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Searched refs:noise_floor (Results 1 – 5 of 5) sorted by relevance

/external/syslinux/gpxe/src/drivers/net/ath5k/
Dath5k_phy.c1136 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()
/external/libopus/src/
Danalysis.c345 float noise_floor; in tonality_analysis() local
633 noise_floor = 5.7e-4f/(1<<(IMAX(0,lsb_depth-8))); in tonality_analysis()
634 noise_floor *= noise_floor; in tonality_analysis()
661 if (E>.1*bandwidth_mask && E*1e9f > maxE && E > noise_floor*(band_end-band_start)) in tonality_analysis()
679 if (E>ratio*bandwidth_mask && E*1e9f > maxE && E > noise_floor*160) in tonality_analysis()
/external/libxaac/decoder/
Dixheaacd_esbr_envcal.c108 FLOAT32 *noise_floor = frame_data->flt_noise_floor; in ixheaacd_sbr_env_calc() local
226 noise_floor[next * num_nf_bands + o]; in ixheaacd_sbr_env_calc()
612 tmp = noise_floor[next * num_nf_bands + o] / in ixheaacd_sbr_env_calc()
613 (1 + noise_floor[next * num_nf_bands + o]); in ixheaacd_sbr_env_calc()
620 noise_floor[next * num_nf_bands + o]) in ixheaacd_sbr_env_calc()
629 (noise_floor[next * num_nf_bands + o]))); in ixheaacd_sbr_env_calc()
/external/speex/libspeex/
Dpreprocess.c384 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()
/external/libopus/celt/
Dcelt_encoder.c973 VARDECL(opus_val16, noise_floor); in dynalloc_analysis()
976 ALLOC(noise_floor, C*nbEBands, opus_val16); in dynalloc_analysis()
984 noise_floor[i] = MULT16_16(QCONST16(0.0625f, DB_SHIFT),logN[i]) in dynalloc_analysis()
991 maxDepth = MAX16(maxDepth, bandLogE[c*nbEBands+i]-noise_floor[i]); in dynalloc_analysis()
1030 f[i] = MAX16(f[i], noise_floor[i]); in dynalloc_analysis()