Four times National Award winning sound engineer H Sridhar passed away on late Monday morning (Dec 01) in Chennai. He died of cardiac arrest. Popularly known as Mozart of Madras, H Sridhar had worked with greats of Indian cinema including Manirathnam, Ram Gopal Varma, Ashutosh Gowarikar, K Balachander, Shankar, Kamal Haasan, etc. He was one of the few sound engineers in India who changed the way audio in films heard. He poineered the use of 'digital sound' in Indian films.

He had been working with A R Rehman for a long time. Lagaan,  Mahanadi, Dil Se, Amritha (all these four films fetched him national awards for best audiography), Roja, Rangeela, Satya, Jeans, Khusi, Sakhi, Jodha Akbaar, are some of films that he had worked for.