Fw: simple schematics

[Roel Das]

I actually meant, when you use a pulse-waveform to clock the random
generator.
Why would you need a freq much higher than the audio range? (I realize that
the random generator will produce series of 2's and O's) Can't you just use
a VCO
tuned a few octaves higher with a pulsewave (I have built a working VCO a
few months ago)?

And, are these random generators available in logic components?

And second, would the up down counter be worth the trouble?


Thanks,
Roel
>
>>You get a "click"
>>
>>The clock rate has to be much higher than the audio range to get noise.
You
>can
>>play with the clock frequency to "tune" the noise... but if the clock rate
>gets
>>too low it sounds like a random series of clicks...
>>
>>:^) Harry
>>
>>Roel Das wrote:
>>
>>> I'd like to have some simple noise sources. I'm in this project i which
>we
>>> have to play a live soundtrack over a very old silent movie ('He who
gets
>>> slapped', 1920 or something? I don't remember). I'd like to build some
>>> simple modules to add some random noises in between melodic pieces. They
>>> don't have to be controllable, just very simple. And maybe a very basic
>>> mixer to get them on one channel. I don't have alot of time to build
them
>>> (from feb 5 to feb 20).
>>>
>>> And i've been playing with an idea. What sound do you get when you use a
>>> pulse to clock a pseudo-random generator (shift register with an exor or
>>> something like that)? And maybe connect this to an up down counter which
>you
>>> feed on the trigger to get symmetry?
>>>
>>> Thanks,
>>> Roel
>>
>>
>