Huron & SNAP Documentation

Z
THE SIMULATION TOOLS
Figure 22 — The Lake coordinate system
In some tools, a B-format audio stream is used. B-format audio
relies on the theory of Ambisonics, whose coordinate system
differs from the Lake system. In Ambisonics, the X-axis is in
front the user, the Y-axis extends to the left, and the Z-axis
extends upwards, as shown in Figure 23.
Y
Z
Figure 23 — The Ambisonic coordinate system
These coordinate systems specify the location of sound sources
in a 3-dimensional coordinate space. As well as location, sound
sources are also described by an orientation or angle, which
specifies the direction the sound will travel from the source.
Lake uses the azimuth, elevation, and roll paradigm to describe
the orientation of sound sources, as shown in Figure 24.
HURON TECHNICAL MANUAL PAGE 70
Y
X
X