Increasing the CELT bit allocation slightly for stereo hybrid

Fixes a "regression" from 1.2 to 1.3-beta that was especially noticeable
on a Korean speech sample. (it wasn't a real regression since 1.2 only
worked because it was using CELT)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/opus_encoder.c b/src/opus_encoder.c
index b89b874b..694ff7e3 100644
--- a/src/opus_encoder.c
+++ b/src/opus_encoder.c
@@ -816,7 +816,7 @@ static int compute_silk_rate_for_hybrid(int rate, int bandwidth, int frame20ms,
    silk_rate *= channels;
    /* The CELT layer saves a bit more than SILK for stereo, so we boost SILK. */
    if (channels == 2 && rate >= 12000)
-      silk_rate += 1000;
+      silk_rate -= 1000;
    return silk_rate;
 }