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| author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2017-08-18 08:34:02 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2017-08-18 08:34:02 +0300 |
| commit | cc71300f50dc11872fb410a2eb119079053a19df (patch) | |
| tree | 358fe2ab7a5535aca8d1657288e20d60458f6b30 | |
| parent | 5b0673f732fa89659586552971211331b48c6267 (diff) | |
preventing extreme values
| -rw-r--r-- | src/denoise.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/denoise.c b/src/denoise.c index a259276..171019b 100644 --- a/src/denoise.c +++ b/src/denoise.c @@ -323,6 +323,7 @@ static int compute_frame_features(DenoiseState *st, kiss_fft_cpx *X, kiss_fft_cp float gain; float *(pre[1]); float tmp[NB_BANDS]; + float follow, logMax; frame_analysis(st, X, Ex, in); RNN_MOVE(st->pitch_buf, &st->pitch_buf[FRAME_SIZE], PITCH_BUF_SIZE-FRAME_SIZE); RNN_COPY(&st->pitch_buf[PITCH_BUF_SIZE-FRAME_SIZE], in, FRAME_SIZE); @@ -348,8 +349,13 @@ static int compute_frame_features(DenoiseState *st, kiss_fft_cpx *X, kiss_fft_cp features[NB_BANDS+2*NB_DELTA_CEPS] -= 1.3; features[NB_BANDS+2*NB_DELTA_CEPS+1] -= 0.9; features[NB_BANDS+3*NB_DELTA_CEPS] = .01*(pitch_index-300); + logMax = -2; + follow = -2; for (i=0;i<NB_BANDS;i++) { Ly[i] = log10(1e-2+Ex[i]); + Ly[i] = MAX16(logMax-6, MAX16(follow-1.2, Ly[i])); + logMax = MAX16(logMax, Ly[i]); + follow = MAX16(follow-1, Ly[i]); E += Ex[i]; } if (!TRAINING && E < 0.04) { |