hello ingo,
once again, many thanks for your great and helpful
audio clips!
best regards,
bakis.





--- selfoscillate < synaptic_music@... > wrote:

>
> hello all,
>
> the following example shows the sonic differences of
> filtered and unfiltered clock noise in a bbd module.
>
> this example is taken from the a188/1 prototype
> with 2048 stages ic.
>
> a small repeating sequence is running through
> the a188/1. you hear the pure bbd output without
> the original signal (this way the effect can be
> recognised best). first comes the unfiltered a188/1.
> the clock is swept from high speed to very
> low speed and then again back to high speed.
> after that you hear the same sequence/sweep,
> but now the a188/1 output is filtered by an
> a108 lowpass (48 db output). the a108 is swept with
> the
> same voltage as the a188/1. i have carefully
> adjusted
> the filter to make sure that it closes only as much
> as necessary to suppress the clock noise.
>
> in the first part the clock noise can be heard loud
> and clearly as the clock slows down. the signal
> falls
> apart and is full of aliasing, sounding somewhat
> like a
> bit reduction effect. this is for the
> experimentalists :-)
> in the second part the clock noise is filtered out
> and
> therefore the typical "dulling effect" of a common
> analog delay occours. this is for those who want
> that
> lush warm retro-sound :-)
>
>

http://www.selfoscillate.de/a100files/a188-1-filtered-clock.mp3

> file size: 833 kb
>
> best wishes
>
> ingo
>
>
>
>
>
>
>

Bakis Sirros - Parallel Worlds
1 group owner
http://www.parallel-worlds-music.com
http://www.shimarecords.co.uk
http://www.rubber.gr
Athens-Greece



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