RE: 78 transfers

[Shirli Sieb <sieb...>]

Hum on home recordings is the result of several common 
reasons.

1) The sources and levels aren't correctly matched: you're 
trying to record  from the speaker outputs as a source. 
Usually the speaker outputs are unsuitable as a recording 
source due to high noise and hum levels,  which is not normally 
heard in the speakers, but gets picked up by the sensitive 
recording input, (usually mic or line in, on a home system).

2) You are using the correct inputs and outputs: line-out to line-in, 
but there is a defect in your equipment, causing noise.

3) You are not using the proper cables, or poor cables, thus 
allowing hum (and other noise) to be induced into the
recording.

4) The turntable is not properly grounded to the amplifier or system,
and the sensitive pick-up is picking up induced noise.  

Sometimes, simply reorienting the turntable may eliminate the hum, 
which is caused by stray AC fields in your home.


If you think getting rid of hum in the home is a trick, try getting rid
of hum-induced "ground-loops" in the recording studio, or broadcast
studio.  I must spend about 1/3 of my time at my job, doing just that.
No joy, lemme tell ya!

Ed (the Broadcast Engineer) Sieb


> -----Original Message-----
> From: owner-jewish-music (at) shamash(dot)org
> [mailto:owner-jewish-music (at) shamash(dot)org]On Behalf Of Mattflight (at) 
> aol(dot)com
> Sent: Saturday, November 10, 2001 1:27 AM
> To: World music from a Jewish slant
> Subject: Re: 78 transfers
> 

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