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Old May 12th 04, 08:06 PM
Ron Hardin
 
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Default New Audio AGC

Terk has a reasonable bandwidth stereo audio AGC box, the VR-1
``TV Volume Regulator'' that solves one problem I was having, of
getting an automatically correct record level when things turn on
when I'm not around.

RCA phono pair in and out, wall wart (I think 9v but it's out of
sight now).

J&R discounts it a little. I paid $40.

It works fine. It seems to leave alone things quieter than
some fraction of standard line level (so you don't get infinite
gain on silence) and adjust to a reasonable level for several dB
above what it wants to put out. There's no obvious AGC sound
to it. It just sort of comes out the right level.

You adjust the amplifier you feed its output into to get the volume
you want always.

Works for me. I haven't tested its hi-fi ness, but it's much
wider band than SW or MW recording needs.

http://www.jr.com/JRProductPage.proc...uct_Id=3673109


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Ron Hardin


On the internet, nobody knows you're a jerk.
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Old May 12th 04, 08:14 PM
Ron Hardin
 
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Ron Hardin wrote:
Works for me. I haven't tested its hi-fi ness, but it's much
wider band than SW or MW recording needs.


Although, to be honest, I detect a slight detuned-FM fuzz sound to its
output. You notice it after a while. Flip on the bypass switch, and
the sound clears up. Not bad, but it's there.
--
Ron Hardin


On the internet, nobody knows you're a jerk.
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Old May 12th 04, 08:30 PM
Ron Hardin
 
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Ron Hardin wrote:

Ron Hardin wrote:
Works for me. I haven't tested its hi-fi ness, but it's much
wider band than SW or MW recording needs.


Although, to be honest, I detect a slight detuned-FM fuzz sound to its
output. You notice it after a while. Flip on the bypass switch, and
the sound clears up. Not bad, but it's there.


AHA, it's a sampling interaction with the Timewave 599ZX DSP that's
feeding it. If I bypass that DSP, the sound sounds fine.
--
Ron Hardin


On the internet, nobody knows you're a jerk.
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Old May 13th 04, 06:12 AM
Paul_Morphy
 
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"Dan" wrote in message
...


DVDs have a great picture, but they have crappy sound.


I think it's more that they have good audio dynamic range. In the theatre,
the loud sounds do blow you out of your chair. It's part of the American
will to deafness, also exempified by 'hip hop.' :

"PM"


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Old May 14th 04, 08:04 AM
WShoots1
 
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One time I went to see one of those WWII movies made in the 1970s. It opened
with B-25s warming up on a carrier deck, getting ready for the Tokyo raid.

Having flown in the things, it sounded so realistic that I just sat back in my
chair and went Ahhh....

Then they turned on that damned Surround Sound, causing me to jump up in my
seat and cover my ears.

From what I've experienced, the extremes have nothing to do with dynamic range.
It's that anything dubbed in like music seems much louder than the rest of the
sound.

That reminds me of reading that Charles Bronson once said that if music is
needed to turn on the appropriate emotions, then the script is crappy. G

Bill, K5BY


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Old May 14th 04, 03:50 PM
lsmyer
 
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I'm such a child of 70s AM that I can't listen to music without processing
it to death.

I downloaded Ots Juke and play my MP3's through it. It's got an excellent
dynamic processor built in. I use the "radio" preset, but I boost the input
gain all the way up to +18dB and the output gain all the way to 0dB.

It brings the last "Heaven" right up to full volume! Gotta love compression!


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Old May 15th 04, 05:06 AM
WShoots1
 
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Ismyer: I'm such a child of 70s AM that I can't listen to music without
processing it to death.

I remember those days. Should there happen to be a microsecond of dead air
time, I could hear the uprush of the studio's a/c fans. LOL

I recall an audio demo a friend showed me one time. When he talked, the VU
meter wiggled at about the same place. When I talked, the meter swung wildly.
That explained why his 50 watt ssb signal sounded as strong as my 1 kW. He was
born with audio processing. LOL

We had similar antennas and lived only a few miles apart.

Bill, K5BY
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