Doepfer

>
> Dear group,
> 
> Just like Bakis I want to wish you all a good 2012!
> 
> But now, something completely different.
> 
> When plugging in headphones in an audio out connector (VCA, mixer) I hear both the left and right channel.
> However, if I route the audio out through a multiples, the audio signal is halved, only the left channel is left.
> Is this caused by a difference in the audio out and multiples connectors?
> Hope someone can tell.
> 
> Warm regards,
> 
> Ton
>

>
> Hi Ton,
> 
>  
> 
> Happy New Year to you as well. Modular signals are generally mono. An
> oscillator generates one waveform, not two left and right ones and the
> following signal chain will thus also be in mono. 
> 
>  
> 
> York
> 
>  
> 
>   _____  
> 
> Von: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com] Im
> Auftrag von Ton Akveld
> Gesendet: Montag, 2. Januar 2012 11:34
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] HNY & do multiples halve the audio signal?
> 
>  
> 
>   
> 
> Dear group,
> 
> Just like Bakis I want to wish you all a good 2012!
> 
> But now, something completely different.
> 
> When plugging in headphones in an audio out connector (VCA, mixer) I hear
> both the left and right channel.
> However, if I route the audio out through a multiples, the audio signal is
> halved, only the left channel is left.
> Is this caused by a difference in the audio out and multiples connectors?
> Hope someone can tell.
> 
> Warm regards,
> 
> Ton
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> strange...
> usually modules use mono jack in and patching them with a stereo cable have no effect since there should be no connection (except for modules with a switch in the jack in to break normalled connection).
> 
> i have my external mixer bringing the mono-signal to L and R speaker.
> 
> i will have a try.
> 
> --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> >
> > Dear group,
> > 
> > Just like Bakis I want to wish you all a good 2012!
> > 
> > But now, something completely different.
> > 
> > When plugging in headphones in an audio out connector (VCA, mixer) I hear both the left and right channel.
> > However, if I route the audio out through a multiples, the audio signal is halved, only the left channel is left.
> > Is this caused by a difference in the audio out and multiples connectors?
> > Hope someone can tell.
> > 
> > Warm regards,
> > 
> > Ton
> >
>

>
> The sockets used by Doepfer aren't standard 3.5mm mono sockets (where no 
> real standard exists), but special sockets, where the ground contact is 
> more raised to the place, where on a stereo(=headphone) jack the "ring" 
> contact is. This is no problem with mono jack connectors, but can cause 
> unpredictable results with stereo jacks - especially as the 3.5mm or 
> 1/8" jack/socket system is not really normed.
> 
> Florian
>

>
> Hi Marco,
> 
> Thanks for thinking with me ;-)
> 
> You write: 
> > i have my external mixer bringing the mono-signal to L and R speaker.
> Does it still after routing through a multiples?
> 
> Love to hear!
> 
> Ton
> 
> 
> --- In Doepfer_a100@yahoogroups.com, "marco_zambardi" <marco.zambardi@> wrote:
> >
> > strange...
> > usually modules use mono jack in and patching them with a stereo cable have no effect since there should be no connection (except for modules with a switch in the jack in to break normalled connection).
> > 
> > i have my external mixer bringing the mono-signal to L and R speaker.
> > 
> > i will have a try.
> > 
> > --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> > >
> > > Dear group,
> > > 
> > > Just like Bakis I want to wish you all a good 2012!
> > > 
> > > But now, something completely different.
> > > 
> > > When plugging in headphones in an audio out connector (VCA, mixer) I hear both the left and right channel.
> > > However, if I route the audio out through a multiples, the audio signal is halved, only the left channel is left.
> > > Is this caused by a difference in the audio out and multiples connectors?
> > > Hope someone can tell.
> > > 
> > > Warm regards,
> > > 
> > > Ton
> > >
> >
>

