Basop Encoder: Spectral Holes, Glitches, Leakage Unified Stereo @24.4kbps

Basic info

• Float reference:
  • Encoder (float):b09a7f47
  • Decoder (float):b09a7f47
• Fixed point:
  • Encoder (fixed):4c0dfa80
  • Decoder (fixed):

Bug description

There are spectral holes between 8kHz and 16kHz, leakage to higher frequencies and glitches for stereo bitstream encoded with fixed point, after 3.8 seconds. Same issue is observed with different inputs.

Float:

Fixed:

Ways to reproduce

Same input with issue #1243 (closed)

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1243

./IVAS_cod_ref.exe -stereo 24400 48 hotel_input.wav bitref
./IVAS_dec_ref.exe Stereo 48 bitref out_ref.wav

./IVAS_cod.exe -stereo 24400 48 hotel_input.wav bit
./IVAS_dec_ref.exe Stereo 48 bit out_dut.wav