Audio processing method and audio processing apparatus

摘要

An audio processing method and an audio processing apparatus are described. A mono-channel audio signal is transformed into a plurality of first subband signals. Proportions of a desired component and a noise component are estimated in each of the subband signals. Second subband signals corresponding respectively to a plurality of channels are generated from each of the first subband signals. Each of the second subband signals comprises a first component and a second component obtained by assigning a spatial hearing property and a perceptual hearing property different from the spatial hearing property to the desired component and the noise component in the corresponding first subband signal respectively, based on a multi-dimensional auditory presentation method. The second subband signals are transformed into signals for rendering with the multi-dimensional auditory presentation method. By assigning different hearing properties to desired sound and noise, the intelligibility of the audio signal can be improved.

主权项

1. An audio processing method comprising:
transforming a mono-channel audio signal into a plurality of first subband signals; estimating proportions of a desired component and a noise component in each of the subband signals; generating second subband signals corresponding respectively to a plurality of channels from each of the first subband signals, wherein each of the second subband signals comprises a first component and a second component obtained by assigning a spatial hearing property and a perceptual hearing property different from the spatial hearing property to the desired component and the noise component in the corresponding first subband signal respectively, based on a multi-dimensional auditory presentation method; and transforming the second subband signals into signals for rendering with the multi-dimensional auditory presentation method.