Stereo CNG during high level mixed music
# Basic info
<!--- Add commit SHA used to reproduce -->
- Float reference:
- Encoder (float): 6432cc3444b5bcef59615fe0bc46695b444a4b7a (Wed Feb 5 13:17:10 2025)
- Decoder (float): 6432cc3444b5bcef59615fe0bc46695b444a4b7a (Wed Feb 5 13:17:10 2025)
- Fixed point:
- Encoder (fixed): 20250131_Ittiam_fixed_point_encoder_release
- Also present in b8499d442c3b24f2daeb5a36e8c337fd6d40b975 (Mon Feb 10 11:35:44)
# Bug description
Stereo CNG kicks in during high-level signal. Starting at 5.34 and toggling a bit for the rest of the item.
Float

BASOP
{width=858 height=839}
# Ways to reproduce
Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1243
<!-- Commandline or script -->
```bash
./IVAS_cod -stereo -dtx 24400 48 hotel_input.wav bit.192
./IVAS_dec_ref STEREO 48 bit.192 out.wav
```
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issue