Stereo Encoder 32 kbps, DTX on: Plop-artefact in right Channel LTV

Basic info

• Float reference:
  • Encoder (float): f2eb9e08
  • Decoder (float): f2eb9e08
• Fixed point:
  • Encoder (fixed): 7f488e0a
  • Decoder (fixed): n/a

Bug description

For 32 kbit/s stereo, 32 kHz LTVs, the BASOP encoder is producing an audible plop-sound at 3:19.42:

BASOP:

Float:

Surprisingly enough this doesn't occur when coded w/o DTX.

Ways to reproduce

IVAS_cod -stereo -dtx 32000 32 ltv32_STEREO.wav ltv32_STEREO_32kbps_DTX.192
IVAS_dec stereo 32 ltv32_STEREO_32kbps_DTX.192 ltv32_STEREO_32kbps_DTX.wav