>
> Hello Tony,
> 
> yes, my external line mixer (a behringer eurorack pro) get a mono signal (Left/Mono In used) and split it on my Left and Right monitor (of course there is no real stereo fx in this case, the same signal is brought to L and R).
> 
> this works both in case a multiple is used in patch and in case no multiple is used in the patch. but i always pass through a VCA (intellijel uVCA or Doepfer A-131 exp VCA) as last module before the mixer.
> 
> Marco
> 
> --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> >
> > Hi Marco,
> > 
> > Thanks for thinking with me ;-)
> > 
> > You write: 
> > > i have my external mixer bringing the mono-signal to L and R speaker.
> > Does it still after routing through a multiples?
> > 
> > Love to hear!
> > 
> > Ton
> > 
> > 
> > --- In Doepfer_a100@yahoogroups.com, "marco_zambardi" <marco.zambardi@> wrote:
> > >
> > > strange...
> > > usually modules use mono jack in and patching them with a stereo cable have no effect since there should be no connection (except for modules with a switch in the jack in to break normalled connection).
> > > 
> > > i have my external mixer bringing the mono-signal to L and R speaker.
> > > 
> > > i will have a try.
> > > 
> > > --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> > > >
> > > > Dear group,
> > > > 
> > > > Just like Bakis I want to wish you all a good 2012!
> > > > 
> > > > But now, something completely different.
> > > > 
> > > > When plugging in headphones in an audio out connector (VCA, mixer) I hear both the left and right channel.
> > > > However, if I route the audio out through a multiples, the audio signal is halved, only the left channel is left.
> > > > Is this caused by a difference in the audio out and multiples connectors?
> > > > Hope someone can tell.
> > > > 
> > > > Warm regards,
> > > > 
> > > > Ton
> > > >
> > >
> >
>

>
> Hi Marco,
> 
> Thanks for the description!
> I route my end signal through a multiples so I can send one to the di-box and amplifier and the other to the oscilloscope (see http://groups.yahoo.com/group/Doepfer_a100/photos/album/1838015066/pic/57965373/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc)
> 
> Regards,
> 
> Ton (when in Sicilia: Nino :-))
> 
> --- In Doepfer_a100@yahoogroups.com, "marco_zambardi" <marco.zambardi@> wrote:
> >
> > Hello Tony,
> > 
> > yes, my external line mixer (a behringer eurorack pro) get a mono signal (Left/Mono In used) and split it on my Left and Right monitor (of course there is no real stereo fx in this case, the same signal is brought to L and R).
> > 
> > this works both in case a multiple is used in patch and in case no multiple is used in the patch. but i always pass through a VCA (intellijel uVCA or Doepfer A-131 exp VCA) as last module before the mixer.
> > 
> > Marco
> > 
> > --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> > >
> > > Hi Marco,
> > > 
> > > Thanks for thinking with me ;-)
> > > 
> > > You write: 
> > > > i have my external mixer bringing the mono-signal to L and R speaker.
> > > Does it still after routing through a multiples?
> > > 
> > > Love to hear!
> > > 
> > > Ton
> > > 
> > > 
> > > --- In Doepfer_a100@yahoogroups.com, "marco_zambardi" <marco.zambardi@> wrote:
> > > >
> > > > strange...
> > > > usually modules use mono jack in and patching them with a stereo cable have no effect since there should be no connection (except for modules with a switch in the jack in to break normalled connection).
> > > > 
> > > > i have my external mixer bringing the mono-signal to L and R speaker.
> > > > 
> > > > i will have a try.
> > > > 
> > > > --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> > > > >
> > > > > Dear group,
> > > > > 
> > > > > Just like Bakis I want to wish you all a good 2012!
> > > > > 
> > > > > But now, something completely different.
> > > > > 
> > > > > When plugging in headphones in an audio out connector (VCA, mixer) I hear both the left and right channel.
> > > > > However, if I route the audio out through a multiples, the audio signal is halved, only the left channel is left.
> > > > > Is this caused by a difference in the audio out and multiples connectors?
> > > > > Hope someone can tell.
> > > > > 
> > > > > Warm regards,
> > > > > 
> > > > > Ton
> > > > >
> > > >
> > >
> >
>

