BASOP encoder ParamISM: differences in decoded metadata with DTX

Basic info

• Float reference:
  • Encoder (float):f7a0e207 (ivas-lfoat-update)
  • Decoder (float):f7a0e207
• Fixed point:
  • Encoder (fixed): 12778592 (main)

Bug description

The decoded metadata in ParamISM differ between the float- and fixed-point encoder when DTX is enabled. It affects only few frames, possibly near the inactive parts.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1215

./IVAS_cod -dtx -ISM 4 stvISM1.csv stvISM2.csv stvISM3.csv stvISM4.csv -max_band FB 24400 48 stv4ISM48s.wav bit
./IVAS_dec EXT 48 bit dec.wav