| /external/chromium_org/content/browser/speech/endpointer/ |
| endpointer.h | 26 // Signals that silence/noise has been detected for a *short* amount of
57 // i.e. noise level estimation.
72 // background noise which could be user speech, false if not.
101 // RMS background noise level in dB.
112 // The speechInputPossiblyComplete event signals that silence/noise has been
117 // The speechInputComplete event signals that silence/noise has been
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| energy_endpointer.cc | 199 // The initial value of the noise and speech levels is inconsequential.
242 // noise and speech level estimates.
310 // be about 10dB below the average RMS. If the noise level is high,
331 // Update speech and noise levels.
344 // Update quickly initially. We assume this is noise and that
345 // speech is 6dB above the noise.
355 // Update Noise level. The noise level adapts quickly downward, but
364 decision_threshold_ = noise_level_ * 2; // 6dB above noise level.
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| /external/aac/libAACdec/src/ |
| aacdec_pns.cpp | 87 Description: perceptual noise substitution tool
147 acordding to the noise energy
163 The function activates the noise correlation between the channel pair
179 The function indicates if the noise correlation between the channel pair
198 The function indicates if the noise correlation between the channel pair
250 * \brief Generate a vector of noise of given length. The noise values are
251 * scaled in order to yield a noise energy of 1.0
252 * \param spec pointer to were the noise values will be written to.
253 * \param size amount of noise values to be generated
[all...] |
| /external/speex/libspeex/ |
| preprocess.c | 46 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)
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])
[all...] |
| /external/chromium_org/third_party/opus/src/silk/ |
| structs.h | 43 /* Noise shaping quantization state */
69 opus_int32 NL[ VAD_N_BANDS ]; /* Noise energy level in each band */
70 opus_int32 inv_NL[ VAD_N_BANDS ]; /* Inverse noise energy level in each band */
71 opus_int32 NoiseLevelBias[ VAD_N_BANDS ]; /* Noise level estimator bias/offset */
138 silk_nsq_state sNSQ; /* Noise Shape Quantizer State */
158 opus_int la_shape; /* Look-ahead for noise shape analysis (samples) */
159 opus_int shapeWinLength; /* Window length for noise shape analysis (samples) */
167 opus_int shapingLPCOrder; /* Filter order for noise shaping filters */
177 opus_int warping_Q16; /* Warping parameter for warped noise shaping */
|
| define.h | 106 /* Milliseconds of lookahead for noise shape analysis */
110 /* Maximum length of LPC window used in noise shape analysis */
146 /* Flag to use harmonic noise shaping */
149 /* Max LPC order of noise shaping filters */
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| /external/chromium_org/third_party/mesa/src/src/mesa/program/ |
| prog_noise.c | 34 * \brief C implementation of Perlin Simplex Noise over 1, 2, 3 and 4 dims.
38 * This implementation is "Simplex Noise" as presented by
41 * time shading actually took on), under the title "hardware noise".
75 * This array is accessed a *lot* by the noise functions.
76 * A vector-valued noise over 3D accesses it 96 times, and a
77 * float-valued 4D noise 64 times. We want this to fit in the cache!
138 * a close match with the value range of classic Perlin noise, the final
139 * noise values need to be rescaled to fit nicely within [-1,1].
140 * (The simplex noise functions as such also have different scaling.)
141 * Note also that these noise functions are the most practical and usefu
[all...] |
| /external/mesa3d/src/mesa/program/ |
| prog_noise.c | 34 * \brief C implementation of Perlin Simplex Noise over 1, 2, 3 and 4 dims.
38 * This implementation is "Simplex Noise" as presented by
41 * time shading actually took on), under the title "hardware noise".
75 * This array is accessed a *lot* by the noise functions.
76 * A vector-valued noise over 3D accesses it 96 times, and a
77 * float-valued 4D noise 64 times. We want this to fit in the cache!
138 * a close match with the value range of classic Perlin noise, the final
139 * noise values need to be rescaled to fit nicely within [-1,1].
140 * (The simplex noise functions as such also have different scaling.)
