[sdiy] phase shift

[Ken Stone]

If the phase of each harmonic is to remain intact relative to the other
harmonics, right throughout, it would a case of using a delay.

Another posibility is to use a phase shift network as per a dome filter and
mix differing proportions of the two outputs to get a 0 to 90 degree shift.

All pass filters will not work.

Ken

>is it possible to design a circuit that can variably shift the phase of a 
>(complex) input signal, while retaining the highest quality/integrity of 
>the signal? by this i mean turning one pot that shfts the entire signal 
>forward in time up to 180 (or more) degrees (or perhaps measured in tenths 
>of a microsecond instead of degrees). would it be based on some kind of an 
>all-pass filter, or some kind of delay circuit, or ??
>
>mark 
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au  
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