CELT_EMPH_COEFF   514 libavcodec/opus_celt.c         block->emph_coeff = 0.0f / CELT_EMPH_COEFF;
CELT_EMPH_COEFF    47 libavcodec/opusdsp.c         coeff = y[i] = x[i] + coeff*CELT_EMPH_COEFF;
CELT_EMPH_COEFF   168 libavcodec/opusenc.c             m = sample * CELT_EMPH_COEFF;
CELT_EMPH_COEFF   181 libavcodec/opusenc.c                 m = sample * CELT_EMPH_COEFF;