Searched defs:noise (Results 1 - 25 of 37) sorted by relevance

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/external/libopus/silk/fixed/
H A Dregularize_correlations_FIX.c34 /* Add noise to matrix diagonal */
38 opus_int32 noise, /* I Noise to add */
44 matrix_ptr( &XX[ 0 ], i, i, D ) = silk_ADD32( matrix_ptr( &XX[ 0 ], i, i, D ), noise );
46 xx[ 0 ] += noise;
35 silk_regularize_correlations_FIX( opus_int32 *XX, opus_int32 *xx, opus_int32 noise, opus_int D ) argument
/external/libopus/silk/float/
H A Dregularize_correlations_FLP.c34 /* Add noise to matrix diagonal */
38 const silk_float noise, /* I Noise energy to add */
45 matrix_ptr( &XX[ 0 ], i, i, D ) += noise;
47 xx[ 0 ] += noise;
35 silk_regularize_correlations_FLP( silk_float *XX, silk_float *xx, const silk_float noise, const opus_int D ) argument
/external/libvpx/libvpx/test/
H A Dadd_noise_test.cc24 typedef void (*AddNoiseFunc)(uint8_t *start, const int8_t *noise,
46 int8_t noise[kNoiseSize]; local
47 const int clamp = vpx_setup_noise(4.4, noise, kNoiseSize);
54 GetParam()(s, noise, clamp, clamp, width, height, width));
57 // noise either vertically or horizontally.
73 GetParam()(s, noise, clamp, clamp, width, height, width));
84 GetParam()(s, noise, clamp, clamp, width, height, width));
98 int8_t noise[kNoiseSize]; local
99 const int clamp = vpx_setup_noise(4.4, noise, kNoiseSize);
111 GetParam()(s, noise, clam
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/external/libvpx/libvpx/vpx_dsp/
H A Dadd_noise.c21 void vpx_plane_add_noise_c(uint8_t *start, const int8_t *noise, int blackclamp, argument
27 const int8_t *ref = (const int8_t *)(noise + (rand() & 0xff)); // NOLINT
46 int vpx_setup_noise(double sigma, int8_t *noise, int size) { argument
67 noise[i] = char_dist[rand() & 0xff]; // NOLINT
/external/libvpx/libvpx/vpx_dsp/mips/
H A Dadd_noise_msa.c14 void vpx_plane_add_noise_msa(uint8_t *start_ptr, const int8_t *noise, argument
28 const int8_t *ref0_ptr = noise + (rand() & 0xff);
30 const int8_t *ref1_ptr = noise + (rand() & 0xff);
/external/python/cpython2/Mac/Demo/sound/
H A Dmorselib.py84 def noise(self, duration): member in class:BaseMorse
94 self.noise(self.dots)
98 self.noise(self.dahs)
160 def noise(self, duration): member in class:MacMorse
/external/valgrind/memcheck/tests/
H A Dleak-autofreepool.c60 static unsigned char *noise[3 * N]; variable
203 // blocks may be deleted from the list, making access to these noise-blocks
206 noise[NoiseCounter] = malloc(NOISE_SIZE);
207 assert(noise[NoiseCounter] != NULL);
208 memset(noise[NoiseCounter],(unsigned char) (NoiseCounter % 256), NOISE_SIZE);
221 assert(noise[i][j] == Check);
292 // Try to trigger an error in the bookkeeping by freeing the noise bits.
298 free(noise[i]);
/external/wpa_supplicant_8/wpa_supplicant/
H A Dbss.h92 int noise; member in struct:wpa_bss
101 /** Signal-to-noise ratio in dB */
/external/ImageMagick/MagickWand/
H A Dconvert.c185 "-blur geometry reduce image noise and reduce detail levels",
231 " reduce image noise and reduce detail levels",
239 "-kuwahara geometry edge preserving noise reduction filter",
261 "-noise geometry add or reduce noise in an image",
265 " add a noise pattern to the image with specific",
329 " removes noise from the image using a wavelet transform",
372 "-attenuate value lessen (or intensify) when adding noise to an image",
2253 if (LocaleCompare("noise",option+1) == 0)
2261 noise;
2259 noise; local
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H A Dmogrify.c2310 if (LocaleCompare("noise",option+1) == 0)
2324 noise;
2326 noise=(NoiseType) ParseCommandOption(MagickNoiseOptions,
2328 mogrify_image=AddNoiseImage(*image,noise,attenuate,exception);
3495 "-blur geometry reduce image noise and reduce detail levels",
3544 " reduce image noise and reduce detail levels",
3554 "-kuwahara geometry edge preserving noise reduction filter",
3577 "-noise geometry add or reduce noise in an image",
3581 " add a noise patter
2319 noise; local
5549 noise; local
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/external/webrtc/webrtc/modules/audio_processing/ns/
H A Dns_core.h26 float factor2ModelPars; // For spectral_flatness: used when noise is flatter
65 // Parameters for quantile noise estimation.
