[DECtalk], Re: dectalk in mp3 format

  • From: "Jayson Smith" <ratguy@xxxxxxxxxxxxx>
  • To: <dectalk@xxxxxxxxxxxxx>
  • Date: Mon, 9 Aug 2004 22:31:10 -0400

Hi,
Ok, here is probably how you might turn a Dectalk project into the finished
product.
1.  Create the performance, with separate text files for each part Dectalk
is to sing or whatever.
2.  Use the speak43 application to convert each of these files into its own
wav file.  Choose 11025, 16 bit.
3.  Listen to each of the converted files.  Look out for any garbage spoken
or sung at the end of each file.  Sometimes this happens.  If it does,
simply delete that portion of the wav file(s) in question.
4.  Open each of your new wav files up in Soundforge.  Hit Process,
Resample.  Convert to 44100 sampling rate, and make sure the anti-aliasing
filter is on.  Save each newly resampled file, possibly under a different
name or in a different directory.
5.  I don't know how you use Ntrack, but start a new project and put each of
your newly resampled wav files on its own track.  Make it so that all tracks
play.
6.  Listen to the performance as a whole.  There will likely be some
distortion or clipping.
7.  Turn down the volumes of all tracks to a uniform level if desired.  What
you're looking for is a level where no clipping occurs.  Keep adjusting and
playing until you achieve this.
8.  Add any special effects.  Reverb, panning, chorus, you name it.
9.  Check for clipping after you add any special effects.  If required,
adjust volumes until it goes away.
10.  Just to be on the safe side, save your finished project in whatever
format Ntrack uses so you can come back and make changes later.
11.  Mix down the finished product to a .wav file or use Ntrack's MP3
convertor to convert it to mp3.
12.  Run this finished .wav file through a Normalize command, such as
Soundforge.  This should raise the volume of the finished product to the
maximum possible without clipping.
13.  You should now have a finished product ready to upload or do whatever
you want with!  Congratulations!
If you have any further questions, let me know.  Hope this helps!
Jayson.

----- Original Message -----
From: "Nick Gawronski" <nick@xxxxxxxxxxxxxxxxx>
To: <dectalk@xxxxxxxxxxxxx>
Sent: Monday, August 09, 2004 9:51 PM
Subject: [DECtalk], Re: dectalk in mp3 format


