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Re: Speed Vision Audio

To: "team.net list" <autox@autox.team.net>
Subject: Re: Speed Vision Audio
From: Matt Murray <mattm@optonline.net>
Date: Tue, 16 Mar 2004 15:51:03 -0500
More than likely, it is not something that a network can control.
Start looking to see if the spots that are "louder" are an
advertisement for your local business and not a national spot. I
would suspect the louder ones are local spots. they are inserted
at the head end of your cable system. It is known as a "local
avail" where a tone(s) is/are sent out on an audio channel that
is not broadcast on the cable system (the tones are DTMF = Dual
Tone Multi Frequency). Those tones tell the playback machine/deck
to roll and the equipment to cut into the satellite feed and send
out the local spot. Another set of tones tells the system to
return back to the net feed, too. So those local ads are made and
recorded by the local cable co. The playback decks also have
their own audio levels. So by the time this makes it into your
TV, the audio level *may* changed by the time you hear it.  :^)

That being said, the entire audio path from the network broadcast
operations has both compression and limiting on the audio. The
spots themselves sometimes also have limiting and compression, it
sort helps create the "wall of sound." So when you switch from
just a voice or dialog, and go to full orchestration, voices and
other stuff, it has the apparent feel of being louder. Okay, I've
probably lost a bunch of you by now, unless, of course, you're
the ones who see my name and or email addy and just delete
anyway.  :^)

Matt Murray


----- Original Message ----- 
From: "adam popp" <raft321@fuse.net>

> The message below was sent about a week ago but I put off
replying to until
> now. The Speed Channel's music or ambience(backround noise)
doesn't bather me,
> Kevin. But what does bather me a little bit is that the Speed
Channel's audio
> seems louder than any other channel especially when it's
commercial time.  To
> bad Matt Murray isn't there anymore to turn the audio down a
little bit for
> all the time,so we don't have to do it ourselves.lol....That's
it for now, I'm
> out.






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