Audio processing system and audio processing device

An audio processing system comprising:

• a first microphone configured to acquire a first audio signal including a first audio component and output a first signal based on the first audio signal;
• one or more microphones, each of the one or more microphones being configured to acquire an audio signal including an audio component different from the first audio component and output a microphone signal based on the audio signal;
• one or more adaptive filters configured to respectively receive the microphone signals from the one or more microphones and output passing signals based on the microphone signals;
• and
• a processor configured to:
• determine whether each of the microphone signals includes uncorrelated noise that is noise having no correlation between the audio signals;
• control one or more filter coefficients of the one or more adaptive filters;
• and
• subtract a subtraction signal based on the passing signals from the first signal, wherein
• the one or more microphones include a second microphone configured to acquire a second audio signal including a second audio component different from the first audio component and output a second signal based on the second audio signal, and
• when determining that the second signal includes the uncorrelated noise, the processor is configured to set a level of the second signal input to the corresponding adaptive filter to zero.