# Basic info <!--- Add commit SHA used to reproduce --> - Float reference: - Encoder (float): db364042fba738d5d0f9823c047e75edea62bae7 - Decoder (float): db364042fba738d5d0f9823c047e75edea62bae7 - Fixed point: - Decoder (fixed): c7a858558ad1db5d351625145b2d030bb70c73d2 # Bug description Decoding a Multichannel 7.1+4 bitstream encoded at 128kbps triggers an assert in the decoder: ``` Assertion failed: (0), function L_shl, file basop32.c, line 2332. ``` {width=417 height=261} # Ways to reproduce Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1797 <!-- Commandline or script --> ```bash ./IVAS_dec mono 48 bit out.wav ``` This crash occurs also for stereo output, and also for FER/JBM conditions. <!--- 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. -->