CPC H04S 7/304 (2013.01) [G10L 25/21 (2013.01); H04R 1/08 (2013.01); H04R 1/1041 (2013.01); H04R 5/033 (2013.01); H04R 29/001 (2013.01); H04R 1/1016 (2013.01); H04S 2400/11 (2013.01); H04S 2400/15 (2013.01)] | 20 Claims |
1. A wireless audio system for recording an audio, comprising:
a first wireless headphone, a second wireless headphone, and a user equipment, wherein:
the first wireless headphone comprises:
a first audio collection module configured to collect a first audio signal;
a first timing module configured to generate a first counting signal by counting cycles according to a first local clock of the first wireless headphone; and
a first processing module, upon receiving a trigger from the first audio collection module, configured to:
generate a first synchronizing signal based on recording a value of the first counting signal from the first timing module; and
retrieve a portion of the first audio signal by direct memory access (DMA); the second wireless headphone configured to:
receive a wireless signal from the first wireless headphone, indicating the first local clock; and
synchronize a second local clock of the second wireless headphone with the first local clock based on the wireless signal, the second wireless headphone comprising:
a second audio collection module configured to collect a second audio signal;
a second timing module configured to generate a second counting signal by counting cycles according to the second local clock of the second wireless headphone; and
a second processing module, upon receiving a trigger from the second audio collection module, configured to:
generate a second synchronizing signal based on recording a value of the second counting signal from the second timing module; and
retrieve a portion of the second audio signal by DMA; and
the user equipment is configured to generate a 3D audio representation of the audio based on the first and the second audio signals and the first and the second synchronizing signals.
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