>
> hi tony,
> 
> forgot to say, i am using Intellijel Buffered Multi, not the A-180.
> but from the DI then where you plug the signal?
> 
> --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> >
> > Hi Marco,
> > 
> > Thanks for the description!
> > I route my end signal through a multiples so I can send one to the di-box and amplifier and the other to the oscilloscope (see http://groups.yahoo.com/group/Doepfer_a100/photos/album/1838015066/pic/57965373/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc)
> > 
> > Regards,
> > 
> > Ton (when in Sicilia: Nino :-))
> > 
> > --- In Doepfer_a100@yahoogroups.com, "marco_zambardi" <marco.zambardi@> wrote:
> > >
> > > Hello Tony,
> > > 
> > > yes, my external line mixer (a behringer eurorack pro) get a mono signal (Left/Mono In used) and split it on my Left and Right monitor (of course there is no real stereo fx in this case, the same signal is brought to L and R).
> > > 
> > > this works both in case a multiple is used in patch and in case no multiple is used in the patch. but i always pass through a VCA (intellijel uVCA or Doepfer A-131 exp VCA) as last module before the mixer.
> > > 
> > > Marco
> > > 
> > > --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> > > >
> > > > Hi Marco,
> > > > 
> > > > Thanks for thinking with me ;-)
> > > > 
> > > > You write: 
> > > > > i have my external mixer bringing the mono-signal to L and R speaker.
> > > > Does it still after routing through a multiples?
> > > > 
> > > > Love to hear!
> > > > 
> > > > Ton
> > > > 
> > > > 
> > > > --- In Doepfer_a100@yahoogroups.com, "marco_zambardi" <marco.zambardi@> wrote:
> > > > >
> > > > > strange...
> > > > > usually modules use mono jack in and patching them with a stereo cable have no effect since there should be no connection (except for modules with a switch in the jack in to break normalled connection).
> > > > > 
> > > > > i have my external mixer bringing the mono-signal to L and R speaker.
> > > > > 
> > > > > i will have a try.
> > > > > 
> > > > > --- In Doepfer_a100@yahoogroups.com, "Ton Akveld" <aca@> wrote:
> > > > > >
> > > > > > Dear group,
> > > > > > 
> > > > > > Just like Bakis I want to wish you all a good 2012!
> > > > > > 
> > > > > > But now, something completely different.
> > > > > > 
> > > > > > When plugging in headphones in an audio out connector (VCA, mixer) I hear both the left and right channel.
> > > > > > However, if I route the audio out through a multiples, the audio signal is halved, only the left channel is left.
> > > > > > Is this caused by a difference in the audio out and multiples connectors?
> > > > > > Hope someone can tell.
> > > > > > 
> > > > > > Warm regards,
> > > > > > 
> > > > > > Ton
> > > > > >
> > > > >
> > > >
> > >
> >
>

On Jan 9, 2012, at 4:06 AM, yahoo@doepfer.de wrote:

>> Dear group,
>> 
>> Just like Bakis I want to wish you all a good 2012!
>> 
>> But now, something completely different.
>> 
>> When plugging in headphones in an audio out connector (VCA,
>> mixer) I hear both the left and right channel.
>> However, if I route the audio out through a multiples, the audio
>> signal is halved, only the left channel is left.
>> Is this caused by a difference in the audio out and multiples connectors?
>> Hope someone can tell.
>> 
>> Warm regards,
>> 
>> Ton
> 
> Also from me Best Wishes for the New Year!
> 
> The mechanical construction of monophonic 3.5 mm jacks and plugs is
> different from stereophonic versions. Parts of the long GND sector of the
> monophonic versions is used in the stereophonic versions as the second
> signal. It depends upon the mechanical tolerances and the plug-in depth what
> happens if a stereophonic plug is connected to a monophonic socket.
> Typically the second stereo signal will be dead as the corresponding sector
> of the plug is not connected or connected to GND (depends upon the
> mechanical details of the monophonic jack socket). But there might be an
> intermediate plug-in position where the monophonic signal appears on both
> stereo channels.
> 
> As there exists no technical specification that describes what happens if a
> 3.5 mm stereo plug is connected to a monophonic 3.5 mm socket you will have
> to try it out. In the A-100 two different 3.5 mm sockets are used (vertical
> and horizontal) and maybe they behave different.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>