85 float noise[HALF_ANAL_BLOCKL]; // Noise spectrum from current frame. member in struct:NoiseSuppressionC_
92 float priorSpeechProb; // Prior speech/noise probability.
94 // Conservative noise spectrum estimate.
98 float whiteNoiseLevel; // Initial noise estimate.
100 float pinkNoiseNumerator; // Pink noise parameter: numerator.
101 float pinkNoiseExp; // Pink noise parameter: power of frequencies.
110 float speechProb[HALF_ANAL_BLOCKL]; // Final speech/noise prob: prior + LRT.
123 * This function initializes a noise suppressio
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H A Dns_core.c36 // For spectral_flatness: used when noise is flatter than speech.
114 // For quantile noise estimation.
137 self->priorSpeechProb = 0.5f; // Prior prob for speech/noise.
142 // Current noise-spectrum.
143 memset(self->noise, 0, sizeof(float) * HALF_ANAL_BLOCKL);
144 // Previous noise-spectrum.
146 // Conservative noise spectrum estimate.
196 // Counter for update of conservative noise spectrum.
216 // Estimate noise.
219 float* noise) {
217 NoiseEstimation(NoiseSuppressionC* self, float* magn, float* noise) argument
566 ComputeSnr(const NoiseSuppressionC* self, const float* magn, const float* noise, float* snrLocPrior, float* snrLocPost) argument
801 UpdateNoiseEstimate(NoiseSuppressionC* self, const float* magn, const float* snrLocPrior, const float* snrLocPost, float* noise) argument
1053 float magn[HALF_ANAL_BLOCKL], noise[HALF_ANAL_BLOCKL]; local
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H A Dnsx_core_neon.c58 // Update the noise estimation information.
136 uint32_t* noise,
343 // Sequentially update the noise during startup
349 noise[i] = (uint32_t)(inst->noiseEstQuantile[i]); // Q(qNoise)
443 // For the noise supress process, synthesis, read out fully processed segment,
134 WebRtcNsx_NoiseEstimationNeon(NoiseSuppressionFixedC* inst, uint16_t* magn, uint32_t* noise, int16_t* q_noise) argument
/external/ImageMagick/MagickCore/
H A Dgem.c1458 % GenerateDifferentialNoise() generates differentual noise.
1469 % o pixel: noise is relative to this pixel value.
1471 % o noise_type: the type of noise.
1473 % o attenuate: attenuate the noise.
1491 noise,
1500 noise=(double) (pixel+QuantumRange*SigmaUniform*(alpha-0.5));
1515 noise=(double) (pixel+sqrt((double) pixel)*SigmaGaussian*sigma+
1522 noise=0.0;
1525 noise=(double) QuantumRange;
1527 noise
1470 noise, local
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/external/aac/libFDK/include/
H A DFDK_tools_rom.h325 noise, enumerator in enum:__anon417
/external/webrtc/webrtc/modules/audio_processing/aec/
H A Daec_core_mips.c33 float noise, noiseAvg, tmp, tmpAvg; local
88 // Reject LF noise
99 "lwc1 %[noise], 4(%[noisePow]) \n\t"
103 "sqrt.s %[noise], %[noise] \n\t"
116 "mul.s %[tmp1f], %[tmp1f], %[noise] \n\t"
117 "mul.s %[tmp2f], %[tmp2f], %[noise] \n\t"
139 [noise] "=&f" (noise), [noise2] "=&f" (noise2),
271 // For H band comfort noise
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/external/wpa_supplicant_8/hostapd/src/drivers/
H A Ddriver_nl80211_scan.c28 s8 noise[MAX_NL80211_NOISE_FREQS]; member in struct:nl80211_noise_info
70 info->noise[info->count] =
902 res->noise = info->noise[i];
/external/wpa_supplicant_8/src/drivers/
H A Ddriver_nl80211_scan.c28 s8 noise[MAX_NL80211_NOISE_FREQS]; member in struct:nl80211_noise_info
70 info->noise[info->count] =
902 res->noise = info->noise[i];
/external/wpa_supplicant_8/wpa_supplicant/src/drivers/
H A Ddriver_nl80211_scan.c28 s8 noise[MAX_NL80211_NOISE_FREQS]; member in struct:nl80211_noise_info
70 info->noise[info->count] =
902 res->noise = info->noise[i];
/external/libxcam/xcore/base/
H A Dxcam_3a_result.h59 /* noise reduction */
154 double noise; member in struct:_XCam3aResultDemosaic
/external/skia/src/shaders/
H A DSkPerlinNoiseShader.cpp222 // Copy noise data
223 uint16_t noise[4][kBlockSize][2];
227 noise[channel][i][j] = fNoise[channel][i][j];
231 // Do permutations on noise data
235 fNoise[channel][i][j] = noise[channel][fLatticeSelector[i]][j];
244 // Compute gradients from permutated noise data
251 // Put the normalized gradient back into the noise data
315 * About the noise types : the difference between the first 2 is just minor tweaks to the
317 * noise is generated in the [1, -1] range, the output is brought back in the [0, 1] range by
319 * kFractalNoise_Type : noise * 0.
