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    Searched defs:noise_floor (Results 1 - 3 of 3) sorted by null

  /external/libopus/src/
analysis.c 235 float noise_floor; local
416 noise_floor = 5.7e-4f/(1<<(IMAX(0,lsb_depth-8)));
418 noise_floor *= 1<<(15+SIG_SHIFT);
420 noise_floor *= noise_floor;
445 if (E>.1*bandwidth_mask && E*1e9f > maxE && E > noise_floor*(band_end-band_start))
  /external/speex/libspeex/
preprocess.c 331 /* gain_floor = sqrt [ (noise*noise_floor + echo*echo_floor) / (noise+echo) ] */
341 /* gain_floor = sqrt [ (noise*noise_floor + echo*echo_floor) / (noise+echo) ] */
384 float noise_floor; local
386 noise_floor = exp(.2302585f*noise_suppress);
391 gain_floor[i] = FRAC_SCALING*sqrt(noise_floor*PSHR32(noise[i],NOISE_SHIFT) + echo_floor*echo[i])/sqrt(1+PSHR32(noise[i],NOISE_SHIFT) + echo[i]);
    [all...]
  /external/syslinux/gpxe/src/drivers/net/ath5k/
ath5k_phy.c 1136 s32 noise_floor; local
1155 noise_floor = ath5k_hw_reg_read(ah, AR5K_PHY_NF);
1156 noise_floor = AR5K_PHY_NF_RVAL(noise_floor);
1157 if (noise_floor & AR5K_PHY_NF_ACTIVE) {
1158 noise_floor = AR5K_PHY_NF_AVAL(noise_floor);
1160 if (noise_floor <= AR5K_TUNE_NOISE_FLOOR)
1165 DBG2("ath5k: noise floor %d\n", noise_floor);
1167 if (noise_floor > AR5K_TUNE_NOISE_FLOOR)
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