BASOP encoder: Distortion and high MLD for Unified Stereo @24.4kbps

Basic info

• Float reference:
  • Encoder (float):b09a7f47
  • Decoder (float):b09a7f47
• Fixed point:
  • Encoder (fixed): 4c0dfa80
  • Decoder (fixed):

Bug description

Serious distortion between 1.5s and 3.9s resulting in high MLD (37.49). The issue exists for both dtx and normal operation.

Float Reference:

BASOP:

Ways to reproduce

./IVAS_cod_ref.exe -stereo 24400 48 hotel_input.wav bitref
./IVAS_dec_ref.exe Stereo 48 bitref out_ref.wav

./IVAS_cod.exe -stereo 24400 48 hotel_input.wav bit
./IVAS_dec_ref.exe Stereo 48 bit out_dut.wav

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1243