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obs-filters: Fix heavy distortion in Noise Suppression filter

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Noise Suppression: Clamp sample values before converting to integer.
This fixes an issue where samples exceeding full scale would overflow,
resulting in heavy distortion.

Closes jp9000/obs-studio#1113
This commit is contained in:
J.D. Purcell
2017-12-12 20:05:14 -05:00
committed by jp9000
parent c706742097
commit 459da1c863
1 changed files with 6 additions and 2 deletions
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8
plugins/obs-filters/noise-suppress-filter.c
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@@ -155,9 +155,13 @@ static inline void process(struct noise_suppress_data *ng)
/* Convert to 16bit */
for (size_t i = 0; i < ng->channels; i++)
for (size_t j = 0; j < ng->frames; j++)
for (size_t j = 0; j < ng->frames; j++) {
float s = ng->copy_buffers[i][j];
if (s > 1.0f) s = 1.0f;
else if (s < -1.0f) s = -1.0f;
ng->segment_buffers[i][j] = (spx_int16_t)
(ng->copy_buffers[i][j] * c_32_to_16);
(s * c_32_to_16);
}
/* Execute */
for (size_t i = 0; i < ng->channels; i++)