SOUND AIR WAVES: DIGITISATION IN INDIAN SOCIETY

Mira K DesaiAssociate Professor & I/C Head

University Department of Extension Education, SNDT Women’s University, Juhu Campus,

Mumbai

Sound in Human Existence

Fourth Industrial Revolution• 1st : Water and Steam to

mechanise production• 2nd : Electric power for mass

production• 3rd : Electronic & IT to

automate production• 4th : Digital Revolution

[Source: World Economic Forum http://www.weforum.org ]

Sound to Audio.....Technological

Evolution

Digital Audio: Media & Processes• Music• Film• Television• Radio

• Recording• Transmission• Reception• Reproduction• Storage

Audio Recording Evolution

[Sound recording using mechanical devices]• ‘Acoustic era’ between 1877 to 1925 when

sound only from 250 Hz up to about 2,500 Hz • ‘Electrical era’ was from 1925 to 1945 till

television arrived. • ‘Magnetic era’ from 1945 to 1975 witnessed

developments of tapes. • ‘Digital era’ post-1975 but the word digital

came first time in 1938.

.WAV/WAVE

.AIF/AIFF/AIFC

Audio Formats

1988 1991 1993 1993

FILM

Digitalization in India

• 1995- Airwaves/Frequencies as ‘Public Property’• 1996- FM Radio licenses to private broadcasters• 2002/06 - Community radio movement in India,

Beginning of TV digitisation through CAS• 2012 - Analog sunset in four metros, 31 Dec 2016

new deadline for closing of analog TV in India• 2015 July- Launch of Dept of Electronics and IT,

GOI Digital India Project in three phases

NASSCOM India Leadership Forum 2015: Our Digital Future by Padmasree Warrior, CISCO, 12 Feb 2015 URL: http://www.slideshare.net/nasscom/nasscom-ilf-2015-44598308

Implications of Digitization• 4A: Anyone, Anytime, Anywhere, Anything• Oppotunities: Creation, Less space and more

Storage, Transmission, Consumption, Sharing and archiving, Giving VOICES

• Challenges: Infrastructure, Privacy, data ownership, Loss of formality and camouflaged connectivity, Lack of patience/depth, Temporariness, Losing Reality and lived virtuality.

THANK YOU for

YOUR TIME & ATTENTION

Feel Free to connect

drmiradesai@gmail.com

extensionedu@sndt.ac.in