Slow Motion Recording

Stacy wrote:
>> If you want to vary the speed of more general signals, like music, try 
>> http://www.dspdimension.com/category/tutorial/
>>
>> Steve
> 
> 
> Jerry also recommended the above mention site. It seems like the buzz word
> is "Time streching" rather than slow motion. At least I now know the
> correct terminology in what I am trying to accomplish. Thanks. 
> 
> The phase vocoder seems to be a candidate for my design.
> 
> "dspdimension" gives some code for pitch shifting. It is not what I
> originally asked for. Nevertheless, I am currently working with it. On the
> other hand, writing Time Streching code is going to be more challenging.

It's the same code, with a trivial step removed. To stretch the time, 
you reduce the playback rate (which shifts the pitch down) then shift 
the pitch up to compensate.

Jerry
-- 
Engineering is the art of making what you want from things you can get.
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