Next up Radiograms?
 

Davey wrote:
On Sat, 17 Jan 2015 09:07:27 -0000
"Brian Gaff" wrote:

Black market Mercury? Just as well you did not store it in aluminium
cans then.
Even at school in the late 50s/early 60s, we could legally handle
mercury in class.
Brian


Including chasing it around the desktop with bare fingers. Imagine
that now.

We weren't allowed to drink it though, because of the cost.

Bill

Next up Radiograms?
 

In article ,
says...

As for starting in the centre, it was normal for professional
broadcast recordings, and I think early movie soundtracks, to use edge
and centre starts on altenate discs, so that the change in background
noise would be less noticeable.

I understood that they always played 'inside out'. The reasoning being that,
as the old shellac discs were likely to sustain damage mainly on the edges,
that any problems with needle skip or jump would only upset the lip sync at
the very end of the reel rather than all the way through.

--

Terry

Next up Radiograms?
 

On Sun, 18 Jan 2015 18:09:51 -0000, Terry Casey
wrote:


As for starting in the centre, it was normal for professional
broadcast recordings, and I think early movie soundtracks, to use edge
and centre starts on altenate discs, so that the change in background
noise would be less noticeable.

I understood that they always played 'inside out'. The reasoning being that,
as the old shellac discs were likely to sustain damage mainly on the edges,
that any problems with needle skip or jump would only upset the lip sync at
the very end of the reel rather than all the way through.

If you're talking about movie soundtracks you could be right, because
I have had no personal involvement with that, but I once knew someone
who had actually done sound recordings for radio using pairs of 17"
disc recorders, and he told me they did track alternate discs in
opposite directions because of the surface noise. They recorded 6
minutes per side, the first and last 2 minutes overlapping with
neighbouring discs to give time to synchronise them on prefade for
playback. We've come a long way since then.

Rod.

Next up Radiograms?
 

In article ,
says...

If you're talking about movie soundtracks you could be right, because
I have had no personal involvement with that, but I once knew someone
who had actually done sound recordings for radio using pairs of 17"
disc recorders, and he told me they did track alternate discs in
opposite directions because of the surface noise. They recorded 6
minutes per side, the first and last 2 minutes overlapping with
neighbouring discs to give time to synchronise them on prefade for
playback. We've come a long way since then.


I recently transcribed the contents of a classical magazine cover mounted CD
onto my mp3 player. One track was Elgar's Violin Concerto in B Minor. When I
played it I noticed that it was a mono recording then, towards the middle,
during a fairly quiet passage, heard the once familiar shsh - shsh - shsh
sound of a 78rpm record!

The recording is 13' 10" long and I've since replayed it about three times
but no way can I spot any of the joins!

--

Terry