Patent ID: 8958897
Filing Date: 2015-02-17
Classification: G10L,H04M

Abstract:
1. A method of synchronizing a first audio sampling clock to a second audio sampling clock, comprising: synchronizing a slave, reference clock controlling the operation of a first transceiver on a wireless microphone comprising a wireless, digital, audio conferencing system to a master, reference clock controlling the operation of a second transceiver on a base station comprising the audio conferencing system, the wireless microphone and the base station in communication over the wireless medium; deriving from the master, reference clock a rate at which the first audio sampling clock operates, the first audio sampling clock controlling the capture time of audio information comprising a far end audio signal received by the base station; deriving from the slave, reference clock a rate at which the second sampling clock operates, the second sampling clock controlling the capture time of audio information comprising a local acoustic signal received by the wireless microphone, and the derived rates at which the first and second sampling clocks operate are the same; and using the first audio sampling clock to control the capture time of a first sample of audio information from the audio signal received by the base station from the far end audio source and using the second audio sampling clock to control the capture time of a second sample of audio information from the local acoustic signal received by the wireless microphone.