SBA decoder mono out: 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

For the SBA decoder with mono output, there are still big differences between BASOP and float.

Diff BASOP-Float

It seems to origin from the Mono DMX, since with EXT output the diffs get significantly smaller

Ways to reproduce

IVAS_dec MONO 48 ltv48_FOA.wav_SBA_at_32_kbps_48kHz_in_48kHz_out_MONO_out_DTX_bandwidth_switching.192 out.wav

Bitstreams (incl. one bitstream w/o bandwidth switching, which has similar issues): bitstreams.zip

Actual diff basop vs. float with bugfixes in dec_tcx_fx

Actual diff basop vs. float

ACELP core output float at frame 6900 (MONO) ACELP core output float at frame 6900 (EXT) ACELP core output basop at frame 6900 (MONO) ACELP core output basop at frame 6900 (EXT)