ISM2 16.4 kbps Encoder: Energy in high-band too high in BASOP

Basic info

• Float reference:
  • Encoder (float): efe53129c9ed87a5067dd0a8fb9dca41db9c4add
  • Decoder (float): efe53129c9ed87a5067dd0a8fb9dca41db9c4add
• Fixed point:
  • Encoder (fixed): ac900052
  • Decoder (fixed): n/a

Bug description

When encoding ISM2 at 16.4 kbps, for the BASOP encoder the high-band is over-emphasized in BASOP:

BASOP:

Float:

Ways to reproduce

IVAS_cod -ism 2 ltvISM1.csv ltvISM2.csv 16400 48 ltv48_2ISM.wav bit.192

IVAS_dec EXT 48 bit.192 out.wav