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About
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CobraNet is ...
An audio networking system developed by Peak Audio (a division of Cirrus Logic, Inc.) that allows
real-time transmission and reception of uncompressed digital audio signals via a Fast Ethernet
network cable. The network can simultaneously handle up to 64 input and output channels, for a
total of 128 channels (64 channels if repeater hubs are used). The maximum number of channels
than can be handled in practical situations may be lower due to performance limitations imposed
by the equipment used and the condition of the audio signal.
Currently, the CobraNet network will handle 16, 20, or 24-bit audio at sampling rates of 48 or 96 kHz.
The CobraNet network is capable of transmitting control data at the same time as the audio
signals. The types of control data transmitted are determined by the equipment used.
The CobraNet network imposes a 5.33-millisecond (2.67 milliseconds or 1.33 milliseconds with
some settings) latency on transferred audio signals.
Refer to the Peak Audio home page for more details: http://www.peakaudio.com/
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Bundles
Audio is transmitted over the CobraNet network in units known as "bundles." These bundles are
processed at the receiving end to reconstitute the original audio signals. In the case of the MY16-C
a bundle can contain from 3 to 8 channels. Each bundle is identified by a number from 0 to 65,279,
and audio transmission via the network becomes possible when the same bundle number is
specified at both the transmitting and receiving devices. Bundles can be transmitted and received
over the entire network as long as sufficient network resources are available. The system is
designed so that each device can transmit and receive up to 8 bundles simultaneously, but the
actual number of bundles that can be handled will depend on the capabilities of the equipment
used. The MY16-C can be set to handle 2 transmit bundle numbers and 2 receive bundle
numbers. The bundle numbers can be specified via the rotary switches on the MY16-C card itself,
or via the device or software used by the device in which the card is installed. The procedure for
setting the MY16-C bundle numbers is described in the "Controls & Functions" section on page 8.
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MY16-C Owner's Manual
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