LAWO edge, Руководство пользователя

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edge - User Manual
Version: 1.0.13/1 Exported on: 22 February, 2024 99 / 154
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7.6 .edge - Audio Handling
This topic describes what happens to the different essences during the SDI to IP conversion process. In particular, it is
important to understand how the audio channels are handled, as .edge supports audio shuffling and test-tone insertion (on
both the input and output sides). These parameters can be adjusted whenever you configure an IP sender or SDI output.
Overview
Options for IP Senders
Audio (de-embedding) – independent mono audio channel mapping per IP sender, selectable number of channels (up to
16 or 32 depending on the SDI signal type)
Test tone generator insertion
– 400Hz to 1kHz frequency control with decreasing ramp (0.5dB per channel)
Options for SDI Outputs
Audio (embedding) – independent mono audio channel mapping per SDI output, selectable number of channels (up to
64)
Test tone generator insertion
– 400Hz to 1kHz frequency control with decreasing ramp (0.5dB per channel)
The examples that follow describe how this works for different SDI signal types.
SD and HD (SDI)
For SD and HD signals sent to an SDI input, .edge accepts the usual 16 audio channels. These can be routed to four IP
senders, in any combination.
SDI to IP Conversion (for SD/HD-SDI)
When receiving audio from the network, each IP receiver accepts up to 64 audio channels. These can include other audio
signals available on the IP network as well as the ones received by the SDI input.
For the final audio packaging, any of the 64 channels sent to the four IP receivers can be shuffled into the final 16 audio
channels sent to the SDI
output.
Thus, it is possible to replace some or all of the original audio channels with those from a different source (e.g. audio mixing
console).
IP to SDI Conversion (for SD/HD-SDI)