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IVAS_rend MASA + ISM rendering to 5.1/FOA produces significantly different output

Basic info

  • Encoder (float): N/A
  • Decoder: N/A
  • IVAS rend: a2b7ed0f

Bug description

A continuation of #1012 (closed), there are issues with output being significantly different between float and BASOP as reported by @ramoa here #1012 (comment 55221)

Ways to reproduce

From #1012 (closed), this is the way

Here are the additional command lines:

this works
..\ivas_rend_basopf -if META -i ism1_plus_masa_scene.txt -of FOA  -o float_foa.wav

differs significantly from float
IVAS_rend_1012 -if META -i ism1_plus_masa_scene.txt -of FOA  -o basop_foa.wav

this works
..\ivas_rend_basopf -if META -i ism1_plus_masa_scene.txt -of 5_1 -o float_5_1.wav

differs significantly from float 
IVAS_rend_1012 -if META -i ism1_plus_masa_scene.txt -of 5_1 -o basop_5_1.wav