Re: Compander?

Question

These things have been around for years. Since I have moved Idon't yet have the stereo hooked up. All you do is install a automaticvolume controller. I have made a few. You can use a VCR.I didn't notice much of a problem but the volume changes on commercialis really bugging me since I bought a LCD TV and new cable box.Here is whats currently available..................

GregS · Accepted Answer

Some time ago i had at least one volume controller hooked up. I was still getting volume changes especially noticable during football games. I later found out my Hughes SRS had that problem and stopped using it. Its also possible some other expansion devices make volume changes along with normal program material.

greg

Jim Thompson · Answer

wrote:Greg, Have you used that device?                                        ...Jim Thompson-- | James E.Thompson, P.E.                           |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |              I love to cook with wine     Sometimes I even put it in the food

GregS · Answer

Not that specifically. I have bought two devices from MCM over the years and I don't have the companies on hand. Prices used to be up to $100. One was better, I liked, because it had two settings of compression. One was 10 dB and another of 20 dB. I have made some using leds and photocells. I also made one using one of the chips NE 572 I have seen good reviews of the Terk.

greg

Jim Thompson · Answer

wrote:$26 at Amazon!  At that price it's worth the experiment.  And Amazonis easy to deal with if I decide to return it.                                        ...Jim Thompson-- | James E.Thompson, P.E.                           |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |              I love to cook with wine     Sometimes I even put it in the food

GregS · Answer

I did say you can use a VCR. they have at least a 20dB range. I forget how I had mine hooked up. It may have to be record mode. They are everywhere. They all have built in limiting. Well I did have an old HiFi unit that you could select manual or auto control. It had lights, sliders, and buttons all over the place.

On the other end, I have also built some volume expanders. I also have a couple of units, and DBX and a Pioneer expansion unit. Great for FM which is compresed.

I found Amazon high on shipping.

greg

Jim Thompson · Answer

wrote:"Prime", 2-day shipping, free!                                        ...Jim Thompson-- | James E.Thompson, P.E.                           |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |              I love to cook with wine     Sometimes I even put it in the food

Bob Engelhardt · Answer

There are quite a few 1-star reviews there. Mostly "it died" & "it makes popping and/or hissing sounds".Definitely a good thing.Bob

Jim Thompson · Answer

Yep.  I read them all.Yup.  But the box 'looks' nice... I've been known to 'de-gut' andreplace ;-)(I've had lots of pointers/schematics, so I'm ready ;-)                                        ...Jim Thompson-- | James E.Thompson, P.E.                           |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |              I love to cook with wine     Sometimes I even put it in the food

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