Huron & SNAP Documentation

Order of Reflections
HURON TECHNICAL REFERENCE
The order of reflection is based on the number of surfaces a sound wave has reflected off before
reaching the listener. Thus, first order reflections have bounced off a single surface, while third
order reflections have bounced off three surfaces before reaching the listener.
Frequency Domain
A common way of referring to the mathematical representation of signals, where the signal is
displayed in terms of its frequency components. The frequency domain representation of a signal is
sometimes called a signal's spectrum.
HeadTracking
Is the real time process of monitoring the Angle, Elevation, Roll and Location of a listener’s head.
HRTF
Head Related Transfer Function, a mathematical model that characterises the filtering of a sound
source before it reaches the eardrum.
Impulse Response
An impulse response is the way a system (such as a room) responds when presented with an impulse.
An impulse response is specific to a particular system. The recorded impulse response of a system
(such as those obtained using Lake Technology’s Measure tool) can be convolved with audio signals
to create the impression of sound actually coming from the measured system.
LakeNet
Is the message protocol used by Lake applications for TCP/IP communication. External computers
communicate with Huron applications using LakeNet. The LakeNet interface has been superseded
by SNAP.
LakeBus
Provides a method for passing messages between Lake applications, along the Huron Bus.
Latency
Inherent delay due to signal processing. In Lake Technology applications latency is measured in
samples or milliseconds.
HURON TECHNICAL MANUAL PAGE 307