Back to results
US 10,652,683 B2Granted
Method and apparatus for reproducing three-dimensional audio
AssigneeSamsung Electronics Co., Ltd.
InventorsSang-bae Chon, Sun-min Kim
Life of this patent
Estimating the term…
Abstract
A three-dimensional (3D) audio reproducing method and apparatus is provided. The 3D audio reproducing method may include receiving a multichannel signal comprising a plurality of input channels; and performing downmixing according to a frequency range of the multichannel signal in order to format-convert the plurality of input channels into a plurality of output channels having elevation.
Claims2
A method of rendering an audio signal, the method comprising:
- receiving a plurality of input channel signals including a height input channel signal;
- generating a parameter for phase-aligning based on the plurality of input channel signals;
- modifying a downmix matrix, based on the parameter for phase-aligning, to phase-align a first frequency range of the plurality of input channel signals;
- and
- downmixing the plurality of input channel signals to a plurality of output channel signals based on the modified downmix matrix,
- wherein the first frequency range includes below 2.8 kHz and above 10 kHz,
- wherein the height input channel signal is identified based on elevation information, and
- wherein the modified downmix matrix includes two types comprising a first downmix matrix for a general scene and a second downmix matrix for a highly decorrelated wideband scene, and the downmixing is performed by one of the first downmix matrix or the second downmix matrix selected according to a received flag.
5 more elements
An apparatus for rendering an audio signal, the apparatus comprising:
- a processor;
- and
- a memory storing instructions executable by the processor,
- wherein the processor is configured to:
- receive a plurality of input channel signals including a height input channel signal;
- generate a parameter for phase-aligning based on the plurality of input channel signals;
- modify a downmix matrix, based on the parameter for phase-aligning, to phase-align a first frequency range of the plurality of input channel signals;
- and
- downmix the plurality of input channel signals to a plurality of output channel signals based on the modified downmix matrix,
- wherein the first frequency range includes below 2.8 kHz and above 10 kHz,
- wherein the height input channel signal is identified based on elevation information, and
- wherein the modified downmix matrix includes two types comprising a first downmix matrix for a general scene and a second downmix matrix for a highly decorrelated wideband scene, and the downmixing is performed by one of the first downmix matrix or the second downmix matrix selected according to a received flag.
9 more elements
Dependencies are inferred from the claim text.