Residual PLC attenuation ignores q_fac / Sqrt32 exponent (scaling not tracked)
# Basic info
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- Fixed point:
- Encoder (fixed): 829ddcd5
- Decoder (fixed): 829ddcd5
# Bug description
In the stereo_dft_res_ecu_burst_att_fx() ( lib_dec/ivas_stereo_dft_plc_fx.c:752), in both branches, BASOP_Util_Divide3232_Scale(..., &q_fac) returns a normalized Q15 mantissa plus the ratio's exponent q_fac, but q_fac is never applied. In the ACELP branch the Sqrt32(..., &exponent) output exponent is likewise discarded. So fac is computed from the normalized mantissa only, not the true ratio magnitude.
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issue