Acoustic spatial projector
First Claim
1. One or more nontransitory computer-readable media having computer-executable instructions embodied thereon that when executed, facilitate a method for creating audio channels for producing an acoustic field by mixing, on a reflective surface, sounds associated with the audio channels, the method comprising:
- (a) using audio information, determining a set of audio channels, wherein each channel is associated with a sound source, and wherein the set of audio channels includes a first subset of channels and a second subset of channels, wherein each audio channel of the first subset of audio channels has an associated sound source that emits sound waves directed at a reflective surface prior to being received at a listening location, wherein one or more of the sound sources associated with the first subset of audio channels is positioned at one or more angles with respect to a first reflective surface, wherein a second reflective surface is positioned horizontally beneath the acoustic spatial projector, and wherein the acoustic spatial projector rests upon one or more supports in contact with the horizontal reflective surface, wherein the one or more supports elevate the acoustic spatial projector at a distance above the reflective surface that allows a portion of reflected sound to reflect under the acoustic spatial projector;
(b) determining a first delay to apply to a first channel of the set of audio channels, wherein the first delay is determined as a function of an estimated duration of time for sound waves emitted by a first sound source associated with the first channel to reach the listening location; and
(c) determining a frequency compensation to apply to at least one channel of the second subset of audio channels, wherein the frequency compensation is based on a model acoustic response that includes information relating to at least one of amplitude, timing, phase response, or frequency response.
0 Assignments
0 Petitions
Accused Products
Abstract
A method and system for producing an acoustic spatial projection by creating audio channels for producing an acoustic field by mixing, on a reflective surface, sounds associated with the audio channels is provided. In one embodiment, a method includes the step of using audio information to determining a set of audio channels. Each audio channel is associated with a sound source, such as one or more loudspeakers, and for a subset of the audio channels, the associated sound sources emit sound waves directed at a reflective surface prior to being received at a listening location. The method further includes steps of determining an acoustic response of a listening environment; steps of determining a delay to apply to one or more channels of the set of audio channels; and steps of determining a frequency compensation to apply to one or more channels of the audio channels.
-
Citations
19 Claims
-
1. One or more nontransitory computer-readable media having computer-executable instructions embodied thereon that when executed, facilitate a method for creating audio channels for producing an acoustic field by mixing, on a reflective surface, sounds associated with the audio channels, the method comprising:
-
(a) using audio information, determining a set of audio channels, wherein each channel is associated with a sound source, and wherein the set of audio channels includes a first subset of channels and a second subset of channels, wherein each audio channel of the first subset of audio channels has an associated sound source that emits sound waves directed at a reflective surface prior to being received at a listening location, wherein one or more of the sound sources associated with the first subset of audio channels is positioned at one or more angles with respect to a first reflective surface, wherein a second reflective surface is positioned horizontally beneath the acoustic spatial projector, and wherein the acoustic spatial projector rests upon one or more supports in contact with the horizontal reflective surface, wherein the one or more supports elevate the acoustic spatial projector at a distance above the reflective surface that allows a portion of reflected sound to reflect under the acoustic spatial projector; (b) determining a first delay to apply to a first channel of the set of audio channels, wherein the first delay is determined as a function of an estimated duration of time for sound waves emitted by a first sound source associated with the first channel to reach the listening location; and (c) determining a frequency compensation to apply to at least one channel of the second subset of audio channels, wherein the frequency compensation is based on a model acoustic response that includes information relating to at least one of amplitude, timing, phase response, or frequency response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for creating audio channels for producing an acoustic field by mixing sound waves associated with the audio channels on a reflective surface, the method comprising:
-
(a) using audio information, determining a set of audio channels, wherein each channel is associated with a sound source included in an acoustic spatial projector, and wherein the set of audio channels includes a first subset of channels and a second subset of channels, wherein each audio channel of the first subset of audio channels has an associated sound source that emits sound waves directed at a reflective surface prior to being received at a listening location, wherein one or more of the sound sources associated with the first subset of audio channels is positioned at one or more angles with respect to another of the sound sources associated with the first subset of audio channels, wherein the reflective surface is mechanically coupled to the acoustic spatial projector and positioned at a distance from the acoustic spatial projector, wherein the reflective surface is open at the top and the bottom and curved on the left and right sides, wherein the reflective surface is positioned behind, and faces a back side of, the acoustic spatial projector, wherein an upper portion of the reflective surface extends vertically higher than the acoustic spatial projector and a lower portion of the reflective surface extends vertically lower than the acoustic spatial projector, and wherein the distance of the reflective surface from the acoustic spatial projector corresponds to the one or more angles of the one or more sound sources; (b) determining a first delay to apply to a first channel of the set of audio channels, wherein the first delay is determined as a function of an estimated duration of time for sound waves emitted by a first sound source associated with the first channel to reach the listening location; and (c) determining a frequency compensation to apply to at least one channel of the second subset of audio channels, wherein the frequency compensation is based on a model acoustic response that includes information relating to at least one of amplitude, timing, phase response, or frequency response. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A system for use in producing a three-dimensional acoustic field by mixing sounds associated with audio channels on a reflective surface, the system comprising:
-
an enclosure containing at least three sound sources including a left sound source directionally positioned towards a vertical reflective surface at a first angle, a right sound source directionally positioned towards the vertical reflective surface at a second angle, and a center-front sound source directionally positioned toward the listening area, wherein the left sound source and the right sound source emit sound waves directed at the vertical reflective surface prior to being received at a listening location, wherein the vertical reflective surface is positioned behind the enclosure at a distance from the left and right sound sources, wherein the enclosure is supported by a base or feet resting on a horizontal reflective surface beneath the enclosure which elevate the enclosure above the horizontal reflective surface, and wherein sound is directed toward the horizontal reflective surface; one or more processors that execute instructions for facilitating a method of creating audio channels for producing an acoustic field by mixing sounds associated with the audio channels on the reflective surface, the method comprising; (1) using audio information, determining a set of audio channels, wherein each channel is associated with a sound source, and wherein the set of audio channels includes a first subset of channels and a second subset of channels, wherein each audio channel of the first subset of audio channels has an associated sound source that emits sound waves directed at the reflective surface prior to being received at a listening location, wherein the audio channels of the first subset of audio channels are respectively associated with the left sound source and the right sound source; (2) determining a first delay to apply to a first channel of the set of audio channels, wherein the first delay is determined at least in part on the distance of the reflective surface from the enclosure; and (3) determining a frequency compensation to apply to at least one channel of the second subset of audio channels, wherein the frequency compensation is based on a model acoustic response that includes information relating to at least one of amplitude, timing, phase response, or frequency response. - View Dependent Claims (19)
-
Specification