DETERMINING PITCH CYCLE ENERGY AND SCALING AN EXCITATION SIGNAL
摘要
<p>An electronic device for determining a set of pitch cycle energy parameters is described. The electronic device includes a processor and executable instructions stored in memory. The electronic device obtains a frame, a set of filter coefficients and a residual signal based on the frame and the set of filter coefficients. The electronic device determines a set of peak locations based on the residual signal and segments the residual signal such that each segment includes one peak. The electronic device determines a first set of pitch cycle energy parameters based on a frame region between two consecutive peak locations and maps regions between peaks in the residual signal to regions between peaks in a synthesized excitation signal to produce a mapping. The electronic device determines a second set of pitch cycle energy parameters based on the first set of pitch cycle energy parameters and the mapping.</p>
申请公布号
WO2012036990(A1)
申请公布日期
2012.03.22
申请号
WO2011US51051
申请日期
2011.09.09
申请人
QUALCOMM INCORPORATED;KRISHNAN, VENKATESH;VILLETTE, STEPHANE PIERRE