Searched refs:noise_floor (Results 1 – 4 of 4) sorted by relevance
| /external/libopus/src/ |
| D | analysis.c | 454 float noise_floor; in tonality_analysis() local
741 noise_floor = 5.7e-4f/(1<<(IMAX(0,lsb_depth-8))); in tonality_analysis()
742 noise_floor *= noise_floor; in tonality_analysis()
775 …if (E*1e9f > maxE && (Em > 3*noise_floor*(band_end-band_start) || E > noise_floor*(band_end-band_s… in tonality_analysis()
799 if (Em > 3*noise_ratio*noise_floor*160 || E > noise_ratio*noise_floor*160) in tonality_analysis()
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| /external/libxaac/decoder/ |
| D | ixheaacd_esbr_envcal.c | 109 FLOAT32 *noise_floor = frame_data->flt_noise_floor; in ixheaacd_sbr_env_calc() local
230 noise_floor[next * num_nf_bands + o]; in ixheaacd_sbr_env_calc()
619 tmp = noise_floor[next * num_nf_bands + o] / in ixheaacd_sbr_env_calc()
620 (1 + noise_floor[next * num_nf_bands + o]); in ixheaacd_sbr_env_calc()
627 noise_floor[next * num_nf_bands + o]) in ixheaacd_sbr_env_calc()
636 (noise_floor[next * num_nf_bands + o]))); in ixheaacd_sbr_env_calc()
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| /external/libopus/celt/ |
| D | celt_encoder.c | 980 VARDECL(opus_val16, noise_floor); in dynalloc_analysis()
983 ALLOC(noise_floor, C*nbEBands, opus_val16); in dynalloc_analysis()
991 noise_floor[i] = MULT16_16(QCONST16(0.0625f, DB_SHIFT),logN[i]) in dynalloc_analysis()
998 maxDepth = MAX16(maxDepth, bandLogE[c*nbEBands+i]-noise_floor[i]); in dynalloc_analysis()
1008 mask[i] = bandLogE[i]-noise_floor[i]; in dynalloc_analysis()
1012 mask[i] = MAX16(mask[i], bandLogE[nbEBands+i]-noise_floor[i]); in dynalloc_analysis()
1073 f[i] = MAX16(f[i], noise_floor[i]); in dynalloc_analysis()
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| /external/speex/libspeexdsp/ |
| D | preprocess.c | 380 float noise_floor; in compute_gain_floor() local
382 noise_floor = exp(.2302585f*noise_suppress); in compute_gain_floor()
387 …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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