Huron & SNAP Documentation

THE ENGINEERING TOOLS
• 1 96kHz Digital to Analogue converter. This converter must
support data formatted as odd and even samples of the left
and right channels of a standard AES/EBU system.
The measurement of an audio system at 96kHz requires a test
signal generated by the Huron to be sent from the digital output
to a Digital to analogue converter into the system to be
measured. The signal is returned to the Huron via an Analogue
to digital converter and the Digital Input Module. The response
represents the IR of the system, and can be used to create a
finite impulse response file (*.SIM, *.001) file that may be used
in other Lake Applications.
Figure 63 — A schematic of connections to the 96kHz Measurement tool
Patching the 96kHz Measurement Tool
For each instance of 96kHz Measurement, the 96kHz Measure
will output a signal as two 48kHz streams of data. Each stream
carries either the odd samples or the even samples of the 96kHz
signal.
After being transmitted the signal is captured via a microphone
the signal is then piped to the Measure tool from the 96kHz
Analogue to Digital (A/D) converter and the synchronous
AES/EBU digital input module (I/O module). Every separate
microphone (each of which will generate an impulse response)
requires an A/D converter and a synchronous digital I/O
module.
Figure 64 — Patching a channel of the 96kHz Measurement tool correctly
HURON TECHNICAL MANUAL PAGE 206