Patent Document ID: 20150120292
Application ID: 14222309
Patent Status: 0

Claim One:
1. A method for identifying speech component and music component of a sound signal, the method comprising the steps of: a) receiving a number of samples of the sound signal from one or more communication devices; b) passing each sample through a high pass filter (HPF) to obtain a corresponding output signal; c) computing a power measure for each sample by using output signals of the HPF; d) averaging the power measure over a period of time to obtain a power level; e) identifying, via a Goertzel calculation, different frequency components of the signals being passed through the HPF, computes DFT values at these identified frequency components, takes the absolute value of the DFT values, and sores the DFT values in a first array; f) calculating histograms for each of the identified frequency components and histogram bins ft with a value higher than a specified threshold; g) summing up the histogram bins with the value higher than the specified threshold and storing the results in a second array, wherein the second array is a Cases array; h) finding a difference between two adjacent array elements to determine corresponding difference signals; i) calculating a standard deviation of the difference signals; j) selecting a bottom threshold for the power level; k) determining the identified frequency component as music signal if the deviation is above the bottom threshold; l) determining the identified frequency component as speech or pause signal if the deviation is below the bottom threshold.