| In
broadcasting industry, there are different kinds of Digital
Sound Broadcasting Systems named: |
-
DAB, Eureka
147
-
IBOC, In-Band
On Channel
-
DRM, Digital
Radio Mondiale
-
ISDB-TSB,
Integrated Services Digital Broadcasting - for Terrestrial
Sound Broadcasting
-
DVB-T,
Digital Video Broadcasting
-
Worldspace
Satellite
-
XM Radio
-
Proposed
digital broadcasting system from China:
-
ADTB-T,
Advanced Digital Television Broadcasting Terrestial
transmission system 高級數位電視廣播系統
-
DMB-T,
Terrestrial Digital Multimedia Television Broadcasting地面數位多媒體電視廣播傳輸協定
|
| This
page is focused on potential Systems: DAB,
IBOC,
DRM, ADTB-T
& DMB-T |
|
| Tabular
Comparision of Digital Sound Broadcasting Systems |
| Systems / Parameter |
Eureka 147 |
IBOC-AM |
IBOC-FM |
DRM |
ISDB-T |
| Bands |
VHF-III, L-Band |
MF |
VGH-FM |
LF, MF, HF |
VHF, UHF |
| Origin |
Europe |
US-prop |
Europe |
Japan |
| Satellite |
Possible |
No |
No |
Possible |
| Hybrid |
Possible |
No |
No |
Possible |
| Bandwidth |
Wideband 1.5MHz |
Narrowband 18/20kHz |
Narrowband 200kHz |
Narrowband 9-18kHz |
Wideband 0.4 or 1.3MHz |
| Multiplex of services |
Yes |
No |
No |
Yes |
| Audio Coding method |
MPEG-1 Layer II and MPEG-2 Layer II |
PAC |
MPEG-4 & ACC |
MPEG-2 Layer II, MPEG-2 AAC, MP3 |
| Bit rate for Audio Quality |
near CD at 192-224kbps |
"FM" at 20-24kbps |
"CD" at 98kbps |
"Mono FM" at 24 kbps |
MPEG-2 AAC: "CD" at 144 kbps |
| Infrastructure |
FM/TV and Infill sites |
AM sites |
FM sites |
AM sites |
FM/TV sites |
| Standardization |
Extensive |
Developmental, limited standards |
High |
Some |
| Receiver availability |
Yes |
No |
No |
No |
| On-Air |
Yes |
Tests |
Tests |
Tests |
source: Australian Broadcasting Authority
|
