Virtual Stereo Synthesis Method and Apparatus

A virtual stereo synthesis apparatus, comprising:

• a memory;
• and
• a processor coupled to the memory,
• wherein the processor is configured to:
• acquire at least one sound input signal on a first side and at least one sound input signal on a second side;
• separately perform ratio processing on a preset head related transfer function (HRTF) left-ear component and a preset HRTF right-ear component of each sound input signal on the second side, to obtain a filtering function of each sound input signal on the second side;
• separately perform convolution filtering on each sound input signal on the second side and the filtering function of the sound input signal on the second side, to obtain a filtered signal on the second side;
• and
• synthesize all of the sound input signals on the first side and all of the filtered signals on the second side into a virtual stereo signal.

A non-transitory computer readable storage medium configured to store a computer program code, wherein when executed by a computer processor, causes the computer processor to perform the following operations:

• acquire at least one sound input signal on a first side and at least one sound input signal on a second side;
• separately perform ratio processing on a preset head related transfer function (HRTF) left-ear component and a preset HRTF right-ear component of each sound input signal on the second side, to obtain a filtering function of each sound input signal on the second side;
• separately perform convolution filtering on each sound input signal on the second side and the filtering function of the sound input signal on the second side, to obtain a filtered signal on the second side;
• and
• synthesize all of the sound input signals on the first side and all of the filtered signals on the second side into a virtual stereo signal.