<!--- Remember to add issue and MR links to the status page in wiki here https://forge.3gpp.org/rep/sa4/audio/ivas-basop/-/wikis/IVAS-PC-MR-conversion-status -->
#define FORMANT_SHARPENING_NOISE_THRESHOLD_FX 5376 /* 21 (!8)lp_noise level above which formant sharpening is deactivated - at this level most of 20 dB SNR office noisy speech still uses sharpening */