Specifications
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DIGIGRID DLS/DLI
6.1 SGP Mode: Controlling Clock
Think of a DLI/DLS as an interface with two distinct halves. One side communicates with DigiLink-compatible I/O interfaces. The
other communicates with the SoundGrid network. Of course, these two sides constantly work together, but each has its own set of
rules regarding sync. When you congure a device, it’s important to understand which “sync” you’re controlling.
DLI/DLS can clock internally, and act as the network master, or it can slave to the network’s sample rate.
SoundGrid Studio uses Ethernet to stream audio between devices on a SoundGrid network.
Synchronization clock is also carried over Ethernet. This method of providing clock is called Sync over
Ethernet (SoE). SoundGrid I/O devices can be clocked by other means, but SoE is a more convenient way to
provide clock information to devices on the SoundGrid network.
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When DLI/DLS is the SoundGrid (SoE) master, it may receive clock from the DigiLink-compatible I/O
Internal clock (or any other source it may use), directly through the DigiLink port. Alternatively,
The DLI/DLS may clock to its own Internal clock and distribute clock to the DigiLink-compatible
I/O devices attached.
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When DLI/DLS is clocked from SoE, it can be the master over the DigiLink-compatible I/O devices and
provide them Loop Sync or Word Clock.
When DLI/DLS is set to slave, its sample rate is determined by another device on the SoundGrid network, one
that has been set as the network master. All other devices in the network are slaved to that same master.
The network’s SoE Clock Master/Slave status is set in the Device Racks of SoundGrid Studio. The master
clock device will distribute the clock and sample rate to all I/Os in the network.
The SoundGrid Studio Application, or any other SoundGrid host application, can be set as Sample Rate Master. The application can
then determine the sample rate for the entire network. This provides smooth operation between of the SoundGrid driver with the
DAW applications using it.
Alternatively, the application can be set as a Sample Rate Slave, using the sample rate of the DLI/DLS’s external clock source to set
the sample rate for the network. This enables the network to follow the sample rate of that source.