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Re: [Doepfer_a100] A-130 oddity / R2M oddities

2006-07-24 by Florian Anwander

Hi Michael

> The first one concerns an A-130 linear VCA: It inverts the incoming
> signal! If I patch an ADSR or LFO into the Audio In, the output signal
> is an inverted variant of the input. Is this common behaviour, a
> faulty unit or something else? And what could I do against it?
I don't have the schematics here, btu as far as I remember, the A-130 
does invert the signal in fact. As far as I know the A-132 is not inverting.

> Furthermore. I've got two problems with the R2M:
> - It doesn't output a CV2 (the pressure sensor Output).
How are the settings in Menu 2 (MIDI-Settings), Page 1 and Page 2?
Page 2 MUST be set definitely to something else than "off".


> The second problem is concerning the CV1:
> I patched the output of CV1 directly to the 1V/O input of my A-111 and
> patched the sine out directly to the mixer: And there is an annoying
> crackling sound I hear. I played around a bit, tried the other A-111
> and the M15. On all the same. As long as I keep the finger on the
> ribbon, there's this crackling sound. When nothing touches the ribbon,
> it sounds clean. Is this normal behaviour of the R2M or did I just get
> a bad unit or something?
> I uploaded a sample of the "crackling sine wave":
> http://wasted.ch/mw/r2m_clicking.flac (around 500 K, FLAC audio file)
My system does not know this file format. You should try something more 
conventional, like mp3 ;-)

But your description sounds like either your retrigger time is set 
wrong, or the MIDI-1 mode is "note only" (without pitchwheel).

For standard ribbon stylee you have to use note+pitchwheel absolute.

Florian

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