Low-bitrate OMASA shows a bit high MLD (over 10) in BASOP decoder rendering to binaural
Basic info
- Float reference:
- Fixed point:
- Decoder (fixed): 56ce55f8
Bug description
There are a couple of cases where BASOP decoder binaural rendering show over 10 MLD score for OMASA input that is in PreRend bitrates. In practice, this should be comparable to MASA which already shows generally better scores. Decoding should also quite nicely already.
Here are plots for the first example case. It could be that the diff spikes in the time plot are the issue but not sure.
Ways to reproduce
Two example cases here.
IVAS_cod -no_delay_cmp -ism_masa 3 2 ltv48_OMASA_3ISM_2TC_ISM1.csv ltv48_OMASA_3ISM_2TC_ISM2.csv ltv48_OMASA_3ISM_2TC_ISM3.csv ltv48_OMASA_3ISM_2TC.met -max_band swb 24400 32 ltv32_OMASA_3ISM_2TC.wav test_0554.bs
IVAS_dec -no_delay_cmp BINAURAL 32 test_0554.bs 0554_ltv32_OMASA_3ISM_2TC.wav_24k4_32-32___BINAURAL-no_delay_cmp.wav
IVAS_cod -no_delay_cmp -ism_masa 3 2 ltv48_OMASA_3ISM_2TC_ISM1.csv ltv48_OMASA_3ISM_2TC_ISM2.csv ltv48_OMASA_3ISM_2TC_ISM3.csv ltv48_OMASA_3ISM_2TC.met -max_band fb 13200 32 ltv32_OMASA_3ISM_2TC.wav test_0551.bs
eid-xor -fer -vbr -bs g192 -ep g192 test_0551.bs ep_10pct.g192 test_0551.bs_eid
IVAS_dec -no_delay_cmp BINAURAL 32 test_0551.bs_eid 0551_ltv32_OMASA_3ISM_2TC.wav_13k2_32-32___BINAURAL-no_delay_cmp.wav