Merging Pyramix User Manual page 648

Sampling Rate Converters
Grayed out if no SRCs are present. Each of the four uni-directional converters can be configured as Bypass, Input or
Output. On a specific in/out channel pair a sampling rate conversion can be applied only in one direction, either
input or output. The Speed on physical wire setting (see below) should be set to the project's sampling rate (aka
" single-wire mode ") whenever the SRCs are used, since channel pairs that are spread over several wires will not
be sample rate converted properly.
Up to 192 kHz, each column represents one XLR connector (one pair of channels) with its associated SRC chip.
The following configurations can be selected:
• None : or bypass, the SRC is transparent
• Input : The SRC works on the input path and converts the incoming signal to the project's sampling rate
• Ref1/2 through Ref 7/8 : The SRC is inserted in the output path and converts the output signal to the sam-
pling rate of the signal present at the input chosen as reference.
At 8FS (DXD/DSD), the AES II daughter card has a special mode that is enabled by selecting 8FS to nFS in the
Speed on physical wire field. This mode provides a fixed set of 2 input and 2 output paths and enables a real-time
conversion from 384kHz/352.8kHz down to 192kHz/44.1kHz and vice-versa. Only XLRs 1/2 and 3/4 are used. For
the outputs, the reference input for the sampling frequency is selectable in the Sampling Rate Converters array.
For further information and configuration examples please see: AES II with SRC on page 727
High Sampling Frequency (24 Inputs / 24 Outputs
Speed on physical wire (when possible)
Sets the rate of the AES stream on the I/Os.
44.1k / 48k : standard mode
88.2k / 96k : also called single wire at 96 kHz
176.4k / 192k : (only AES 2) also called single wire at 192 kHz
8 FS to nFS : (only AES 2 - SRC) special mode for the sampling rate converters for DXD/DSD projects (see explana-
tion of the sampling rate converters)
DSD mapping (DSD / DXD Projects only)
Sets the mapping for the DSD I/Os
Input
SONY
P3D
Output
SONY
P3D
I/O Audio Format (DSD / DXD Projects only)
Selects the I/O mode when a DSD or DXD project is opened.
Input
DSD
DXD
Output
DSD
DXD
Settings : I/O Interfaces 28 - 648