On Tue, Mar 26, 2002 at 01:56:04PM +0100, Thomas Sailer wrote: > Matt Zimmerman wrote: > > > incompatible. The adoption of ATSC in North America seems to be a curse, > > because those of us who live here will not be able to take advantage of the > > DVB hardware which seems to be widely available in Europe. > > The main difference AFAIK between ATSC and DVB are: > > - ATSC uses the rather broken VSB modulation for terrestrial transmission > versus DVB COFDM. This should only be visible to the demodulator chipset, > both deliver Transport Stream packets to the upper layers. > In fact, NIM modules are announced that can demodulate both > standards. The only difference should be the tuning and mode information > you write into the NIM module.
This sounds as if the two standards could be software-compatible (same applications and API), if not hardware-compatible (same device drivers, interface cards which understand both modulations). What is a NIM module exactly? Network Interface Module? What kind of device can interface with a NIM? > - ATSC requires A/52 aka AC.3 sound, DVB requires MPEG Layer II > and has AC.3 optional. > > - ATSC has different PSI (Program Specific Info) tables. Thanks for these specifics. -- - mdz -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
