Automatic Volume Leveling (AVL)

Billy Mays is the Worst A..hole of all.I was watching Gunsmoke (in limey land, it's Gun Law) on TV Land a few minutes ago.UP popped Billy Mays.I would like to ''POP that Cracker!!! cuhulin

Hell, I can't even find halfway complete information on XDS. I have some old PDF of a chapter of a book, but there's a whole lot missing.

That's funny, coming from the "Billy Mays" of Usenet. You should take your own medicine, Cracker.

There has been some but they required wiring inside the TV. There isnt much of a market for things like that.

Jimmie

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adjustvolumeincreases during commercials, but I am very surprised nobody ever

Devices have been around for years. I first started making my own when the cable company could not control the volume of different channels. Huge changes between channels. I also bought a couple devices over the years. One nice one had an adjustable compression switch. You can also route the audio through a VCR which has built in automatic level control. I built one unit with the standard level control chip, and a few more with led or lamps and light sensitive resistors.

greg

Can you please post a chip number for this.

Regards

Personally I'd rather have the level changes than put up with an automatic device pumping.

Normally a good unit has very little pumping. It depends on the material. Worse case is when there is a large change in hiss or noise. I also have a DBX device that can either increase levels changes or compress them. The best peak unlimiter type of device is a Pioneer unit I have. I have made peak unlimiters, but the Pioneer is the champ, but I never heard a Carver peak unlimiter. You can also put a peak unlimiter after a AVL device, but highly dynamic music can be anoying.

Most recently I have used an automatic volume control to play unmatched MP3's as a automatic DJ type of deal at parties. I could not have done it without editing all the MP3's. Sounds great as most music is a continious stream without many pauses, which can cause pumping.

greg

Absolutely bound to do so if it can react quickly enough for peaks. It will pump any background up and down. If it has a slow recovery time to avoid pumping then you'll be complaining about not being able to hear the quiet parts.

Indeed - and it shows up most on speech based progs like drama where there is often a reasonably constant background sound effect. Least on pop music. But most don't watch only pop music on TV. And those that do won't notice the ads being louder, because they won't be ...

So you're one of those the broadcasters cater for with Optimod type devices? I hate those things with a passion.

Glad I wasn't there. ;-)