Philips 4-Channel Sound Card - Manual (Page 42)

Philips Seismic Edge
 
42
WHAT IS QEM?
QEM (QSound Environmental Modeling) is an environmental audio
rendering engine providing reverberation and other special audio
effects. It is compatible with the EAX  API (Application
Programming Interface) provided to software developers by Creative
Labs, Inc.
WHAT DOES QEM DO?
In real life, every room, or ''environment'' you enter has some sort of
reverberant quality, depending on different factors like its size, and
the material the surrounding objects (e.g. walls, mountains, etc.) are
made of.
QEM attempts to model this in a game world, by applying reverb
effects to DirectSound audio streams, by way of presets that can be
either set manually, or called automatically from within an ''EAX-
enabled'' game.
How QEM Works
From a game player's perspective, this means that they can get ambi-
ent reverb effects on all the Direct Sound games they play. With the
Philips Seismic Edge, there are 2 ways they could get this:
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