H. Sridhar (Sridhar Hariharan/H.Padmanabh) was a sound engineer from India and known for his work with the Indian Musician A R Rahman.
Sridhar was the Chief Audio Engineer at Media Artists Chennai. A mathematics graduate, with keen interest in electronics and formal music training, he started a professional sound engineering career in 1988. He had engineered over 200 films and worked closely with directors like Mani Ratnam, K Balachandar, Bharathiraaja, Shankar, Kamal Hassan, P C Sreeram, Priyadarsan, Sibi Malayil and Ramgopal Varma.
Among Sridhar's many professional credits was the fact that he engineered all songs and background scores for the renowned music director A R Rahman. Some ground-breaking films to his credit are Roja, Gentleman, Kadhalan, Thiruda Thiruda, Bombay, Duet, Mahanadi, Rangeela, Kuruthippunnal, Muthu, Indian, Minsaara Kanavu and Iruvar. He also engineered the background music score and songs for the national award winning film Kalapani for music director Ilaiyaraaja and Minasaara Kanavu for music director A R Rahman.
Having pioneered the use of Digital Sound for Indian films in the DTS format, Sridhar successfully completed six-track surround sound mixing for more than 200 films including Karuppu Roja, Siraichaalai, Indian, Bharatheeyudu, Hindustani, Paeyi, Iruvar, Minsaara Kanavu, Sapnay, Ziddi, Judwaa, My Dear Kuttichathan 3D, V I P, Aflatoon, Devathai, Chhota Chetan, Pyar Kiya To Darna Kya, Satya, Jeans, Dil Se.., Kadhalar Dinam, Padayappa, Mudhalvan, Pukaar, Alaipaayuthey, Kandukondain Kandukondai, Kushi, among others.
Sridhar also engineered and mixed albums for international artists like George Harrison of The Beatles, John Neptune Kaizan, Pandit Ravi Shankar, Zakir Hussain, L.Shankar and John McLaughlin (Mahavishnu Orchestra & Shakti fame).
He died in the morning of December 1, 2008 due to cardiac problems.