>
> > Dear group,
> >
> > Just like Bakis I want to wish you all a good 2012!
> >
> > But now, something completely different.
> >
> > When plugging in headphones in an audio out connector (VCA,
> > mixer) I hear both the left and right channel.
> > However, if I route the audio out through a multiples, the audio
> > signal is halved, only the left channel is left.
> > Is this caused by a difference in the audio out and multiples connectors?
> > Hope someone can tell.
> >
> > Warm regards,
> >
> > Ton
> 
> Also from me Best Wishes for the New Year!
> 
> The mechanical construction of monophonic 3.5 mm jacks and plugs is
> different from stereophonic versions. Parts of the long GND sector of the
> monophonic versions is used in the stereophonic versions as the second
> signal. It depends upon the mechanical tolerances and the plug-in depth what
> happens if a stereophonic plug is connected to a monophonic socket.
> Typically the second stereo signal will be dead as the corresponding sector
> of the plug is not connected or connected to GND (depends upon the
> mechanical details of the monophonic jack socket). But there might be an
> intermediate plug-in position where the monophonic signal appears on both
> stereo channels.
> 
> As there exists no technical specification that describes what happens if a
> 3.5 mm stereo plug is connected to a monophonic 3.5 mm socket you will have
> to try it out. In the A-100 two different 3.5 mm sockets are used (vertical
> and horizontal) and maybe they behave different.
> 
> Best wishes
> Dieter Doepfer
>

>
> This happens because the GND is shared in the headphone for each channel and where a mono jack that has a plastic shell and instead of connecting with the shell, uses a connection that normally is where the ring is on a stereo plug. The jack connects to the ring of the headphones (expecting to connect to the shaft of the mono plug) and you get what appears to be a mono signal but is in fact both left and right being connected serially (through the shared ground). The ground being connected together and the ring connecting to the true ground.  Positive jack to left positive, left negative (shared GND) to right negative (shared GND) to right positive to mono jack GND (instead of ring). This happens on headphones because they share the single ground for both left and right. 
> -James
> 
> On Jan 9, 2012, at 4:06 AM, yahoo@... wrote:
> 
> >> Dear group,
> >> 
> >> Just like Bakis I want to wish you all a good 2012!
> >> 
> >> But now, something completely different.
> >> 
> >> When plugging in headphones in an audio out connector (VCA,
> >> mixer) I hear both the left and right channel.
> >> However, if I route the audio out through a multiples, the audio
> >> signal is halved, only the left channel is left.
> >> Is this caused by a difference in the audio out and multiples connectors?
> >> Hope someone can tell.
> >> 
> >> Warm regards,
> >> 
> >> Ton
> > 
> > Also from me Best Wishes for the New Year!
> > 
> > The mechanical construction of monophonic 3.5 mm jacks and plugs is
> > different from stereophonic versions. Parts of the long GND sector of the
> > monophonic versions is used in the stereophonic versions as the second
> > signal. It depends upon the mechanical tolerances and the plug-in depth what
> > happens if a stereophonic plug is connected to a monophonic socket.
> > Typically the second stereo signal will be dead as the corresponding sector
> > of the plug is not connected or connected to GND (depends upon the
> > mechanical details of the monophonic jack socket). But there might be an
> > intermediate plug-in position where the monophonic signal appears on both
> > stereo channels.
> > 
> > As there exists no technical specification that describes what happens if a
> > 3.5 mm stereo plug is connected to a monophonic 3.5 mm socket you will have
> > to try it out. In the A-100 two different 3.5 mm sockets are used (vertical
> > and horizontal) and maybe they behave different.
> > 
> > Best wishes
> > Dieter Doepfer
> > 
> > 
> > 
> > 
> > 
> > ------------------------------------
> > 
> > Yahoo! Groups Links
> > 
> > 
> >
>