It gives you compressed speech, where the pitch remains unaltered but 
the voice is accelerated.

Dean
At 12:06 PM 8/7/2006, you wrote:
>What does this give you?  Compressed speech or sped up speech with 
>pitch rising?
>Thanks.
>
>   ----- Original Message -----
>   From: Dean Martineau
>   To: PC audio discussion list.
>   Sent: Monday, August 07, 2006 1:07 AM
>   Subject: How to use speech compression on multiple files in 
> Goldwave (was) Flash audio player recommendation and increased playback speed
>
>
>   I apologize that this request for information has fallen through 
> the cracks.
>
>   As I mentioned, you can, if you want, speed up playback of audio
>   files.  You can do this with individual files using Studio Recorder,
>   and with Goldwave and Sound Forge you can process one file at a time
>   or a batch of files.  I do not have Sound Forge 8 which has batch
>   conversion built in, so I'll concentrate on Goldwave 5.x which I do
>   have and know how to use.
>
>   In order to batch process files using Goldwave, you first have to
>   establish a preset for the speed you want to attain.  The dialog for
>   changing speeds on sound files is called Time Warp, and it is off the
>   Effects menu.  the quickest way into it is alt-c, w.
>
>   I can't remember which presets come shipped with the program and
>   which I've made.  For our purposes, we'll make a new one.
>
>   Goldwave has three ways to speed up playback.  the one you want to
>   use is Similarity.  It takes a lot of processing power but seems to
>   me to give the best results.  the dialog has three tabs, one for each
>   of those procedures.  When you are focused on the list of presets,
>   first down arrow to select the preset named '200 per cent via
>   Similarity." (I'm almost positive that preset comes shipped;
>   modifying it as needed is the easiest way to get our results.)
>
>   There are three settings to adjust.  We'll move backwards through the
>   dialog to get to them.  Shift-tab once to get to the 'search
>   range.'  chris, the author, recomments 5 to 10; I use 10.  shift-tab
>   again to window Size.  For voice, he recommends 20 to 30; I use
>   30.  Shift-tab twice, to get past the tabs for the three algorighms,
>   and you come to the Specify New Relative Change dialog.  Here you'll
>   specify a percentage.  Let's say we want a 75% increase, we would
>   specify 175 per cent.  (If you shift-tab once more, you can change
>   the dialog so that you input an exact length, not a
>   percentage.)  Once these values are set, tab forward to the combo
>   edit box containing the presets and type in a name for the new one
>   you've created.  Tab to the Add Preset button and hit space;
>   henceforth, it will be part of the available stock of presets.  You
>   can, as with all these dialogs off the Effects menu, tab once more to
>   preview your work on an open file; tab once more to the stop button
>   to silence the preview.
>
>   Now you've got at least one useful preset, and with it you can speed
>   up playback of open files individually.  to do more than one at a
>   time, we need the Batch Conversion utility, alt-f, b from the file
>   menu even if no files are open. Here, you land on the Convert
>   tab.  Tab once, or alt-a, to open the Add Files dialog.  Add one or
>   more files and hit enter when done.  You can repeat the process as
>   many times as needed, and review the list of files as it grows if you
>   want to.  In here you can also hit alt-d to add a folder.  Once all
>   files have been added, tab until you hear 'Convert Tab,' then right
>   arrow.  this puts you on the Process Tab, where we'll tell the
>   program what effect(s) we want to add to have applied to the
>   batch.  Tab once to the Add Effect button and hit space.  You are
>   placed on a tree view whose items correspond to the items on the
>   Effects menu.  Since we want Time Warp, hit t. Once time Warp is
>   highlighted, hit right arrow to expand the branch.  Now magically
>   appear all the presets that exist for time Warp.  choose the one you
>   want and hit enter.  You'll see in the list of effects that it 
> has been added.
>
>   Note that if you have different combinations of operations you want
>   to perform on files, for example, some files you'll play faster than
>   others, you can avoid having to venture into the Process tab again by
>   setting presets on the Convert tab.  that way, you will simply add
>   the desired files, choose the desired preset, and hit alt-b to press
>   the Begin button.
>
>   More can be done in this dialog, but this covers how to use it to
>   speed up playback on multiple files.  I hope this has been clear.
>
>   Dean
>
>
>
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