AUDIO APPARATUS AND AUDIO PROVIDING METHOD THEREOF

摘要

An audio apparatus and an audio providing method thereof are provided. The audio providing method includes receiving an audio signal including a plurality of channels, applying an audio signal having a channel, from among the plurality of channels, giving a sense of elevation to a filter to generate a plurality of virtual audio signals to be respectively output to a plurality of speakers, applying a combination gain value and a delay value to the plurality of virtual audio signals so that the plurality of virtual audio signals respectively output through the plurality of speakers form a sound field having a plane wave, and respectively outputting the plurality of virtual audio signals, to which the combination gain value and the delay value are applied, through the plurality of speakers. The filter processes the audio signal to have a sense of elevation.

主权项

1. A method of rendering an audio signal, the method comprising:
receiving multichannel signals; receiving input channel layout information according to the multichannel signals; identifying at least one height input channel signal among the multichannel signals based on the input channel layout information; obtaining filter coefficients for the at least one height input channel signal; obtaining panning gains for the at least one height input channel signal; and performing elevation rendering on the at least one height input channel signal, based on the filter coefficients and the panning gains, to provide elevated sound images by a plurality of output channel signals, wherein the filter coefficients are based on the head related transfer function, wherein the panning gains are obtained based on a frequency range and position information of the at least one height input channel signal, and wherein the position information comprises an azimuth and an elevation angle of the at least one height input channel signal.