Audio processing method, audio processing system, and computer-readable medium

An audio processing system comprising:

• one or more memories storing instructions;
• and
• one or more processors communicatively connected to the one or more memories and that implement the instructions to:
• obtain a plurality of observed envelopes of picked-up sound signals including a first observed envelope representing a contour of a first sound signal picked up in a vicinity of a first sound source and a second observed envelope representing a contour of a second sound signal picked up in a vicinity of a second sound source, wherein:
• the first sound signal includes a first target sound from the first sound source and a second spill sound from the second sound source, and
• the second sound signal includes a second target sound from the second sound source and a first spill sound from the first sound source;
• generate, based on the plurality of observed envelopes, a plurality of output envelopes using a mix matrix including a mix proportion of the second spill sound in the first sound signal and a mix proportion of the first spill sound in the second sound signal, wherein the generated plurality of output envelopes include:
• a first output envelope representing a contour of the first target sound in the first observed envelope;
• and
• a second output envelope representing a contour of the second target sound in the second observed envelope;
• and,
• displaying on a display device an analysis image representing a level of the second spill sound in the first observed envelope based on the mix matrix and the plurality of output envelopes.

A computer-readable medium storing a program executable by a computer to execute an audio processing method comprising:

• obtaining a plurality of observed envelopes of picked-up sound signals including a first observed envelope representing a contour of a first sound signal picked up in a vicinity of a first sound source and a second observed envelope representing a contour of a second sound signal picked up in a vicinity of a second sound source, wherein:
• the first sound signal includes a first target sound from the first sound source and a second spill sound from the second sound source, and
• the second sound signal includes a second target sound from the second sound source and a first spill sound from the first sound source;
• generating, based on the plurality of observed envelopes, a plurality of output envelopes using a mix matrix including a mix proportion of the second spill sound in the first sound signal and a mix proportion of the first spill sound in the second sound signal, wherein the generated plurality of output envelopes include:
• a first output envelope representing a contour of the first target sound in the first observed envelope;
• and
• a second output envelope representing a contour of the second target sound in the second observed envelope;
• and
• displaying on a display device an analysis image representing a level of the second spill sound in the first observed envelope based on the mix matrix and the plurality of output envelopes.