Article View: sci.electronics
Article #20367Re: Optimod: how does it work ?
From: Steve Sykes
Date: Mon, 09 Jan 1989 00:17
Date: Mon, 09 Jan 1989 00:17
22 lines
1727 bytes
1727 bytes
In article <1561@kulcs.kulcs.uucp> marc@kulcs.uucp (Marc Van Barel) writes:
>Here in Europe, more and more radio and TV-stations are using a device
>called "Optimod" for improving sound modulation. It's produced by an
>American company called "Orban". Using this device, the audio signal
>seems to have more loudness. Does anybody on the net know how this
>works ? Is it just some smart compression/limiting of the dynamic
>range of the audio signal or is there more to it ?
Optimods are just pretty smart compressor limiters. They have 6 band
compression and wideband limiting + filtering too. The idea is to
get the carrier as modulated as possible for as much of the time as
possible, if you see what I mean. Orban make a version for use on
AM (good), one for FM (bad), and for TV (don't know, but probably
ugly). If you want an FM processor, Inovonics is a good bet.
+++++
ljc@uk.ac.ucl.mssl.a - BBC
haldane@uk.ac.warwick.cs - Mercia Sound
UUCP: ...!mcvax!ukc!warwick!haldane | Have you hugged your
JANET: haldane@uk.ac.warwick.cs | radio today?
ARPA: haldane@cs.warwick.ac.uk |_____________________________
Steve Sykes, Computing Dept, Warwick University, Coventry CV4 7AL, England
Technical Details
Message-ID:
<890@ubu.warwick.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!warwick!haldaneReferences:
<1561@kulcs.kulcs.uucp>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!warwick!haldane From: haldane@warwick.UUCP (Steve Sykes) Newsgroups: sci.electronics,rec.ham-radio Subject: Re: Optimod: how does it work ? Keywords: radio modulation Message-ID: <890@ubu.warwick.UUCP> Date: 9 Jan 89 00:17:17 GMT References: <1561@kulcs.kulcs.uucp> Sender: news@warwick.UUCP Reply-To: haldane@uk.ac.warwick.cs (Steve Sykes) Organization: Computer Science, Warwick University, UK Lines: 22