I've wanting to ask this for a long time. There was a period in the late 90's when ARR used some kind of 'glassy' feature to female voices in his songs. I'm unable to describe it properly.. what I mean is, the female voices had some unnatural crispness added.
for eg, lets take Harini's voice in 'Telephone Mani Pol' - Indian. or the female interlude in 'Thendrale Thendrale' - Kadhal Desam. and especially, the 's' sounds while singing will be so prominent. soon after, all other music directors started using a similar style , to the point where it was tiring. but ARR stopped it.. Does anyone know what causes that feature ? is that some different type of recording / something is added. I hope I explained properly.. if someone has any idea let me know pls. thanks..