# Basic info <!--- Add commit SHA used to reproduce --> * Float reference: * Encoder (float): e15ad0addc0b0a429fcf05e1683e77c05164738a * Fixed point: * Encoder (fixed): 54186be9af2e870c327c4dbcf4e574194eb24add * Decoder (fixed): 54186be9af2e870c327c4dbcf4e574194eb24add # Bug description There is a peculiar difference present in spectrograms of McMASA bitstream rendered with BINAURAL_ROOM_IR output. See below  This is not exactly that radically audible but it is still quite peculiar. This is also present with BASOP encoded bitstream. There is quite a bit of MLD score (over 16) for this but part of that might be explained by rate switching as well. # Ways to reproduce <!-- Commandline or script --> Use following command lines to replicate with rate switching file [mcmasa_7_1_4_techs_start_13k2_20frames.bin](/uploads/ba1bf644854e2215b735cdf3524dcdf5/mcmasa_7_1_4_techs_start_13k2_20frames.bin) ```bash IVAS_cod -mc 7_1_4 -max_band fb mcmasa_7_1_4_techs_start_13k2_20frames.bin 16 ltv16_MC714.wav test_0212.bs IVAS_dec BINAURAL_ROOM_IR 32 test_0212.bs 0212_ltv16_MC714.wav_mcmasa_7_1_4_techs_start_13k2_20frames_16-32___BINAURAL_ROOM_IR.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. -->