Date:         Sat, 19 Nov 2005 16:15:03 -0800
Reply-To:     [log in to unmask]
Sender:       Association for Recorded Sound Discussion List
              <[log in to unmask]>
From:         Eric Jacobs <[log in to unmask]>
Subject:      Re: 78rpm EQ and postprocessing
Comments: To: Association for Recorded Sound Discussion List <[log in to unmask]>
In-Reply-To:  <003b01c5ed63$05d27130$6401a8c0@tomofficenew>
Content-type: text/plain; charset=iso-8859-1

Works just fine!  Do this all the time on heavily damaged discs.

If there's valuable signal around 20 Hz (for example), then you need 
a cartridge that can faithfully reproduce 10 Hz, and is reasonable
flat in the low-end - otherwise you're going to get some low frequency
bumps that you may have to fix later.

But in some cases, half speed is the only way to play a damaged 
disc.

Eric Jacobs

The Audio Archive
tel: 408.221.2128
fax: 408.549.9867
mailto:[log in to unmask]



-----Original Message-----
From: Association for Recorded Sound Discussion List
[mailto:[log in to unmask]]On Behalf Of Tom Fine
Sent: Saturday, November 19, 2005 3:43 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] 78rpm EQ and postprocessing


This brings up another question: has anyone tried half-speed transfers of
78's, perhaps transferring flat, then "doubling" the speed in the digital
realm and then applying an EQ curve? Seems like this might have a lot of
benefits if it works.

----- Original Message ----- 
From: "Richard L. Hess" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, November 19, 2005 2:58 PM
Subject: Re: [ARSCLIST] 78rpm EQ and postprocessing


> At 02:39 PM 11/19/2005, John Ross wrote:
>
> >This raises another question: Is there any kind of software Out
> >There that can convert a sound file created through an
> >RIAA-equalized preamp to the correct equalizations for various types of
78s?
> >
> >Seems like this would offer a useful and cost-effective alternative
> >to using a preamp with options for 78s like the modern Elberg or
> >KAB, or vintage Scott or McIntosh gear.
>
> If it doesn't have all of the filter presets already loaded (which I
> think it does), they could be added to DC6.
>
> http://www.diamondcut.com/
>
> or
>
> http://www.tracertek.com
>
> Cheers,
>
> Richard
>
>
> Richard L. Hess                   [log in to unmask]
> Aurora, Ontario, Canada       http://www.richardhess.com/
> Detailed contact information: http://www.richardhess.com/tape/contact.htm