hello tom,

i agree, regular bbd-gear with their associated
dull sound can be very appealing, even when used
with long delay times. the issue with the a188/1
and long delays is that the biggest bbd-ic for the
a188/1 has 2048 stages. bbd-ic's with more stages
are out of production, that's why other manufacturers
like blacet have already discontinued their bbd-modules.
by the way, the blacet time machine had 4096 stages,
making the module more suitable for longer delays,
on the other hand this module is not so good for
shorter delay times, which are necessary for
karplus-strong synthesis or flanging.
also the a188/1 goes beyond the capabilities of
other bbd-modules in terms of experimental sounds,
because the clock is not filtered out and because
the clock can run really slow. the feedback insert is
also a big plus. anyway, the standard analog delay
sound can be achieved with the a188/1 too,
you just need an additional lowpass filter,
controlled by the same cv source as the a188/1.

i bet you will be pleased by the a188/1, once again
this is a very rewarding module for experimentalists.

best wishes

ingo



--- In Doepfer_a100@yahoogroups.com , "thomasborax"
<thomasborax@y...> wrote:

>
> well, the dull squishy repeats of analog delays are their appeal

for

> sure, imo. i wondered about delay capabilities simply because it
> seemed geared more towards the very short delay times.
>
> even if it doesn't do nice regular stompbox type analog delay, i
> will still get this becuase it is affordably priced and seems

really

> wacky and lo-fi cool. i am a BBD freak.
>
> ___ToM
>
> --- In Doepfer_a100@yahoogroups.com , "selfoscillate"
> <synaptic_music@y...> wrote:
> >
> >
> > hello tom,
> >
> > yes, if you want to get rid of the clock noise, you
> > can simply patch a steep lowpass filter right after the bbd
> > and so you get a standard analog delay.
> > the problem is that the maximum delay time (and the possible
> > maximum frequency range of the signal) depends both on
> > the clock speed and the amount of stages in the bbd ic.
> > 2048 stages won't give you long clean delays anyhow.
> > for example, with a delay time of 400 ms the clock noise
> > is very audible and the delayed signal has not much in
> > common with the original anymore. thats why analog delays
> > are more used for flanging or chorusing, where delay times
> > are much shorter. of course you can use it for longer delays,
> > but you have to decide if you want the delay unfiltered
> > (full of artifacts and clock noise) or externally filtered
> > (no or only minor clock noise, but a dull sound).
> > usual analog delays have such a filter built-in, these
> > units always have a dull sound with longer delays.
> > all a188/1 example recordings so far are unfiltered and you
> > can clearly hear those artifacts at slow clock speeds.
> > if artifacts are ok for you (i love them), then you
> > will surely have a lot of fun with the a188/1.
> >
> > best wishes
> >
> > ingo
> >
> >
> >
> >
> > --- In Doepfer_a100@yahoogroups.com , "thomasborax"
> <thomasborax@y...>
> > wrote:
> > >
> > > so, in your tests, would you say a reasonable analog delay is
> > > possible or would there need to be additional chips in the
> delay
> > > line and filters to filter the clock out
> > >
> > > i'm a lo-fi kind of guy, so the grease and noise of BBDs are

not

> a
> > > deterrent but rather a plus.
> > >
> > > -t
> > >
> > > --- In Doepfer_a100@yahoogroups.com , "selfoscillate"
> > > <synaptic_music@y...> wrote:
> > > >
> > > >
> > > > hello tom,
> > > >
> > > > basically the only difference is the possible minimum/maximum
> > > > delay time. the bbd with 1024 stages offers shorter delays
> > > > than the 2048 stages version. i cannot say much about the
> > > > maximum delay time, because with long delay times you will
> > > > hear the clock noise and i assume that you don't
> > > > want this to happen with slapback delays.
> > > >
> > > > best wishes
> > > >
> > > > ingo
> > > >
> > > >
> > > >
> > > > --- In Doepfer_a100@yahoogroups.com , "thomasborax"
> > > <thomasborax@y...>
> > > > wrote:
> > > > >
> > > > > hello ingo and others-
> > > > > could you describe to me in more detail than is available

