sound problem using heandbrake

[yakov]

hi everyone , i am using handbrake to burn subtitle and its works fine , but i have a problem with the audio , usually its fine except on high decibel then i heard noises , how to fixed it ? [hers the code i used , i picked it from the HandBrakeCLI --preset-list commend the "high profile"] :

HandBrakeCLI -i movie.mp4  -o movie1.mp4   -e x264  -q 20.0 -a 1,1 -E ffaac,copy:ac3 
-B 160,160 -6 dpl2,none -R Auto,Auto -D 0.0,0.0 --audio-copy-mask aac,ac3,dtshd,dts,mp3 
--audio-fallback ffac3 -f mp4 --decomb --loose-anamorphic --modulus 2 -m --x264-preset medium
 --h264-profile high --h264-level 4.1 -s 1 -N iso-8859-8  --srt-file "sub.srt" --srt-codeset UTF-8 --srt-burn

thanks for everyone who help