Artefact in BWE during noisy stereo speech @ 24.4 kbps

Basic info

• Float reference:
  • Encoder (float): deee9b97 (Wed Apr 23 06:31:22)
  • Decoder (float):
    • deee9b97 (Wed Apr 23 06:31:22)
• Fixed point:
  • Encoder (fixed): 182c2a50 (Tue Apr 29 11:08:25)

Bug description

There is an artefact in the high band at 00:06.3, seems to coincide with a mode switch since it also changes bandwidth at the same location.

BASOP

Float

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1530

./IVAS_cod -stereo -dtx 24400 48 s_011_48_REF.wav cut.192
./IVAS_dec_ref STEREO 48 cut.192 cut.wav

./IVAS_cod_ref -stereo -dtx 24400 48 s_011_48_REF.wav ref.192
./IVAS_dec_ref STEREO 48 ref.192 ref.wav