Variable clock speed controls during either playback or recording allows
the speed of conversion to be altered to control tempo. To vary pitch
you need to play with the audio waveform in real-time. Frequency
conversion up/down allows the pitch to be altered. Use both and you can
have Frank singing My Way in Mickey's voice with the song playing at the
original speed. Or you can have Franks voice stretching the song out a
couple minutes. Take a loot at a modern mixer panel and you will find
lot's of toys to "shape" the tone and tempo of the inputs and allow
everything to work.

Even a SoundBlaster card has the parts and software to handle it. Take a
look at the environmental sound adjustments sometime.

--
Steve W.

"John Fields" wrote in message
...
On Wed, 7 Jun 2006 14:09:19 -0400, "Steve W."
wrote:

They are only directly related if you are using speed control on tape
or
vinyl.
Both are independent for any other use. It is very easy to sped up a
song while keeping the pitch the same or to vary the pitch at the
same
speed setting. If it wasn't over half of today's "artists" would be
out
of work due to singing off key and off tempo.

---
Would you elaborate on how easy it is to accomplish, please?


--
John Fields
Professional Circuit Designer



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