[Dtb-talk] Converting tone indexed books to DAISY

[David B Andrews]

I know the tone can be detected.  Our programmer got it to work with
the A to D system we have developed as a part of our overall DAISY
setup, but it took him some doing.  I believe others, like RFB&D
have done it too.

Dave



David Andrews
Chief Technology Officer
Minnesota State Services for the Blind
2200 University Ave. W., #240
St. Paul, MN  55114-1840
(651) 642-0513  Office
(612) 730-7931  Cell
(651) 649-5927  Fax


>>> gkearney at gmail.com 12/28/2006 2:04 PM >>>
When I first started this I tried recording the fast forward speed.
It  
was too fast and resulted in poor quality recording I think 4X
would  
be as fast as I would ever care to go.

The problem with detecting the index tone is that it is placed over
 
the top of the recording. So it does not stand alone in the
recording  
as a tone but rather is mixed in with the normal narration. It is
easy  
to see on the display but would be hard to detect with a program as
 
each tone would be mixed in with different narration.

Greg Kearney
On Dec 28, 2006, at 12:53 , Brett Winches wrote:

> I have a telex 6120 which will do 15 x but it also has inbuilt  
> processes
> to do on the fly conversions so that the original audio quality
is
> maintained.  This unit has a interface to let you drop files with
 
> index
> marks on them from hd to cassette and vis versa but I do not have
this
> software.  As this unit is no longer actively supported by TELEX
I do
> not intend to acquire the software for this purpose.  I have a
working
> relationship with our library for such conversion needs.
>
> BTW I do have the NLS standards for tone indexing around here  
> somewhere,
> (frequency, time duration, interval between tones etc.) but it
also  
> may
> be available on their website somewhere.
>
>
> Regardless this is a good trick.  Writing a subroutine to
automate the
> marking process should not be hard, but I do not know if studio 

> recorder
> code is available.
>
>
> BRETT WINCHESTER
> bwinches at icbvi.idaho.gov 
> -----Original Message-----
> From: dtb-talk-bounces at nfbnet.org
[mailto:dtb-talk-bounces at nfbnet.org] 
> On Behalf Of Irwin Hott
> Sent: Thursday, December 28, 2006 12:23 PM
> To: Discussion of Digital Talking Books
> Subject: Re: [Dtb-talk] Converting tone indexed books to DAISY
>
> There are cassette decks that will play at 3 & 3/4 IPS, but I
would
> suspect that the loss in quality at recording 4 times the normal
speed
> would be significant.
>
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