Aural and Haptic Displays
Aural and Haptic Displays
Aural and Haptic Displays
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Virtuelle Realität<br />
<strong>Aural</strong> Qualities<br />
• localization / spatialization<br />
localization is our brain's ability to determine the location from<br />
which a sound is emanating<br />
• we localize sounds using cues such as the time <strong>and</strong> volume<br />
differences of when a sound reaches each ear, <strong>and</strong> the differences in<br />
the actual sounds caused by the shape of our bodies, especially the<br />
outer ear<br />
<br />
spatialization is our technology's ability to make a sound appear<br />
to come from particular points in space<br />
• spatialization is easier with headphones because we can directly<br />
control what is heard by each ear<br />
Prof. B. Jung Virtuelle Realität, WS 2006/07<br />
<strong>Aural</strong> Qualities<br />
• Masking<br />
loud sounds mask softer sounds<br />
physical objects can mask a sound (often without completely<br />
occluding it)<br />
speaker systems cannot effectively mask real-world sounds<br />
closed headphones are best for experiences where the<br />
participant is only supposed to hear sounds from the virtual world<br />
• Amplification<br />
need to boost the sounds to hearable levels<br />
must take care not to amplify sounds too much, especially with<br />
headphones<br />
Prof. B. Jung Virtuelle Realität, WS 2006/07<br />
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