摘要 |
When a multi-channel signal, such as from a 22.2 channel, is rendered to a 5.1 channel, three-dimensional acoustic signals can be played back by means of a two-dimensional output channel, but when the elevation of the input channel differs from the standard elevation and an elevation rendering parameter corresponding to the standard elevation is used, an audio image distortion occurs. The present invention resolves the described issue in the existing technology, and a method for rendering acoustic signals according to an embodiment of the present invention, which is to reduce the audio image distortion even when the elevation of the input channel differs from the standard elevation, comprises the steps of: receiving a multi-channel signal comprising a plurality of input channels to be converted into a plurality of output channels; acquiring an elevation rendering parameter for a height input channel having a standard elevation angle so that each output channel provides an audio image having a sense of elevation; and renewing the elevation rendering parameter for a height input channel having a set elevation angle other than the standard elevation angle. |