The UK Home Automation Archive

Archive Home
Group Home
Search Archive


Advanced Search

The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024

Latest message you have seen: Keene gone under :(


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Modulation..



At 15:34 22/06/00 +0200, you wrote:
>ask... Most (if not all) the modulators I've seen are mono. So could I
use 2
>and feed the left sound into 1 and the right sound into the other. Does
that
>make sense?

There is only one conventional audio channel on TV broadcasts.  The stereo
is modulated in a more complex way, crammed into the picture bandwidth
(NICAM stands for Near Instantaneous Companded Audio Modulation), I've not
seen a domestic NICAM modulator.

You could modulate L onto one channel and R onto another (eg one modulator
set to ch 38, one set to ch40), but then you'd need two demodulators at the
other end to extract the audio.  It'd probably be easier to run some extra
cable... and the sound quality would be better too :-)

If you can give more details on what you're trying to achieve, there might
be an easier way!

Nigel


------------------------------------------------------------------------
SALESFORCE.COM MAKES SOFTWARE OBSOLETE
Secure, online sales force automation with 5 users FREE for 1 year!
http://click.egroups.com/1/2658/9/_/2065/_/961681222/
------------------------------------------------------------------------




Home | Main Index | Thread Index

Comments to the Webmaster are always welcomed, please use this contact form . Note that as this site is a mailing list archive, the Webmaster has no control over the contents of the messages. Comments about message content should be directed to the relevant mailing list.