SBA decoder mono out: Big differences between BASOP and Float
# Basic info <!--- Add commit SHA used to reproduce--> - Float reference: - Encoder (float): 957cd45f4d6e88fb0f52d5b1df258c1668a9c61e - Decoder (float): 957cd45f4d6e88fb0f52d5b1df258c1668a9c61e - Fixed point: - Encoder (fixed): n/a - Decoder (fixed): ca3146eb9de8185ed0247945c643267826a32a94 # Bug description For the SBA decoder with mono output, there are still big differences between BASOP and float. **Diff BASOP-Float** ![Bildschirmfoto_2025-08-25_um_21.45.11](/uploads/74e9916076414aa79c3678df3635356d/Bildschirmfoto_2025-08-25_um_21.45.11.png) It seems to origin from the Mono DMX, since with EXT output the diffs get significantly smaller # Ways to reproduce <!--Commandline or script--> ```bash IVAS_dec MONO 48 ltv48_FOA.wav_SBA_at_32_kbps_48kHz_in_48kHz_out_MONO_out_DTX_bandwidth_switching.192 out.wav ``` Bitstreams (incl. one bitstream w/o bandwidth switching, which has similar issues): [bitstreams.zip](/uploads/42d985d7902166403f9bf8e4b6356d36/bitstreams.zip) <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary.--> Actual diff basop vs. float with bugfixes in dec_tcx_fx ![Screenshot_2025-11-24_101014](/uploads/c0e3f9c986b125258a4f997ce26dd738/Screenshot_2025-11-24_101014.png) Actual diff basop vs. float ![Screenshot_2025-11-19_220715](/uploads/e1027b814277e0a2df74a57f499c12f8/Screenshot_2025-11-19_220715.png) ACELP core output float at frame 6900 (MONO) ![Screenshot_2025-11-19_222043](/uploads/735052009b42b3290b85e15674dbfcfb/Screenshot_2025-11-19_222043.png) ACELP core output float at frame 6900 (EXT) ![Screenshot_2025-11-19_223548](/uploads/f735b2e14f0650aff704fe0af6bfbd60/Screenshot_2025-11-19_223548.png) ACELP core output basop at frame 6900 (MONO) ![Screenshot_2025-11-19_222912](/uploads/e1e65246b485e00440542f6e0f9aa4f4/Screenshot_2025-11-19_222912.png) ACELP core output basop at frame 6900 (EXT) ![Screenshot_2025-11-19_223325](/uploads/c3f9a4fd01f30bd77e2b03cfcff0adbe/Screenshot_2025-11-19_223325.png)
issue