Is Digital Audio Broadcasting viable for South Africa?
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Transcript of Is Digital Audio Broadcasting viable for South Africa?
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Presented by Thabani Mkhize and Andy LeveRadio goes Online course
2012
Is Digital Audio Broadcasting viable for South Africa?
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Discussion pointsIntroduction
explanation of Digital Audio Broadcasting (DAB)
Positives
Negatives
South African context
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IntroductionBroadcast and telecommunications networks like
radio, are being digitised worldwide
Quality service, greater choice, interactivity and multimedia are important now.
DAB is one of the ways radio is achieving this
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How does DAB work?audio is encoded to a digital signal.
This goes to a multiplexer and is transmitted to a network distributor on AM/FM and then to the receiver.
Multimedia
Carries “radio text”
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Positives real time information, song titles, genre, album details,
programme guides etc (similar to RDS found in some cars)
Better functionality- no frequency finding
More stations on spectrum
Pause and rewind feature
Less pirate stations
Clear sound
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Negatives If the signal is weak you get no transmission at
all.Expensive to maintain ( equipment, transmission
sites )Questionable audio quality because we are
“squashing “more stations “on spectrumsHigh humidity could damage the internal parts
thereof not working at all
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Digital Radio in South Africain the “thought stage” so the viability is still in
question...
Radio is the most popular medium- if we go digital what will it mean for the common man ?
expensive for consumers -will people afford the headsets ?
Rise in transmission costs of stations?
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South African situation
No clear direction
More focus on TV
Trial runs from 1997 -2010 on 5FM, Highveld, Metro FM, Radio Pulpit,YFM,702, and Classic FM only.
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South African situation SADIBA says: Radio in SA requires Expansion into new markets
No FM frequencies in key metro areas
Universal access to all language services in all centres
New broadcasters
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Niche services
Lower / new cost structures
FOR THEM DAB CAN DO THIS
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Government released a digital migration document and noted the developmental issues we face :
Digital divide social cohesionEmploymentCommon identity
SO HOW WILL DIGITAL AID THIS?
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For government: DAB = Curbing the divide:
more platforms to provide information
Facilitating e-government services
ICT services for all
Digital content hubs
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Jane Duncan ( 2010) wrote with TV : digital migration can lead to more channels with
fewer owners.
They could only broadcast commercially-driven programming that fails to address even the most basic informational and educative needs of society.
Is that what could happen with radio ?
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What must be done to give it a shot?• commercial broadcasters, broadcast network
operators and industry collaborate
quality assessment trials countrywide
Transmitter network rollout – how and cost
Clear regulations and licensing
Inform the public
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Duncan, Jane. 2012 A Political Economy of South Africa's Digital Broadcasting Transition The future of Terrestrial broadcasting : Technical report 013http://www.southafrica.info/about/media/digitaldzonga-250810.htm#ixzz22N6uBt89
SADIBA “Digital radio in SA presentation : December 2011. retrieved from www.sadiba.org Broadcasting Digital Migration Policy document :electronic communications act 2005).
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