on

> > the
> > > > > doepfer webpage what the differences, advantages and
> > > disadvantages
> > > > > would be between the two different bbd ics
> > > > >
> > > > > i prefer a longer delay time, as i would use a slapback

and

> or
> > > > > reverb/delay effect more than i would use chorus.
> > > > >
> > > > > your sound files were helpful, thank you.
> > > > >
> > > > > ---tom
> > > > >
> > > > > --- In Doepfer_a100@yahoogroups.com , "selfoscillate"
> > > > > <synaptic_music@y...> wrote:
> > > > > >
> > > > > >
> > > > > > hello all,
> > > > > >
> > > > > > first, a merry christmas to everybody :-)
> > > > > >
> > > > > > the a188/1 is a very exciting module, especially
> > > > > > because it is not limited to standard flanger,
> > > > > > chorus or reverb effects.
> > > > > >
> > > > > > i have prepared some examples, recorded directly from the
> > > > > > output jack of the prototype (using a 1024 stages bbd

ic).

> > > > > > sorry for the brief descriptions.
> > > > > > oh well, it's christmas... :-)
> > > > > >
> > > > > > 1.
> > > > > > karplus-strong synthesis, based on the example patch
> > > > > > as published on the doepfer homepage. this is an
> > > > > > example for plucked sounds.
> > > > > >
> > > > > > http://www.selfoscillate.de/a100files/a188-1-karplus-
> pluck.mp3
> > > > > > file size: 195 kb
> > > > > >
> > > > > > 2.
> > > > > > a single a110 sawtooth through the a188/1, delay time
> > modulated
> > > > > > by a triangle lfo.
> > > > > >
> > > > > > http://www.selfoscillate.de/a100files/a188-1-sawplus.mp3
> > > > > > file size: 210 kb
> > > > > >
> > > > > > 3.
> > > > > > a single a110 squarewave through the a188/1,
> > > > > > no delay time modulation, but obscure parameter values ;-

)

> > > > > >
> > > > > > http://www.selfoscillate.de/a100files/a188-1-spooky.mp3
> > > > > > file size: 301 kb
> > > > > >
> > > > > > 4.
> > > > > > this is a self-oscillating a188/1, the module gets no
> > > > > > audio input. the delay time is modulated by an a149/1.
> > > > > >
> > > > > > http://www.selfoscillate.de/a100files/a188-1-selfplay.mp3
> > > > > > file size: 295 kb
> > > > > >
> > > > > > 5.
> > > > > > now my favorite. a drum pattern coming from a tr808
> > > > > > is fed into an a119 and from there into the a188/1.
> > > > > > the a119 env output is fed into the a188/1 cv in 2.
> > > > > > both delay time and cv 2 polarizer knobs were slowly
> > > > > > adjusted by hand during recording, to give an idea of
> > > > > > the sonic potential. in the beginning it sounds like
> > > > > > flanging, with decreasing clock frequency it falls into
> > > > > > a mixture of granular synthesis and bit-reduction.
> > > > > > the signal seems to fall apart and then rebuilds under
> > > > > > rhythmic control of the 808 signal level.
> > > > > > halfways through the recording the a188/1 audio input
> > > > > > attenuator is turned further clockwise for some
> > > > > > overdriven sounds.
> > > > > >
> > > > > > http://www.selfoscillate.de/a100files/a188-1-follow-the-
> > 808.mp3
> > > > > > file size: 2110 kb
> > > > > >
> > > > > > have fun everybody :-)
> > > > > >
> > > > > > best wishes
> > > > > >
> > > > > > ingo
> > > > > >
> > > > >
> > > >
> > >
> >
>