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Signal cuts with BASOP encoder - float decoder combination in MASA DTX rate switching

Basic info

  • Float reference:
    • Encoder (float):
    • Decoder (float): b63c033f
  • Fixed point:
    • Encoder (fixed): f66bba2c
    • Decoder (fixed):

Bug description

There are some impulses and signal missing with combination of BASOP encoder and float decoder. See plots below:

Screenshot_2025-04-10_at_11.01.29

This does not happen with any other combination of BASOP and float binaries.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1467

Use the command line with files from Box.

IVAS_cod -masa 2 BASOP_Selection_P800-8b_cat5.met -max_band fb -dtx generic_start_128k_20frames.bin 48 BASOP_Selection_P800-8b_cat5.wav test_2192.bs
IVAS_dec_ref EXT 48 test_2192.bs 2192_BASOP_Selection_P800-8b_cat5.wav_generic_start_128k_20frames_48-48___EXT.wav
Edited by Tapani Pihlajakuja