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  /frameworks/av/services/audioflinger/tests/
resampler_tests.cpp 165 unsigned passband, unsigned stopband,
201 const unsigned stopbandFrame = stopband * outputFreq / 1000.;
299 * This checks stopband response of the chirp signal to make sure frequencies
300 * are properly suppressed. It uses downsampling because the stopband can be
316 // there must be at least 60dB relative attenuation between stopband and passband.
323 // there must be at least 60dB relative attenuation between stopband and passband.
344 // there must be at least 60dB relative attenuation between stopband and passband.
351 // there must be at least 60dB relative attenuation between stopband and passband.
372 // there must be at least 60dB relative attenuation between stopband and passband.
379 // there must be at least 60dB relative attenuation between stopband and passband
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  /external/aac/libSBRdec/src/
sbr_dec.cpp     [all...]
  /frameworks/av/services/audioflinger/
AudioResamplerFirGen.h 146 * For 16b coefficients this can improve stopband dB performance by up to 2dB.
319 * Note: Beta cannot exceed 15 (hence Stopband cannot exceed 144dB = 24b).
490 * The passband is often very small, and sampled that way. The stopband is often much
521 * This is used to test passband and stopband performance.
573 * @param fs is the stopband normalized frequency, 0 < fp < fs < 0.5.
577 * @param stopSteps is the number of stopband sampling steps.
588 * @param stopMax is the maximum value in the stopband.
590 * @param stopRipple is the stopband ripple, also known as stopband attenuation.
607 // fmin is really not important for the stopband
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AudioResamplerDyn.cpp 246 printf("stopband(%lf, %lf): %.8lf %.3lf\n", fs, 0.5, stopMax, stopRipple);
  /external/aac/libSBRenc/src/
tran_det.cpp 822 h_sbrFastTransientDetector->stopBand = fMin(TRAN_DET_STOP_FREQ/bandwidth_qmf_slot, no_qmf_channels);
823 h_sbrFastTransientDetector->startBand = fMin(sbr_qmf_1st_band, h_sbrFastTransientDetector->stopBand - TRAN_DET_MIN_QMFBANDS);
826 FDK_ASSERT(h_sbrFastTransientDetector->startBand < h_sbrFastTransientDetector->stopBand);
828 FDK_ASSERT(h_sbrFastTransientDetector->stopBand > 1);
832 FDK_ASSERT(h_sbrFastTransientDetector->stopBand - h_sbrFastTransientDetector->startBand <= 64);
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tran_det.h 130 INT stopBand;
env_est.cpp 120 \brief stopBand - number of QMF bands
133 const INT stopBand,
153 for (b=startBand; b<stopBand; b++) {
157 for (b=startBand; b<stopBand; b++) {
163 for (b=startBand; b<stopBand; b++) {
169 maxNEnergyValues = fMin(SBR_MAX_ENERGY_VALUES, stopBand-startBand);
184 for (b=startBand+maxNEnergyValues; b<stopBand; b++) {
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sbr_encoder.cpp 312 INT startBand, stopBand;
329 &stopBand
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  /external/libopus/silk/
LP_variable_cutoff.c 34 80 dB minimum stopband attenuation, and
tables_other.c 112 80 dB minimum stopband attenuation, and
  /external/aac/libAACdec/src/
aacdec_tns.cpp 172 filter->StopBand = nextstopband;
392 stop = fixMin( fixMin(filter->StopBand, tns_max_bands),
aacdec_tns.h 108 UCHAR StopBand;

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