[AH] Red noize

[harrybissell at prodigy.net]

Im not sure I understood...

1) The all zero's state is disallowed... I have an RC filter that will throw a "1" in the register when that occurs... and it DOES (every three hours or so...) I have never heard it... but it MUST !!!

2) I don't get the BBD idea... you mean so you can change the clock rate??? you can do that with the shift register also... This is part of the Blacet "Dark Star" chaos generator... the SN78477 does it this way.

3) Sorry... I think a BBD might be not good even for NOISE generation... 

H^)


 ---- On Feb  7 Martin Czech <martin.czech at intermetall.de> wrote: 
> 
> :::If I follow this the 2^(n-1) frequencies is where n is the number of stages 
> in the
> :::register.
> :::I have a 31 stage shift register so that would be 2^30. Thats enough 
> frequencies for
> :::my hearing... I have never had a hole in even the most agressive bandpass 
> filter...
> :::
> 
> It's (2**N)-1, you have 2**N combinations, but 0 has to be avoided,
> this will trap you, false state...
> 
> Using small N will give a harmonic wave. This is interesting, the
> borderline between noise and harmony....
> 
> Is there possibly shitdf registers with the same tap configuration,
> but different length? I have to check the tables.
> Because in this case one could think of using a voltage controlled
> delay line instead, voila, voltage controlled cycle time.
> 
> I think everone with a BBD delay could try this, convert the output
> to logic levels, scramble XOR, and feedback to input after scaling.
> How does it sound? I unfortunetaley have no BBD delay.
> 
> I think BBD noise will be NO issue in this case ;_>>>
> 
> 
> m.c.
> 
>