subaudible
adjective
sub·au·di·ble
| \ ˌsəb-ˈȯ-də-bəl
\
\
variants:
or sub-audible
Definition of subaudible
1
: too quiet or obscured to be heard clearly : inaudible or barely audible
… swaying in time with the rhythm, whisper-singing along at a subaudible level …— Karen Ravn … subaudible messages, i.e. auditory stimuli which are played at a low volume and under … music, ocean waves, etc. so that they cannot be heard.— Geoffrey P Lantos
2
: infrasonic sense 1
subaudible tones/frequencies
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