Lisa LCD
58
OGG format specifications
8.6.4
AAC formats
MPEG2-AAC-LC-2.0.0.0 and MPEG4-AAC-LC-2.0.0.0 streams, i.e. the low complexity profile with
maximum of two channels can be decoded. For streams containing more than one element and/or
element type, the first one that appears in the stream is selected.
The table below shows the maximum bitrates allowed for two channels for a specific samplerate as
defined by the AAC specification, while the Lisa itself does actually not have a lower limit.
Please note that bitrates above 384 kbps are not tested. Also: 64000 Hz, 88200 Hz and 96000 Hz
AAC files are played, but with wrong speed
8.7
Ports used by Lisa devices
For correct operation of the Lisa on networks with restrictions on incoming or outgoing traffic, TCP traffic
needs to be allowed on specific ports. This section specifies which ports need to be open for the Lisa to
function properly. Two sets of ports are discussed, both should be considered:
Ports used for device-related activities (configuration, monitoring, etc.)
Ports used for streaming audio
In addition, all Lisa devices will try to connect to the activation server during startup until the activation
succeeds (see
). Regardless of the provisioning platform (if any), the device must be
allowed to reach the activation server. Once activated, the device will no longer try to connect to the
activation server:
activate.streamit.eu, port 80
