audible artifact in signal decoded from fixed-point encoded OSBA low bitrate bitstreams with -16LKFS input sampled at 16/32 kHz

Basic info

• Float reference:
  • Encoder (float):ecb2d1dd
  • Decoder (float):ecb2d1dd
• Fixed point:
  • Encoder (fixed):20cb1008
  • Decoder (fixed):

Bug description

Audible artifacts in the background heard in the W channel at around 1s mark, especially clear in 16kHz sampled signal.

Tested at 13.2kbps

Ways to reproduce

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