Minor but noticeable differences in transport channels of low bitrate MASA with BASOP encoder

Basic info

• Float reference:
  • Encoder (float): db364042
  • Decoder (float): db364042
• Fixed point:
  • Encoder (fixed): f1458362
  • Decoder (fixed): f1458362

Bug description

Not the most serious issue but with this specific signal, the BASOP path signal sounds different to float path and at least in 17-19 s region also a bit rougher and less pleasant.

Ways to reproduce

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

IVAS_cod -masa 2 BASOP_Selection_MUSHRA-7ad_s14.met -max_band swb -dtx 16400 48 BASOP_Selection_MUSHRA-7ad_s14.wav test_1481.bs
IVAS_dec EXT 48 test_1481.bs 1481_BASOP_Selection_MUSHRA-7ad_s14.wav_16k4_48-48___EXT.wav