[music-dsp] Frequency Shift by Complex Exponential - Resolving Real Signal

Bob M bobm.dsp at gmail.com
Mon Feb 7 13:49:29 EST 2005


Robert,

Thank you very much, I now understand. BTW, your post serves as a
blunt reminder that I ought to go back and review some of the basics
from a past college DSP class.

Thanks,
Bob

On Mon, 07 Feb 2005 13:33:47 -0500, robert bristow-johnson
<rbj at audioimagination.com> wrote:
> that's a purely real implementation.  you need to generate these precise
> quadrature sinuosoids and implement an approximation to a Hilbert
> transformer.  the H.T. will have a known built in delay so x(t) will have to
> be delayed by the same amount before both are multiplied by their respective
> sinusoids.
> 
> > Thanks,
> 
> FWIW.
> 
> --
> 
> r b-j                  rbj at audioimagination.com
> 
> "Imagination is more important than knowledge."
> 
> --
> dupswapdrop -- the music-dsp mailing list and website:
> subscription info, FAQ, source code archive, list archive, book reviews, dsp links
> http://shoko.calarts.edu/musicdsp
> http://ceait.calarts.edu/mailman/listinfo/music-dsp
>



More information about the music-dsp mailing list