Physics-based audio and haptic synthesis
Disclosed herein are systems and methods for generating and presenting virtual audio for mixed reality systems. A method may include determining a collision between a first object and a second object, wherein the first object comprises a first virtual object. A memory storing one or more audio models can be accessed. It can be determined if the one or more audio models stored in the memory comprises an audio model corresponding to the first object. In accordance with a determination that the one or more audio models comprises an audio model corresponding to the first object, an audio signal can be synthesized, wherein the audio signal is based on the collision and the audio model corresponding to the first object, and the audio signal can be presented to a user via a speaker of a head-wearable device. In accordance with a determination that the one or more audio models does not comprise an audio model corresponding to the first object, an acoustic property of the first object can be determined, a custom audio model based on the acoustic property of the first object can be generated, an audio signal can be synthesized, wherein the audio signal is based on the collision and the custom audio model, and the audio signal can be presented, via a speaker of a head-wearable device, to a user.
1. A method comprising:
presenting, via a display of a wearable head device, a view of a virtual environment;
determining a collision between a first object and a second object in the virtual environment, wherein the first object comprises a first virtual object;
accessing a memory storing acoustic data;
determining whether the acoustic data stored in the memory comprises first acoustic data corresponding to the first object;
in accordance with a determination that the acoustic data stored in the memory comprises the first acoustic data corresponding to the first object:
determining a first audio signal based on the collision and based further on the first acoustic data corresponding to the first object, and
concurrently with presenting the view of the virtual environment via the display, presenting the first audio signal via a speaker of the wearable head device; and
in accordance with a determination that the acoustic data stored in the memory does not comprise the first acoustic data corresponding to the first object:
determining an acoustic property of the first object,
determining a second audio signal based on the collision and based further on the acoustic property, and
concurrently with presenting the view of the virtual environment via the display, presenting the second audio signal via the speaker of the wearable head device.
2. The method of claim 1 , wherein the second object comprises a second virtual object.
3. The method of claim 1 , wherein the second object comprises a real object.
4. The method of claim 3 , further comprising:
receiving, via one or more sensors of the wearable head device, sensor data associated with the real object;
determining an acoustic characteristic of the second object based on the sensor data; and
generating an audio model corresponding to the second object based on the acoustic characteristic.
5. The method of claim 1 , wherein the determining the first audio signal comprises determining a material of the first object and applying a property of the material as input to an audio synthesizer.
6. The method of claim 1 , wherein the determining the first audio signal comprises:
receiving a first property of the first object from a database;
observing a second property of the first object; and
applying the first property and the second property as input to an audio synthesizer.
7. A system comprising:
a wearable head device comprising:
a display;
a speaker; and
one or more sensors; and
one or more processors configured to perform a method comprising:
presenting, via the display, a view of a virtual environment;
determining a collision between a first object and a second object in the virtual environment, wherein the first object comprises a first virtual object;
accessing a memory storing acoustic data;
determining whether the acoustic data stored in the memory comprises first acoustic data corresponding to the first object;
in accordance with a determination that the acoustic data stored in the memory comprises the first acoustic data corresponding to the first object:
determining a first audio signal based on the collision and based further on the first acoustic data corresponding to the first object, and
concurrently with presenting the view of the virtual environment via the display, presenting the first audio signal via the speaker; and
in accordance with a determination that the acoustic data stored in the memory does not comprise the first acoustic data corresponding to the first object:
determining an acoustic property of the first object,
determining a second audio signal based on the collision and based further on the acoustic property, and
concurrently with presenting the view of the virtual environment via the display, presenting the second audio signal via the speaker.
8. The system of claim 7 , wherein the second object comprises a second virtual object.
9. The system of claim 7 , wherein the second object comprises a real object.
10. The system of claim 9 , wherein the method further comprises:
receiving, via the one or more sensors, sensor data associated with the real object;
determining an acoustic characteristic of the second object based on the sensor data; and
generating an audio model corresponding to the second object based on the acoustic characteristic.
11. The system of claim 7 , wherein the determining the first audio signal comprises determining a material of the first object and applying a property of the material as input to an audio synthesizer.
12. The system of claim 7 , wherein the determining the first audio signal comprises:
receiving a first property of the first object from a database;
observing a second property of the first object; and
applying the first property and the second property as input to an audio synthesizer.
13. A non-transitory computer-readable medium storing instructions which, when executed by one or more processors, cause the one or more processors to perform a method comprising:
presenting, via a display of a wearable head device, a view of a virtual environment;
determining a collision between a first object and a second object in the virtual environment, wherein the first object comprises a first virtual object;
accessing a memory storing acoustic data;
determining whether the acoustic data stored in the memory comprises first acoustic data corresponding to the first object;
in accordance with a determination that the acoustic data stored in the memory comprises the first acoustic data corresponding to the first object:
determining a first audio signal based on the collision and based further on the first acoustic data corresponding to the first object, and
concurrently with presenting the view of the virtual environment via the display, presenting the first audio signal via a speaker of the wearable head device; and
in accordance with a determination that the acoustic data stored in the memory does not comprise the first acoustic data corresponding to the first object:
determining an acoustic property of the first object,
determining a second audio signal based on the collision and based further on the acoustic property, and
concurrently with presenting the view of the virtual environment via the display, presenting the second audio signal via the speaker of the wearable head device.
14. The non-transitory computer-readable medium of claim 13 , wherein the second object comprises a second virtual object.
15. The non-transitory computer-readable medium of claim 13 , wherein the second object comprises a real object.
16. The non-transitory computer-readable medium of claim 15 , wherein the method further comprises:
receiving, via one or more sensors of the wearable head device, sensor data associated with the real object;
determining an acoustic characteristic of the second object based on the sensor data; and
generating an audio model corresponding to the second object based on the acoustic characteristic.
17. The non-transitory computer-readable medium of claim 13 , wherein the determining the first audio signal comprises:
receiving a first property of the first object from a database;
observing a second property of the first object; and
applying the first property and the second property as input to an audio synthesizer.