# What Do Virtual Objects Sound Like? | Two Minute Papers #41

## Метаданные

- **Канал:** Two Minute Papers
- **YouTube:** https://www.youtube.com/watch?v=ZaFqvM1IsP8
- **Дата:** 27.01.2016
- **Длительность:** 2:23
- **Просмотры:** 4,670
- **Источник:** https://ekstraktznaniy.ru/video/14884

## Описание

In many episodes about computer graphics, we explored works on how to simulate the motion and the collision of different bodies. However, sounds are just as important as visuals, and there are really cool techniques out there that take the geometry and material description of such objects and they simulate how smashing them together would sound like. What is really cool is that the technique also offers editing capabilities. You compute a simulation only once, and then, edit and explore as much as you desire.

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The paper "Interactive Acoustic Transfer Approximation for Modal Sound " is available here:
http://www.cs.columbia.edu/cg/transfer/

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## Транскрипт

### Segment 1 (00:00 - 02:00) []

dear fellow Scholars this is 2minute papers with Caro in many episodes about computer Graphics we explored works on how to simulate the motion and the Collision of different bodies however sounds are just as important as visuals and there are really cool techniques out there that take the geometry and material description of such objects and they simulate how smashing them together would sound like this one is a more sophisticated method which is not only fast than previous works but can simulate a greater variety of materials and we can also edit the solutions without needing to recompute the expensive equations that yield the sound as a result the faster part comes from a set of optimizations most importantly something that is called mesh simplification this means that the simulations are done not on the original but vastly simplified shapes the result of this simplified simulation is close to indistinguishable from the real deal but is considerably cheaper to compute what is really cool is that the technique also offers editing capabilities you compute the simulation only once and then edit and explore as much as you desire the stiffness and damping parameters can be edited without any additional work quite a few materials can be characterized with this the model can also approximate a quite sophisticated phenomenon where the frequency of a sound is changing in time one can for instance specify stiffness values that vary in time to produce these cool frequency shifting effects it is also possible to exaggerate or dampen different frequencies of these sound effects and these results are given to you immediately this is meeting all my standards amazing piece of work thanks for watching and for your generous support and I'll see you next time