Definitions by Shruts

Shruti 

1)The power of hearing, according to sacred Indian texts.

2) The śruti ("thing heard", "sound"; written also sruti or shruti) is the smallest interval of the tuning system in Indian classical music.

eg: 2:1 is taken as distance between same Swar Shruti Sa to Sa wherein Sa is equivalent to Do of do, re, me.

Shruti by Shruts February 5, 2010