Searched refs:noise_floor (Results 1 – 4 of 4) sorted by relevance
| /external/libopus/src/ |
| D | analysis.c | 235 float noise_floor; in tonality_analysis() local
416 noise_floor = 5.7e-4f/(1<<(IMAX(0,lsb_depth-8))); in tonality_analysis()
418 noise_floor *= 1<<(15+SIG_SHIFT); in tonality_analysis()
420 noise_floor *= noise_floor; in tonality_analysis()
445 if (E>.1*bandwidth_mask && E*1e9f > maxE && E > noise_floor*(band_end-band_start)) in tonality_analysis()
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| /external/syslinux/gpxe/src/drivers/net/ath5k/ |
| D | ath5k_phy.c | 1136 s32 noise_floor; in ath5k_hw_noise_floor_calibration() local
1155 noise_floor = ath5k_hw_reg_read(ah, AR5K_PHY_NF); in ath5k_hw_noise_floor_calibration()
1156 noise_floor = AR5K_PHY_NF_RVAL(noise_floor); in ath5k_hw_noise_floor_calibration()
1157 if (noise_floor & AR5K_PHY_NF_ACTIVE) { in ath5k_hw_noise_floor_calibration()
1158 noise_floor = AR5K_PHY_NF_AVAL(noise_floor); in ath5k_hw_noise_floor_calibration()
1160 if (noise_floor <= AR5K_TUNE_NOISE_FLOOR) in ath5k_hw_noise_floor_calibration()
1165 DBG2("ath5k: noise floor %d\n", noise_floor); in ath5k_hw_noise_floor_calibration()
1167 if (noise_floor > AR5K_TUNE_NOISE_FLOOR) { in ath5k_hw_noise_floor_calibration()
1172 ah->ah_noise_floor = noise_floor; in ath5k_hw_noise_floor_calibration()
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| /external/speex/libspeex/ |
| D | preprocess.c | 384 float noise_floor; in compute_gain_floor() local
386 noise_floor = exp(.2302585f*noise_suppress); in compute_gain_floor()
391 …gain_floor[i] = FRAC_SCALING*sqrt(noise_floor*PSHR32(noise[i],NOISE_SHIFT) + echo_floor*echo[i])/s… in compute_gain_floor()
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| /external/libopus/celt/ |
| D | celt_encoder.c | 939 VARDECL(opus_val16, noise_floor); in dynalloc_analysis()
942 ALLOC(noise_floor, C*nbEBands, opus_val16); in dynalloc_analysis()
950 noise_floor[i] = MULT16_16(QCONST16(0.0625f, DB_SHIFT),logN[i]) in dynalloc_analysis()
957 maxDepth = MAX16(maxDepth, bandLogE[c*nbEBands+i]-noise_floor[i]); in dynalloc_analysis()
996 f[i] = MAX16(f[i], noise_floor[i]); in dynalloc_analysis()
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