You probably know this, but if one changes the header info in the
resource fork of the sound file to another number, when you drop the
file into a PT/Logic TimeLine, the playback rate is changed analogous
to slowing or speeding up tape speed. Here's the simple process from
the Soundhack manual
http://soundhack.com/SndHckDoc/EditConv.html#(Command%20-%20H)%20Header%20C=
hange...
This would be the closest process to changing "tape speed" I know
of. Its instantaneous, reversible and has no adverse affect on
quality. Rob D.
At 10:39 PM -0700 10/25/06, Lou Judson wrote:
>Dan, do you know a Mac audio program that will do varispeed? PT and
>Peak seem to just be able to change sample rates... not "tape speed."
>
>Lou Judson * Intuitive Audio
>415-883-2689
>
>On Oct 25, 2006, at 8:13 PM, Dan Dugan wrote:
>
>> If it was recorded too slow, both pitch and time should be
>> corrected--I don't know CEP either, but it might be called "varispeed
>> mode" or something like that.
>>
>> Also, doing that does much less damage to the audio. Time-stretching
>> has to deconstruct and reconstruct the audio radically. Simple speed
>> changing is just resampling.
>>
>> -Dan Dugan
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
--
Rob Danielson
Peck School of the Arts
University of Wisconsin-Milwaukee
http://www.uwm.edu/~type/audio-art-tech-gallery/
|