Surround Sound Recording for Mobile Devices

A method of surround sound recording in a mobile device, comprising:

• obtaining a first audio signal of a stereo signal with a first microphone;
• obtaining a second audio signal of the stereo signal with a second microphone;
• obtaining a third audio signal with a third microphone;
• obtaining a steering signal based on either the third audio signal and the first audio signal or the second audio signal or based on a fourth audio signal obtained by a fourth microphone;
• and
• separating the stereo signal into a front stereo signal and a back stereo signal based on the steering signal.

A mobile device for recoding surround sound, comprising:

• a non-transitory memory comprising instructions;
• and
• one or more processors in communication with the memory, wherein the one or more processors execute the instructions to perform, a method comprising the following operations:
• obtaining a first audio signal of a stereo signal with a first microphone;
• obtaining a second audio signal of the stereo signal with a second microphone;
• obtaining a third audio signal with a third microphone;
• obtaining a fourth audio signal with a fourth microphone;
• obtaining a steering signal based on the third audio signal and one of the first audio signal, the second audio signal, or the fourth audio signal;
• and
• separating the stereo signal into a front stereo signal and a back stereo signal based on the steering signal.