1384 const GrImprovedPerlinNoiseEffect& noise = processor.cast<GrImprovedPerlinNoiseEffect>(); local
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/external/skqp/src/shaders/
H A DSkPerlinNoiseShader.cpp217 // Copy noise data
218 uint16_t noise[4][kBlockSize][2];
222 noise[channel][i][j] = fNoise[channel][i][j];
226 // Do permutations on noise data
230 fNoise[channel][i][j] = noise[channel][fLatticeSelector[i]][j];
239 // Compute gradients from permutated noise data
246 // Put the normalized gradient back into the noise data
308 * About the noise types : the difference between the first 2 is just minor tweaks to the
310 * noise is generated in the [1, -1] range, the output is brought back in the [0, 1] range by
312 * kFractalNoise_Type : noise * 0.
1377 const GrImprovedPerlinNoiseEffect& noise = processor.cast<GrImprovedPerlinNoiseEffect>(); local
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/external/speex/libspeex/
H A Dpreprocess.c46 I. Cohen and B. Berdugo, "Speech enhancement for non-stationary noise environments".
50 approach to combined acoustic echo cancellation and noise reduction". IEEE
211 spx_word32_t *noise; /**< Noise estimate */ member in struct:SpeexPreprocessState_
221 int *update_prob; /**< Probability of speech presence for noise update */
320 /* Compute the gain floor based on different floors for the background noise and residual echo */
321 static void compute_gain_floor(int noise_suppress, int effective_echo_suppress, spx_word32_t *noise, spx_word32_t *echo, spx_word16_t *gain_floor, int len) argument
331 /* gain_floor = sqrt [ (noise*noise_floor + echo*echo_floor) / (noise+echo) ] */
334 spx_sqrt(SHL32(EXTEND32(DIV32_16_Q15(PSHR32(noise[i],NOISE_SHIFT) + MULT16_32_Q15(gain_ratio,echo[i]),
335 (1+PSHR32(noise[
380 compute_gain_floor(int noise_suppress, int effective_echo_suppress, spx_word32_t *noise, spx_word32_t *echo, spx_word16_t *gain_floor, int len) argument
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/external/ImageMagick/coders/
H A Dmsl.c685 if (LocaleCompare((const char *) tag,"add-noise") == 0) local
691 noise;
694 Add noise image.
702 noise=UniformNoise;
732 if (LocaleCompare(keyword,"noise") == 0)
739 noise=(NoiseType) option;
755 noise_image=AddNoiseImage(msl_info->image[n],noise,1.0,
1386 Add noise image.
5077 if (LocaleCompare((const char *) tag,"reduce-noise") == 0)
5083 Reduce-noise imag
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/external/aac/libAACdec/src/
H A Dusacdec_lpd.cpp125 void filtLP(const FIXP_DBL *syn, FIXP_PCM *syn_out, FIXP_DBL *noise, argument
131 tmp = fMultDiv2(noise[i], filt[0]); // Filt in Q-1.16
133 tmp += fMultDiv2((noise[i - j] + noise[i + j]), filt[j]);
152 FIXP_DBL *noise, *noise_in; local
158 noise = noise_buf + L_FILT; // L_FILT = 12 delay of upsampling filter
247 /* prevent that noise calculation below reaches into not defined signal
320 /* calculate noise based on voiced pitch */
362 /* substract from voiced speech low-pass filtered noise */
366 filtLP(&syn[i_subfr - L_SUBFR], &synth_out[i_subfr], noise,
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