants to co-host or demote co-host to participant, set/revoke presenter rights, give permission/revoke speaking rights, kick participants out of the conference session and transfer the host to others.
24.What happens if the host gets disconnected?
 When the host gets disconnected, the host status will be transferred according to this order: the first speaking co-host, the first speaking participant, the first co-host and the first person to join the conference. The host will automatically try to reconnect. He will join the session again as a participant. He can take back the host control by right clicking on his name in the participant list and select 'Set to be host' and enter his password.
25.How many video windows can be opened?
 There is no limit to the number of video windows (speakers) as long as the host allows it. Whenever someone becomes a speaker, his video window will pop up on the screen of everybody. When the video windows occupy the whole screen, new video windows will overlap the existing ones. You can drag the video windows to any position as required.
26.Can the videos be enlarged?
 Double click on any video window to view in full screen. Double click again or press 'ESC' to return to the console view.
27.I get an error when using a video file as 'Secondary Input'
 This problem is likely caused by corrupted video codec or missing video codec. Install codec pack from http://www.free-codecs.com/download/Storm_Codec.htm and try to run the media files again.
28.Where are received files stored?
 When somebody sends you a file, you can choose to 'accept' (stored in my documents\aculearn directory\download), 'save as' (choose your won location) or 'reject' the file.
29.Which type of files can be shared?
 Speakers can share the following types of documents: ppt, doc, xls, jpg. gif, bmp and swf
30.How to share document types that are not supported
 You can use 'Screen share' or capture a snapshot of your screen.
31.Why the ppt files that I share do not look as nice as others
 If you are using Office 2000, the slides are converted to jpg images. Thus when in full screen mode, the image is expanded giving rise to inferior quality. If you are using Office XP or above, the slides are converted to html. It is not affected by the size of the display. In addition all animations and effects are also supported. Thus it is strongly recommended that you use Office XP and above.
32.How to delete the documents that I shared?
 The host can delete the shared documents. At the Table of Content frame, right click and choose to delete either all the share documents or one file.
33.When I share my screen, others don't see the full color
 When performing a screen share, the software will only use 256 colors in order to save bandwidth. To save bandwidth further, you can choose to share your screen at lower resolutions (800 x 600 or 640 x 480).
34.How to let others control my screen?
 First you have to be a presenter, then perform 'screen share'. When the other participant see your screen, he can 'raise hand' to ask for control of your screen. You will be able to see a 'hand' icon next to his name in the participant list at the bottom right corner. To allow him to control your screen, double click on his name and do not move your mouse. He will be able to control your screen. To hide/unhide the participant list, press F2. To take back control, just move your mouse. To stop screen share, click 'Stop' or press ESC.
35.How to use 'Screen Snapshot'?
 Click on the 'Screen Snapshot' icon. A 'Help' dialogue box will be displayed.
Click OK. Press 'Print Screen' button on your keyboard. Go to the application which you want to screen capture. Hold the left mouse button and drag to define the required area. A preview of the captured area will be shown. Click 'OK' to confirm. Your screen capture will then be transmitted to all participants.
36.During web browsing, others do not see the same web page as me.
 When you are a presenter, activates web browsing and browses to web pages that requires authentication (e.g. web email), for security reasons, others will not see the web page that you browse to. In this case, please use 'Screen Share'. When you click on links in pages that pops up in a new window, others will not follow you to that web page.
37.The slide that I am in is different from others.
 If there is no presenter in the conference and you have manually browsed to other slides, everybody will see their current slide as there is no synchronization. When somebody becomes a presenter, everybody will synchronize to the slide that the presenter is at. If you browse to other slides, your slide will only be synchronized again only when the presenter changes slide.
38.How to change the color of the annotation tools?
 After selecting the required tool (laser pointer, pen, highlighter or text) click on the color palette and choose your desired color.
39.In recording, what is recorded?
 During recording (Only Host can record), the video of the speaker is recorded. The audio of all speakers is recorded. All data (slides, annotations etc) are also recorded, except screen share and 'Secondary input'. All files and documents need to be downloaded to the host's computer (unless the file is uploaded by the host). Thus, before the download is complete, you cannot end the conference or transfer the host to others, unless you give up the recording.
40.Where is the recorded file stored?
 When you stop the conference or transfer host, the system will prompt you for the location to save the recorded file (.acm). You can also specify a location where all your recorded conference will be saved. In the host application, go to 'Settings' – 'preference', check 'automatically save conference recording to this folder' and specify the desired folder.
41.How to open the recorded file?
 Double click on the acm file or through the host application. Click on 'File' – 'open' and browse to the required acm file.
42.How to preview the recorded conference session?
 After opening the acm file, click 'Edit' – 'preview'. You can also trim the portions of the video that you do not want.
43.How to distribute the recorded conference?
 Click on 'File' – 'Publish' and choose whether to publish to local drive, CD/DVD or upload to the conference server. The published files are in wmv and html. Thus viewers only need Internet Explorer and Windows Media Player.