# Basic info <!--- Add commit SHA used to reproduce --> - Float reference: - Encoder (float): b63c033f6c - Decoder (float): b63c033f6c - Fixed point: - Encoder (fixed): a6ac79717d - Decoder (fixed): a6ac79717d # Bug description There is an audible and visible "spike" in BASOP encoded signal (at 4 s shown below) using the provided input and command line. There is a transient also in pure float version but it is significantly emphasized with BASOP encoder.  # Ways to reproduce Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1499 <!-- Commandline or script --> Following command line and input from Box ```bash IVAS_cod -masa 2 BASOP_Selection_MUSHRA-7ad_s04.met -max_band swb -dtx 16400 48 BASOP_Selection_MUSHRA-7ad_s04.wav test_0971.bs IVAS_dec EXT 48 test_0971.bs 0971_BASOP_Selection_MUSHRA-7ad_s04.wav_16k4_48-48___EXT.wav ``` <!--- 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. -->