Stereo Encoder 32 kbps: More rattling artifcats in 16 kHz LTVs
# Basic info
<!--- Add commit SHA used to reproduce-->
- Float reference:
- Encoder (float): 53594392095aa5d3b5ad748c4a092634216338e2
- Decoder (float): 53594392095aa5d3b5ad748c4a092634216338e2
- Fixed point:
- Encoder (fixed): 550e40e73f33098653222bfa5365edb218b01024
- Decoder (fixed): n/a
# Bug description
This is a follow-up from #1387: Even after applying !1367, there is still one spot left where these rattling/framing artifacts occur, namely 2:51.2 - 2:52:0.:
**BASOP:**
{width="1203" height="847"}
**Float:**
{width="1203" height="847"}
**Again, this seems to be related to 16 kHz processing only - resampling the input file to 32 kHz doesn't show the problem!**
# Ways to reproduce
<!--Commandline or script-->
```bash
./IVAS_cod -stereo 32000 16 ltv16_STEREO.wav ltv16_STEREO_32kbps.192
./IVAS_dec stereo 16 ltv16_STEREO_32kbps.192 ltv16_STEREO_32kbps.wav
```
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issue