> Hi, ntrack is an accessible multi track editor http://www.ntrack.com
> My web page is at http://www.nickgawronski.com
> ----- Original Message -----
> From: "Jayson Smith" <ratguy@xxxxxxxxxxxxx>
> To: <dectalk@xxxxxxxxxxxxx>
> Sent: Monday, August 09, 2004 8:49 PM
> Subject: [DECtalk], Re: dectalk in mp3 format
>
>
> > Hi,
> > I'm not familiar with Ntrack.  What's that?  I do have Soundforge 6.  It
> has
> > a good sample rate convertor.  Go into the Process menu, Alt+P, then hit
> the
> > s key for resample.  Hit tab once and there's an edit spin box for the
> > sample rate.  Tab twice and there's a check box for using an
anti-aliasing
> > filter.  Be sure this is checked.  Then hit Enter and it should do it.
If
> > you check the box to set sample rate only and not resample, it will
simply
> > change the sample rate in the file header, but won't change any of the
> data.
> > This would be good for quickly speeding up or slowing down audio.
> > Jayson.
> >
> > ----- Original Message -----
> > From: "Nick Gawronski" <nick@xxxxxxxxxxxxxxxxx>
> > To: <dectalk@xxxxxxxxxxxxx>
> > Sent: Monday, August 09, 2004 7:29 PM
> > Subject: [DECtalk], Re: dectalk in mp3 format
> >
> >
> > > Hi, I use soundforge 6.0 for single track editing and ntrack for multi
> > track
> > > editing will these tools work ok?  bye
> > > My web page is at http://www.nickgawronski.com
> > > ----- Original Message -----
> > > From: "Jayson Smith" <ratguy@xxxxxxxxxxxxx>
> > > To: <dectalk@xxxxxxxxxxxxx>
> > > Sent: Monday, August 09, 2004 6:13 PM
> > > Subject: [DECtalk], Re: dectalk in mp3 format
> > >
> > >
> > > > Hello,
> > > > This answer will be brief, as I don't know how knowledgable you are
in
> > the
> > > > field of audio editing, what software you have available to you,
etc.
> > If
> > > > you'd like a more detailed letter please let me know, and also tell
me
> > > what
> > > > you have at your disposal.  Also, anybody else who has other tips,
or
> a
> > > > better way to do it, please feel free to chime in!  This is an often
> > > > overlooked part of creating a Dectalk performance, and it wouldn't
> hurt
> > to
> > > > get a discussion going and get a few good tips!
> > > > Ok, I'm assuming you're using the speak43 application, telling it to
> > > convert
> > > > to .wav files.  As far as I know, the highest quality you can get
from
> > > > speak43 itself is 11025 sampling rate, 16 bit.  You want that.  I
also
> > > > assume you're trying to do something like make Dectalk sing in
> harmony,
> > a
> > > > round, etc.  If so, then you'll have to have one file for each part
of
> > the
> > > > song and convert them to separate wav files, or that would be the
> > easiest
> > > > route anyway.  After that, you'll want to mix them of course to
create
> > > what
> > > > will probably be close to the finished product.  On some sound
cards,
> > > lower
> > > > sample rates produce a slight hissing sound, and on some those
sample
> > > rates
> > > > even cause aliasing.  Aliasing is the introduction of unwanted high
> > > > frequencies into the audio, which weren't in the original product.
> This
> > > is
> > > > caused by quick and dirty sample rate conversions among other
things.
> > > > Goldwave, for example, has a sample rate convertor but if you use it
> to
> > > > upsample, that is, convert to a higher sample rate, you get
aliasing.
> > > Cool
> > > > Edit Pro at least, has a convertor which takes care of the aliasing
> > > problem
> > > > and you end up with a product which sounds almost, if not exactly,
> like
> > > the
> > > > original.  Because of various low sample rate issues, I always
> upsample
> > my
> > > > stuff using Cool Edit Pro, usually to 44100, which is the standard
> > sample
> > > > rate for CD quality material.  Always keep it sixteen bit!  It
really
> > > > doesn't matter about mono Vs. stereo, but just remember to keep it
16
> > bit!
> > > > The reason is that once you convert to 8 bit, the extra precision of
> 16
> > > bit
> > > > audio is lost and you can't get it back again, not even by
converting
> it
> > > to
> > > > 16 bit audio again.  So here's what I do.
> > > > First I get all the wav files of all the parts to the song.  I then
> > > upsample
> > > > them using Cool Edit Pro.  Then I start a new project in Cakewalk
Pro
> > > Audio
> > > > 9.  I then put each of the newly upsampled wav files on its own
track.
> > > Any
> > > > time you mix audio together, you're bound to end up with some
clipping
> > or
> > > > distortion if you keep the volumes the same.  Because of that, I
lower
> > the
> > > > volume on all the tracks until there is no clipping.  Then I mix
that
> > down
> > > > to a new .wav file, then run that through a Normalize command, which
> > > raises
> > > > the total overall volume to the maximum possible without clipping.
> > > > Hope this helps!
> > > > Jayson.
> > > >
> > > > ----- Original Message -----
> > > > From: "Nick Gawronski" <nick@xxxxxxxxxxxxxxxxx>
> > > > To: <dectalk@xxxxxxxxxxxxx>
> > > > Sent: Monday, August 09, 2004 6:17 PM
> > > > Subject: [DECtalk], dectalk in mp3 format
> > > >
> > > >
> > > > > Hi, What is the best way to mix and convert dectalk stuff into mp3
> > > format?
> > > > > bye
> > > > > My web page is at http://www.nickgawronski.com
> > > > >
> > > > >
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