AUDIO SIGNAL PROCESSING METHOD AND DEVICE

Disclosed is an audio signal processing device for rendering an input audio signal. The audio signal processing device includes a receiving unit configured to receive the input audio signal, a processor configured to generate an output audio signal by binaural rendering the input audio signal, and an output unit configured to output the output audio signal generated by the processor. The processor obtains a first transfer function based on a position of a virtual sound source corresponding to the input audio signal with respect to a listener, generates at least one flat response having a constant magnitude in a frequency domain, generates a second transfer function based on the first transfer function and the at least one flat response, and generates the output audio signal by binaural rendering the input audio signal based on the generated second transfer function.