User`s manual

LOLA: Low Latency Audio Visual Streaming System
Select the “network” tab, and under the “show” menu display all total (green), input (yellow)
and output (red) real time traffic statistics. When everything is working fine (with uncompressed
video - default) you should see something like the above picture: a very stable constant traffic flow,
both in and out. If the 2 nodes are configured in the same way (same frame rate, same resolution,
same number of audio channels, etc) the input and output traffic shall be very close to each other. If
you see that the input traffic is unstable (and of course LOLA loses lot of audio and video data),
your should start investigating the network setup. It means that at some point of the connection
between the remote sending node and your node traffic is dropped. This can happen in the various
places: the network backbone connections (check with your network supplier), or on the remote
Local Area Network (check with the remote partner) or in your own Local Area Network. In case of
LAN problems, check that you do not have any firewall of any kind in place un the LAN, because
most of them cannot cope with LOLA traffic correctly. You should also check that your LAN
switches can work with LOLA traffic (at 30000 Packets Per Second PPS for 30fps in color), and in
case check if you have any IP traffic shaper in place which can affect LOLA traffic, too.
4.8. The Color Menu
The “Color” menu is intended for use with not yet supported cameras (digital cameras or
other types) and thus shall not be used for normal operations with analog cameras. Please ensure
that “Color Bayer Decoding” is not checked. Refer to Appendix A for further information on this
work in progress.
4.9. Audio Recording
LOLA can record an audio session at full quality, both for the local and the remote audio. If
you specify a file name and press the “Start Now” button on the main windows, LOLA will create
into its default folder 2 audio files, with “_Local” and and “_Remote” suffixes which contains all
audio channels being send/received during a session. Please note that if you use more than 2 audio
channels, the audio recording files will contain all audio channels, thus you need an appropriate
audio player/editor in order to be able to open them all. Inside LOLA folder you will also find
LolaWavSplitter.exe: a small utility to extract channels from a multichannel .wav file.
4.10. Chat window
In order to resolve possible issues with the remote host, Lola has the ability to “chat” with
the remote node. To open the chat window select the Chat window command available in the Tools
menu or simply press Ctrl+L. The remote address where the message will be sent is the same as that
indicated in the main window in the Remote Session/IP Address field. To send the message press
CTRL+Return. The chat works also when LOLA is not connected.