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  /external/webrtc/webrtc/common_audio/signal_processing/
levinson_durbin.c 29 int16_t A_hi[SPL_LEVINSON_MAXORDER + 1], A_low[SPL_LEVINSON_MAXORDER + 1];
74 A_hi[1] = (int16_t)(temp1W32 >> 16);
75 A_low[1] = (int16_t)((temp1W32 - ((int32_t)A_hi[1] << 16)) >> 1);
115 temp1W32 += (R_hi[j] * A_hi[i - j] << 1) +
117 (R_low[j] * A_hi[i - j] >> 15)) << 1);
174 temp1W32 = WEBRTC_SPL_LSHIFT_W32((int32_t)A_hi[j],16)
178 temp1W32 += (K_hi * A_hi[i - j] + (K_hi * A_low[i - j] >> 15) +
179 (K_low * A_hi[i - j] >> 15)) << 1;
225 A_hi[j] = A_upd_hi[j];
240 temp1W32 = WEBRTC_SPL_LSHIFT_W32((int32_t)A_hi[i], 16
    [all...]
  /external/webrtc/webrtc/modules/audio_coding/codecs/isac/fix/source/
lpc_masking_model.c 75 int16_t A_hi[LEVINSON_MAX_ORDER+1], A_low[LEVINSON_MAX_ORDER+1];
117 A_hi[1] = (int16_t)(temp1W32 >> 16);
118 A_low[1] = (int16_t)((temp1W32 - ((int32_t)A_hi[1] << 16)) >> 1);
160 temp1W32 += ((R_hi[j] * A_hi[i - j]) << 1) +
162 ((R_low[j] * A_hi[i - j]) >> 15)) << 1);
214 temp1W32 = (A_hi[j] << 16) + (A_low[j] << 1); // temp1W32 = A[j] in Q27
216 temp1W32 += (K_hi * A_hi[i - j] + ((K_hi * A_low[i - j]) >> 15) +
217 ((K_low * A_hi[i - j]) >> 15)) << 1; // temp1W32 += K*A[i-j] in Q27.
260 A_hi[j] =A_upd_hi[j];
274 temp1W32 = (A_hi[i] << 16) + (A_low[i] << 1)
    [all...]

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