Decoder MC 5.1 at 24.4kbps to mono output scaling issue

Basic info

• Float reference:
  • Encoder (float): db364042
  • Decoder (float): db364042
• Fixed point:
  • Encoder (fixed): 6c320724
  • Decoder (fixed): 6c320724

Bug description

Decoding the provided multichannel bitstream to MONO output results in a high MLD of 50.9, with the fixed point output containing data outside the coded bandwidth.

Float output (-10.34 LUFS):

Fixed output (-5.59 LUFS):

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1793

./IVAS_dec mono 48 bit out.wav