| 摘要 |
With Ambisonics representation, the reproduction of the sound field can be adapted to any loudspeaker position arrangement. While facilitating a representation of spatial audio independent from loudspeaker set-ups, the combination with video playback on differently-sized screens may become distracting because the spatial sound playback is not adapted accordingly. The invention adapts the playback of spatial sound field-oriented audio to its linked visible objects, by applying space warping processing. The reference size (or the viewing angle from a reference listening position) of the screen used in the content production is encoded and transmitted as meta-data, or the decoder knows the size of the target screen with respect to a reference screen size. The decoder warps the sound field such that all sound objects in the direction of the screen are compressed or stretched according to the ratio of the sizes of the target and reference screens. |
