Abstract: Methods, systems, and computer readable media for simulating sound propagation are disclosed. According to one method, the method includes decomposing a virtual environment scene including at least one object into a plurality of surface regions, wherein each of the surface regions includes a plurality of surface patches. The method further includes organizing sound rays generated by a sound source in the virtual environment scene into a plurality of path tracing groups, wherein each of the path tracing groups comprises a group of the rays that traverses a sequence of surface patches. The method also includes determining, for each of the path tracing groups, a sound intensity by combining a sound intensity computed for a current time with one or more previously computed sound intensities respectively associated with previous times and generating a simulated output sound at a listener position using the determined sound intensities.

Abstract: Methods, systems, and computer readable media for acoustic classification and optimization for multi-modal rendering of real-world scenes are disclosed. According to one method for determining acoustic material properties associated with a real-world scene, the method comprises obtaining an acoustic response in a real-world scene. The method also includes generating a three-dimensional (3D) virtual model of the real-world scene. The method further includes determining acoustic material properties of surfaces in the 3D virtual model using a visual material classification algorithm to identify materials in the real-world scene that make up the surfaces and known acoustic material properties of the materials. The method also includes using the acoustic response in the real-world scene to adjust the acoustic material properties.

Abstract: Methods, systems, and computer readable media for acoustic classification and optimization for multi-modal rendering of real-world scenes are disclosed. According to one method for determining acoustic material properties associated with a real-world scene, the method comprises obtaining an acoustic response in a real-world scene. The method also includes generating a three-dimensional (3D) virtual model of the real-world scene. The method further includes determining acoustic material properties of surfaces in the 3D virtual model using a visual material classification algorithm to identify materials in the real-world scene that make up the surfaces and known acoustic material properties of the materials. The method also includes using the acoustic response in the real-world scene to adjust the acoustic material properties.

Abstract: Methods, systems, and computer readable media for conducting interactive sound propagation and rending for a plurality of sound sources in a virtual environment scene are disclosed. According to one method, the method includes decomposing a virtual environment scene containing a plurality of sound sources into a plurality of partitions and forming a plurality of source group clusters, wherein each of the source group clusters includes two or more of the sound sources located within a common partition. The method further includes determining, for each of the source group clusters, a single set of sound propagation paths relative to a listener position and generating a simulated output sound at a listener position using sound intensities associated with the determined sets of sound propagation paths.

Abstract: Methods, systems, and computer readable media for utilizing ray-parameterized reverberation filters to facilitate interactive sound rendering are disclosed. According to one method, the method includes generating a sound propagation impulse response characterized by a plurality of predefined number of frequency bands and estimating a plurality of reverberation parameters for each of the predefined number of frequency bands of the impulse response. The method further includes utilizing the reverberation parameters to parameterize a plurality of reverberation filters in an artificial reverberator, rendering an audio output in a spherical harmonic (SH) domain that results from a mixing of a source audio and a reverberation signal that is produced from the artificial reverberator, and performing spatialization processing on the audio output.

Abstract: Methods, systems, and computer readable media for conducting interactive sound propagation and rending for a plurality of sound sources in a virtual environment scene are disclosed. According to one method, the method includes decomposing a virtual environment scene containing a plurality of sound sources into a plurality of partitions and forming a plurality of source group clusters, wherein each of the source group clusters includes two or more of the sound sources located within a common partition. The method further includes determining, for each of the source group clusters, a single set of sound propagation paths relative to a listener position and generating a simulated output sound at a listener position using sound intensities associated with the determined sets of sound propagation paths.

Abstract: Methods, systems, and computer readable media for simulating sound propagation are disclosed. According to one method, the method includes decomposing a virtual environment scene including at least one object into a plurality of surface regions, wherein each of the surface regions includes a plurality of surface patches. The method further includes organizing sound rays generated by a sound source in the virtual environment scene into a plurality of path tracing groups, wherein each of the path tracing groups comprises a group of the rays that traverses a sequence of surface patches. The method also includes determining, for each of the path tracing groups, a sound intensity by combining a sound intensity computed for a current time with one or more previously computed sound intensities respectively associated with previous times and generating a simulated output sound at a listener position using the determined sound intensities.