SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Robotic Perception of Material: Experiments with Shape-Invariant Acoustic Measures of Material Type
The 4th International Symposium on Experimental Robotics IV
Everyday listening and auditory icons
Everyday listening and auditory icons
Presence: Teleoperators and Virtual Environments
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
ICMAI '02 Proceedings of the Second International Conference on Music and Artificial Intelligence
Physically based models for liquid sounds
ACM Transactions on Applied Perception (TAP)
A Percussive Sound Synthesizer Based on Physical and Perceptual Attributes
Computer Music Journal
The AHI: an audio and haptic interface for contact interactions
SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Computer Music Journal
Computer Music Modeling and Retrieval. Genesis of Meaning in Sound and Music
Perception of Impacted Materials: Sound Retrieval and Synthesis Control Perspectives
Computer Music Modeling and Retrieval. Genesis of Meaning in Sound and Music
A Tangible Game as Distributable Platform for Psychophysical Examination
HAID '09 Proceedings of the 4th International Conference on Haptic and Audio Interaction Design
Sound design and perception in walking interactions
International Journal of Human-Computer Studies
Bimodal perception of audio-visual material properties for virtual environments
ACM Transactions on Applied Perception (TAP)
Toward high-quality modal contact sound
ACM SIGGRAPH 2011 papers
Haptic-auditory rendering and perception of contact stiffness
HAID'06 Proceedings of the First international conference on Haptic and Audio Interaction Design
Imagine the sounds: an intuitive control of an impact sound synthesizer
CMMR/ICAD'09 Proceedings of the 6th international conference on Auditory Display
HAID'12 Proceedings of the 7th international conference on Haptic and Audio Interaction Design
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Contact sounds can provide important perceptual cues in virtual environments. We investigated the relation between material perception and variables that govern the synthesis of contact sounds. A shape-invariant, auditory-decay parameter was a powerful determinant of the perceived material of an object. Subjects judged the similarity of synthesized sounds with respect to material (Experiment 1 and 2) or length (Experiment 3). The sounds corresponded to modal frequencies of clamped bars struck at an intermediate point, and they varied in fundamental frequency and frequency-dependent rate of decay. The latter parameter has been proposed as reflecting a shape-invariant material property: damping. Differences between sounds in both decay and frequency affected similarity judgments (magnitude of similarity and judgment duration), with decay playing a substantially larger role. Experiment 2, which varied the initial sound amplitude, showed that decay rate---rather than total energy or sound duration---was the critical factor in determining similarity. Experiment 3 demonstrated that similarity judgments in the first two studies were specific to instructions to judge material. Experiment 4, in which subjects assigned the sounds to one of four material categories, showed an influence of frequency and decay, but confirmed the greater importance of decay. Decay parameters associated with each category were estimated and found to correlate with physical measures of damping. The results support the use of a simplified model of material in virtual auditory environments.