Techniques for localized perceptual audio
Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.
1. A method for localized sound reproduction for immersive audio, the method comprising:
receiving an audio signal containing a first audio object;
accessing metadata associated with the first audio object to determine a first perceptual location and a second perceptual location, the metadata including an audio image size and an audio image position;
presenting the first audio object with at least a first transducer and a second transducer, the presenting using weight factors to place the first audio object at the first perceptual location at a first resolution; and
moving presentation of the first audio object to the second perceptual location at a second resolution by adjusting weight factors for the second transducer and a third transducer, the second resolution differing from the first resolution,
wherein first and second resolutions are dependent on spacing between adjacent transducers.
2. The method of claim 1 wherein the first perceptual location and the second perceptual location are disposed away from a screen.
3. The method of claim 2 wherein the screen is one of a projection screen, silver screen, television display, and computer display.
4. The method of claim 2 wherein the first perceptual location corresponds to a 3D visual cue.
5. The method of claim 4 wherein the second perceptual location corresponds to the 3D visual cue.
6. The method of claim 1 further comprising interpolating the first perceptual location between a start position and an end position.
7. The method of claim 1 wherein the audio image position is defined by x, y and z coordinates.
8. The method of claim 1 wherein the metadata include audio image shape.
9. The method of claim 1 further comprising moving presentation of the first audio object to a third perceptual location by adjusting weight factors for the third transducer and a fourth transducer.
10. The method of claim 9 wherein each of the first, second, third, and fourth transducers are configured to be individually controlled.
11. The method of claim 9 wherein first, second, third, and fourth transducers are non-uniformly spaced apart.
12. The method of claim 9 wherein first, second, third, and fourth transducers are disposed as a row.
13. The method of claim 1 further comprising presenting a second audio object of the audio signal at a perceptual location during the presenting of the first audio object at the first perceptual location, the perceptual location of the second audio object determined from metadata.
14. The method of claim 1 wherein the second transducer and the third transducer have different frequency range.
15. The method of claim 1 wherein the second transducer and the third transducer have different fidelity.
16. A method for localized sound reproduction in a theatrical venue for immersive audio, the method comprising:
receiving an audio signal containing a first audio object;
accessing metadata associated with the first audio object to determine a first perceptual location and a second perceptual location, the metadata including start position and end position for the first audio object;
presenting the first audio object with at least a first transducer and a second transducer, the presenting using weight factors to place the first audio object at the first perceptual location at a first resolution; and
moving presentation of the first audio object to the second perceptual location at a second resolution by adjusting weight factors for the second transducer and a third transducer, the second resolution differing from the first resolution,
wherein the first perceptual location differs from both the start position and the end position, and first and second resolutions are dependent on spacing between adjacent transducers.
17. A method for localized sound reproduction for immersive audio, the method comprising:
receiving an audio signal containing a first audio object;
accessing metadata associated with the first audio object to determine a first perceptual location and a second perceptual location;
presenting the first audio object with at least a first transducer and a second transducer, the presenting using weight factors to place the first audio object at the first perceptual location at a first resolution; and
moving presentation of the first audio object to the second perceptual location at a second resolution by adjusting weight factors for the second transducer and a third transducer, the second resolution differing from the first resolution,
wherein first and second resolutions are dependent on spacing between adjacent transducers.
18. The method of claim 17 wherein the first perceptual location corresponds to a 3D visual cue.