Sound field reproduction device, sound field reproduction method, and program

A sound field reproduction device comprising:

• at least one memory storing instructions;
• and
• at least one processor, programmed via the instructions to:
• receive a first signal obtained by a first microphone array, the first microphone array positioned ahead of a main sound source, wherein the first signal comprises a plurality of components including a main sound source component generated by the main sound source;
• receive a second signal obtained by a sound pickup unit from the main sound source;
• identify a feature of sound generated by the main sound source using the second signal obtained by the sound pickup unit;
• identify the main sound source component of the first signal obtained by the first microphone array using the identified feature of the sound generated by the main sound source;
• and
• receive a third signal from a second microphone array, the second microphone array positioned ahead of an auxiliary sound source, wherein the third signal comprises a plurality of components including a main sound source component generated by the main sound source;
• identify the main sound source component of the third signal using the identified feature of the sound generated by the main sound source;
• emphasize the identified main sound source component of the first signal obtained by the first microphone array;
• and
• reduce the main sound source component of the third signal obtained by the second microphone array.

A sound field reproduction method comprising:

• receiving a first signal obtained by a first microphone array, the first microphone array positioned ahead of a main sound source, wherein the first signal comprises a plurality of components including a main sound source component generated by the main sound source;
• receiving a second signal obtained by a sound pickup unit from the main sound source;
• identifying a feature of sound generated by the main sound source using the second signal obtained by the sound pickup unit, the feature of sound comprising a representation of a pattern of the sound generated by the main sound source;
• identifying the main sound source component of the first signal obtained by the first microphone array at least in part by separating, using the identified feature of the sound generated by the main sound source, the main sound source component of the first signal from one or more of the plurality of components of the first signal different from the main sound source component, the separating comprising extracting the main sound source component from the first signal based on the representation of the pattern of the sound generated by the main sound source;
• and
• emphasizing the identified main sound source component of the first signal obtained by the first microphone array.

At least one non-transitory computer-readable medium storing instructions, which when executed by at least one computer, cause the at least one computer to perform a method comprising:

• receiving a first signal obtained by a first microphone array, the first microphone array positioned ahead of a main sound source, wherein the first signal comprises a plurality of components including a main sound source component generated by the main sound source;
• receiving a second signal obtained by a sound pickup unit from the main sound source;
• identifying a feature of sound generated by the main sound source using the second signal obtained by the sound pickup unit, the feature of sound comprising a representation of a pattern of the sound generated by the main sound source;
• identifying the main sound source component of the first signal obtained by the first microphone array at least in part by separating, using the identified feature of the sound generated by the main sound source, the main sound source component of the first signal from one or more of the plurality of components of the first signal different from the main sound source component, the separating comprising extracting the main sound source component from the first signal based on the representation of the pattern of the sound generated by the main sound source;
• and
• emphasizing the identified main sound source component of the first signal obtained by the first microphone array.