Adaptive noise reduction using level cues

A system for suppressing noise, the system comprising:

• a frequency analysis module stored in memory and executed by a processor to receive three acoustic signals;
• a level difference module stored in memory and executed by a processor to determine level difference information from two pairs of acoustic signals, one of the pairs of the acoustic signals comprising a first and second acoustic signal of the three acoustic signals, another of the pairs of acoustic signals comprising a third acoustic signal of the three acoustic signals and one of the first and second acoustic signals, wherein a primary acoustic signal comprises one of the three acoustic signals;
• and
• a noise cancellation module stored in memory and executed by a processor to perform noise cancellation on the primary acoustic signal by subtracting a noise component from the primary acoustic signal, the noise component based at least in part on the level difference information.

A non-transitory computer readable storage medium having embodied thereon a program, the program being executable by a processor to perform a method for suppressing noise, the method comprising:

• receiving three acoustic signals;
• determining level difference information from two pairs of the acoustic signals, one of the pairs comprising a first and second acoustic signal of the three acoustic signals, another of the pairs comprising a third acoustic signal of the acoustic signals and one of the first and second acoustic signals, wherein a primary acoustic signal comprises one of the three acoustic signals;
• and
• performing noise cancellation on the primary acoustic signal by subtracting a noise component from the primary acoustic signal, the noise component based at least in part on the level difference information.