SBA: CNG loudness difference for low-noise vectors at all DTX bitrates

Basic info

ivas-float-update: e15ad0ad basop main : 20250307_Ittiam_Encoder_Release_Subjective_Testing

• Float reference:
  • Encoder (float): f2eb9e08
  • Decoder (float): f2eb9e08
  • Renderer (float): f2eb9e08
• Fixed point:
  • Encoder (fixed): 0735f93e

Bug description

Comfort noise is approximately 3dB louder in FX. This can be heard throughout the non-speech portions of the four included vectors on Box.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1400

IVAS_cod_fx -sba 1 -dtx -no_delay_cmp <BR> 48.0 in.wav bs.g192
IVAS_dec_fl -no_delay_cmp FOA 48.0 bs.g192 decoded.wav
IVAS_rend_fl -i decoded.wav -if FOA -o rendered.wav -of BINAURAL