Related Clues:
- Unit measuring loudness
- ~40-decibel unit
- Unit of measurement for loudness
- Unit for measuring sound
- Unit of sound intensity
- It's quite sound so to bleed about a hundred and one
- After the first of last month be the last of April by the sound of it
- Acoustical unit
- Sound measure of tenth Babylonian deity?
- Sound measure destroyed bed lice
- Sound unit has to be in Israel after a month
- Some noise for a month and bad-mouthing won't start
- Last month starts with ringer short of volume
- Bed lice make some noise
- Lord Byron piece's extended measure, by the sound of things