SBA decoder binaural room reverb: Big differences between BASOP and Float

Basic info

• Float reference:
  • Encoder (float): 957cd45f
  • Decoder (float): 957cd45f
• Fixed point:
  • Encoder (fixed): n/a
  • Decoder (fixed): ca3146eb

Bug description

We still have big differences for certain configurations of BINAURAL_ROOM_REVERB between BASOP and Float.

BASOP-Float

Is this due to some error propagation, or where exactly is this coming from?

Ways to reproduce

IVAS_dec -render_config ivas-codec/scripts/testv/rend_config_combined.cfg -aeid 1 BINAURAL_ROOM_REVERB 48 ltv48_HOA3.wav_SBA_3OA_at_128_kbps_48kHz_in_48kHz_out_BINAURAL_ROOM_REVERB_rendconf_sel_acoustic_env.192 out.wav

Bitstream: ltv48_HOA3.wav_SBA_3OA_at_128_kbps_48kHz_in_48kHz_out_BINAURAL_ROOM_REVERB_rendconf_sel_acoustic_env.zip