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    Searched refs:excitation (Results 1 - 3 of 3) sorted by null

  /frameworks/av/media/libstagefright/codecs/amrnb/dec/src/
ex_ctrl.h 49 Purpose : Excitation Control module in background noise
108 Word16 Ex_ctrl(Word16 excitation[], /*i/o: Current subframe excitation */
ex_ctrl.cpp 88 excitation = pointer to current subframe excitation of type Word16
151 Word16 Ex_ctrl(Word16 excitation[], /*i/o: Current subframe excitation */
209 /* scale the excitation by scaleFactor */
212 t0 = L_mult(scaleFactor, excitation[i], pOverflow);
214 excitation[i] = extract_l(t0);
  /external/webrtc/webrtc/modules/audio_coding/codecs/cng/
webrtc_cng.c 481 int16_t excitation[WEBRTC_CNG_MAX_OUTSIZE_ORDER]; local
551 /* Calculate sqrt(En * target_energy / excitation energy) */
558 /* Generate excitation. */
559 /* Excitation energy per sample is 2.^24 - Q13 N(0,1). */
561 excitation[i] = WebRtcSpl_RandN(&inst->dec_seed) >> 1;
565 WebRtcSpl_ScaleVector(excitation, excitation, inst->dec_used_scale_factor,
569 * |excitation| - Speech samples.
572 WebRtcSpl_FilterAR(lpPoly, WEBRTC_CNG_MAX_LPC_ORDER + 1, excitation,

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