The problem was that ms_mask altered the phase during distortion
calculations but did not alter it again during codebook selection (e.g.
INTENSITY_BT or INTENSITY_BT2), so the phases got swapped around and the
artifacts appeared. M/S is off by default so the artifacts were only
present if -stereo_m
>cpe->ms_mask[w*16+g] = 0;
This defeats the purpose of changing the phase of the spectral coefficients
if ms_mask has been set by search_for_ms. If is_mask[idx] is 1 then ms_mask
is only used to alter the phase of the spectral coefficients, so probably
the phase gets altered incorrectly. The reason
On Fri, Jun 26, 2015 at 5:16 PM, Rostislav Pehlivanov
wrote:
> +if (dist2 <= dist1) {
> +cpe->is_mask[w*16+g] = 1;
> +cpe->ch[0].is_ener[w*16+g] = ener1/ener01;
> +cpe->ch[1].is_ener[w*16+g] = ener0/ener1;
> +
