Look up: Sibilance

1. Sibilance
   Energy from a voice centred around 7 kHz caused by pronouncing 's', 'sh' or 'ch' sounds.
   Found on http://www.testing1212.co.uk/a.htm
   
   
2. Sibilance
   High frequency whistling or lisping sound that affects vocal recordings, due either to poor microphone technique or excessive equalization
   Found on http://www.musiconmypc.co.uk/art_glossar
   
   
3. Sibilance
   High frequency whistling or lisping sound that affects vocal recordings, due either to poor mic technique or excessive equalisation.
   Found on http://www.traditionalmusic.co.uk/music%
   
   
4. Sibilance
   A hissing sound produced when pronouncing S and Z.
   Found on http://www.diracdelta.co.uk/science/sour
   
   
5. Sibilance
   • (n.) Alt. of Sibilancy
   Found on http://thinkexist.com/dictionary/meaning
   
   
6. Sibilance
   An exaggerated hissing in voice patterns. (Post Production)
   Found on http://www.filmland.com/glossary/Diction