BASOP encoder OSBA: artifacts in discrete object channel

Basic info

• Float reference:
  • Encoder (float): f7a0e207 (ivas-float-update)
  • Decoder (float): f7a0e207 (ivas-float-update)
• Fixed point:
  • Encoder (fixed): 0ca1f14f (main)

Bug description

In ISM3SBA3, there a audible metallic artifacts on one of the discrete object channels. This is particularly pronounces in the "shakers" object. As the object channels are simply coded through MCT in this mode, this could also be an MCT -related issue.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1239

./IVAS_cod[_fx] -ism_sba 3 3 0.csv 1.csv 2.csv -max_band SWB 256000 48 10dB.wav bit[_fx]
./IVAS_dec EXT 48 bit[_fx] dec[_fx].wav