141 * Note also that these noise functions are the most practical and usefu
[all...] |
| /external/jmonkeyengine/engine/src/terrain/com/jme3/terrain/noise/filter/ |
| PerturbFilter.java | 30 package com.jme3.terrain.noise.filter;
35 import com.jme3.terrain.noise.ShaderUtils;
36 import com.jme3.terrain.noise.fractal.FractalSum;
|
| /external/chromium_org/third_party/skia/src/effects/ |
| SkPerlinNoiseShader.cpp | 31 // limitValue is the maximum perlin noise array index value allowed
32 // newValue is the current noise dimension (either width or height)
34 // If the noise value would bring us out of bounds of the current noise array while we are
35 // stiching noise tiles together, wrap the noise around the current dimension of the noise to
147 // Copy noise data
148 uint16_t noise[4][kBlockSize][2];
152 noise[channel][i][j] = fNoise[channel][i][j]
[all...] |
| /external/jmonkeyengine/engine/src/terrain/com/jme3/terrain/noise/modulator/ |
| CatRom2.java | 30 package com.jme3.terrain.noise.modulator;
35 import com.jme3.terrain.noise.ShaderUtils;
|
| Modulator.java | 30 package com.jme3.terrain.noise.modulator;
|
| NoiseModulator.java | 30 package com.jme3.terrain.noise.modulator;
|
| /external/llvm/utils/fpcmp/ |
| fpcmp.cpp | 1 //===- fpcmp.cpp - A fuzzy "cmp" that permits floating point noise --------===//
11 // tolerate errors due to floating point noise, with the -r and -a options.
|
| /external/skia/src/effects/ |
| SkPerlinNoiseShader.cpp | 31 // limitValue is the maximum perlin noise array index value allowed
32 // newValue is the current noise dimension (either width or height)
34 // If the noise value would bring us out of bounds of the current noise array while we are
35 // stiching noise tiles together, wrap the noise around the current dimension of the noise to
147 // Copy noise data
148 uint16_t noise[4][kBlockSize][2];
152 noise[channel][i][j] = fNoise[channel][i][j]
[all...] |
| /external/wpa_supplicant_8/wpa_supplicant/examples/ |
| wpas-test.py | 80 noise = props["noise"]
|
| /frameworks/base/location/java/android/location/ |
| GpsSatellite.java | 62 * Returns the signal to noise ratio for the satellite.
64 * @return the signal to noise ratio
|
| /external/chromium_org/content/browser/geolocation/ |
| wifi_data_provider_mac.cc | 133 // signal-to-noise and SSID
140 // WirelessNetworkInfo::noise appears to be noise floor in dBm.
142 access_point_info->noise;
|
| /external/jmonkeyengine/engine/src/blender/com/jme3/scene/plugins/blender/textures/ |
| TextureGeneratorStucci.java | 52 * Constructor stores the given noise generator.
54 * the noise generator
88 noiseValue = NoiseGenerator.NoiseFunctions.noise(texvec[0], texvec[1], texvec[2], noisesize, 0, noisebasis, isHard);
94 texres.intensity = NoiseGenerator.NoiseFunctions.noise(texvec[0], texvec[1], texvec[2] + ofs, noisesize, 0, noisebasis, isHard);
|
| /external/jmonkeyengine/engine/src/terrain/com/jme3/terrain/noise/ |
| Filter.java | 30 package com.jme3.terrain.noise;
|
| /external/libvpx/libvpx/vp8/common/ |
| postproc.h | 20 char noise[3072]; member in struct:postproc_state
|
| /external/libvpx/libvpx/vp8/common/x86/ |
| postproc_mmx.asm | 241 ;void vp8_plane_add_noise_mmx (unsigned char *Start, unsigned char *noise,
259 mov rcx, arg(1) ;noise
277 psubusb mm1, [rdx] ;blackclamp ; clamp both sides so we don't outrange adding noise
281 movq mm2,[rdi+rax] ; get the noise for this line
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| /frameworks/av/media/libstagefright/codecs/aacenc/inc/ |
| tns_func.h | 24 Temporal noise shaping
|
| /external/chromium_org/third_party/opus/src/silk/float/ |
| noise_shape_analysis_FLP.c | 127 /* Compute noise shaping coefficients and initial gain values */
221 /* Slightly more warping in analysis will move quantization noise up in frequency, where it's better masked */
228 /* Compute noise shaping AR coefs and gains */
254 /* Add white noise, as a fraction of energy */
269 /* Compute noise shaping filter coefficients */
305 /* Control low-frequency shaping and noise tilt */
311 /* Reduce low frequencies quantization noise for periodic signals, depending on pitch lag */
341 /* Harmonic noise shaping */
344 /* More harmonic noise shaping for high bitrates or noisy input */
348 /* Less harmonic noise shaping for less periodic signals *
[all...] |
| /external/chromium_org/third_party/opus/src/silk/fixed/ |
| main_FIX.h | 100 /* Noise shaping analysis */
102 /* Compute noise shaping coefficients and initial gain values */
233 /* Add noise to matrix diagonal */
237 opus_int32 noise, /* I Noise to add */
|
