Experiment 1: Realism of scraping sounds

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In this experiment, listeners were provided with an event description and asked to judge the realism of 7 different synthesis methods.

Event description:

PVC rod is scraped along a ceramic tile in a single long line.

Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)
Event description:

PVC rod is scraped along a poplar wood surface in a circle.

Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)
Event description:

Wooden rod is scraped along a basswood surface in a slow back and forth motion.

Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)
Event description:

Wooden rod is scraped along a ceramic surface in one quick scrape.

Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)

Experiment 2: Motion inference from scraping sounds

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In this experiment, participants did not see an event description and instead guessed the motion used to generate the sound. On this webpage, we provide event descriptions for clarity.

Event description:

PVC rod is scraped along a poplar wood surface in a circle.

Audio recording
Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)
Event description:

PVC rod is scraped along a poplar wood surface in a straight line.

Audio recording
Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)
Event description:

Wooden rod is scraped along a basswood surface in 4 short scrapes in a straight line.

Audio recording
Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)
Event description:

Wood rod is scraped along a basswood surface in four back and forth scrapes.

Audio recording
Full model
Only surface IR
No normal force
No non-linearity
Traer et al.
Conan et al. (our implementation)
Thoret et al. (our implementation)

Experiment 3: Realism of rolling sounds

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In this experiment, listeners were provided with an event description and asked to judge the realism of 7 different synthesis methods.

Event description:

A glass ball rolls up the slope on a ceramic tile.

Full model
Only surface IR
Constant IR
Only ball IR
No non-linearity
Conan et al. (our implementation)
Rath and Rochesso (our implementation)
Event description:

A wood ball rolls down the slope on a poplar wood plank.

Full model
Only surface IR
Constant IR
Only ball IR
No non-linearity
Conan et al. (our implementation)
Rath and Rochesso (our implementation)