Patent ID: 9002033
Filing Date: 2015-04-07
Classification: H03G

Abstract:
1. A method of amplitude compressing a plurality of digital signals to mitigate clipping and outputting to a device for use by that device with reduced distortion, the method comprising: identifying a frame of each of the plurality of digital signals, each frame comprising a first set of samples followed by a second set of samples; determining a first peak value among all of the first sets of samples; determining a second peak value among all of the second sets of samples; computing an array of scale factors based at least in part on the first peak value and the second peak value, the size of the array being equivalent to the number of samples in the first set of samples; scaling each of the plurality of digital signals to reduce later distortion of a scaled plurality of signals by applying the array of scale factors to corresponding samples in each of the first sets of samples; and outputting the scaled plurality of signals to the device.