Multi-channel audio signal converting device using time-varying digital filter, electronic system including the same, and method of converting multi-channel audio signal

摘要

A multi-channel audio signal converting device using a time-varying digital filter, an electronic system including the same, and a method of converting an audio signal using the time-varying digital filter are provided. The multi-channel audio signal converting device includes a first signal channel and a second signal channel configured to perform analog-to-digital conversion or digital-to-analog conversion using a first clock signal; and a first time-varying filter configured to synchronize a digital audio signal synchronized with a second clock signal different from the first clock signal with the first clock signal and to input the digital audio signal to the second signal channel when digital-to-analog conversion is performed or to synchronize an output signal of the second signal channel with the second clock signal when analog-to-digital conversion is performed.

主权项

1. A method of converting an audio signal in a multi-channel audio system, the method comprising:
performing at least one of analog-to-digital conversion and digital-to-analog conversion of a first audio signal using a first clock signal in a first signal channel; synchronizing a second, digital audio signal synchronized with a second clock signal different from the first clock signal with the first clock signal by resampling the digital audio signal in synchronization with the first clock signal; outputting the resampled digital audio signal to a second signal channel; and performing digital-to-analog conversion of the resampled digital audio signal using the first clock signal in the second signal channel.