# Bug description When checking operation of the EVS compatible stereo downmix, especially at lower sampling frequency rates (e.g., 16 kHz) there is a quality issue with one channel that is too strongly attenuated and becomes inaudible in the mono downmix output. This issue was found when validating fixed-point with extra test cases, it is also present in the reference floating-point. # Ways to reproduce <!-- Commandline or script --> ``` IVAS_cod -stereo_dmx_evs 24400 16 a1if1s2_a1im1s3_16.wav a1if1s2_a1im1s3_16.bit IVAS_dec 16 a1if1s2_a1im1s3_16.bit a1if1s2_a1im1s3_16_out.wav ```