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Random Sequence

Random Sequence

2014-09-23 by David Kellett

Hi,

I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 

So what have I got wrong / not understood?

David

www.movingisliving.co.uk

Sent from my iPhone

Re: [Doepfer_a100] Random Sequence

2014-09-23 by Nicholas Keller

Hello David.

You are speaking my language. 

Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?

Nick

Sent from the future
Show quoted textHide quoted text
> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hi,
> 
> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
> 
> So what have I got wrong / not understood?
> 
> David
> 
> www.movingisliving.co.uk
> 
> Sent from my iPhone
> 
>

Re: Random Sequence

2014-09-24 by domenicocollacciani@yahoo.it

Hi Nicholas,

I think you should use linear VCA A-130 instead of linear mixer A-138 sending the original sequence to In 1 and the output of the S&H to cv2. With gain at 5 and cv2 at 0 you should get a stable basic sequence of voltages (with lower voltages, being the amp ratio 0,5). Turning cv2 will add some randomness to sequence.

Mimmo

Re: [Doepfer_a100] Random Sequence

2014-09-24 by David Kellett

My original sequence is supplied by a Korg SQ10 - the triggers not being compatible are coming from elsewhere. 

I want a basic shape to the sequence with a slight and varying remove from it. 

David 

www.movingisliving.co.uk

Sent from my iPhone 
Show quoted textHide quoted text
> On 23 Sep 2014, at 15:13, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hello David.
> 
> You are speaking my language. 
> 
> Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?
> 
> Nick
> 
> Sent from the future
> 
>> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> Hi,
>> 
>> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
>> 
>> So what have I got wrong / not understood?
>> 
>> David
>> 
>> www.movingisliving.co.uk
>> 
>> Sent from my iPhone
>> 
> 
>

Re: [Doepfer_a100] Re: Random Sequence

2014-09-24 by David Kellett

I will try thy when I'm home,

David

www.movingisliving.co.uk

Sent from my iPhone 
Show quoted textHide quoted text
> On 24 Sep 2014, at 10:05, domenicocollacciani@yahoo.it [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hi Nicholas,
> 
> 
> I think you should use linear VCA A-130 instead of linear mixer A-138 sending the original sequence to In 1 and the output of the S&H  to cv2.  With gain at 5 and cv2 at 0 you should get a stable basic sequence of voltages (with lower voltages, being the amp ratio 0,5). Turning cv2 will add some randomness to sequence.
> 
> Mimmo
> 
>  
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by Nicholas Keller

David

I'm still not sure I understand what you want.   Do you want each bar to be transposed by a random amount? Or do you want each individual step to be a random value within a certain range from the active SQ-10 step value (so that if S+H range = -/+3 semitones, and SQ-10 sequence = A,B,C,D, then quantizer output COULD equal A+2,B-3,C-1,D, A-2,B,C+2,D+1....)

I'm also not sure I understand the other comment in this thread.  Setting a VCA gain to 5 would mean that 4V from the SQ-10 would become 2V from the Quantizer.  No?

Nick

Sent from the future
Show quoted textHide quoted text
> On Sep 24, 2014, at 5:23 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
> 
> My original sequence is supplied by a Korg SQ10 - the triggers not being compatible are coming from elsewhere. 
> 
> I want a basic shape to the sequence with a slight and varying remove from it. 
> 
> David 
> 
> www.movingisliving.co.uk
> 
> Sent from my iPhone 
> 
>> On 23 Sep 2014, at 15:13, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> Hello David.
>> 
>> You are speaking my language. 
>> 
>> Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?
>> 
>> Nick
>> 
>> Sent from the future
>> 
>>> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>> 
>>>  
>>> Hi,
>>> 
>>> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
>>> 
>>> So what have I got wrong / not understood?
>>> 
>>> David
>>> 
>>> www.movingisliving.co.uk
>>> 
>>> Sent from my iPhone
>>> 
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by David Kellett

It is each note to be affected not each bar. 

David

www.movingisliving.co.uk

Sent from my iPhone 
Show quoted textHide quoted text
> On 24 Sep 2014, at 14:01, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> David
> 
> I'm still not sure I understand what you want.   Do you want each bar to be transposed by a random amount? Or do you want each individual step to be a random value within a certain range from the active SQ-10 step value (so that if S+H range = -/+3 semitones, and SQ-10 sequence = A,B,C,D, then quantizer output COULD equal A+2,B-3,C-1,D, A-2,B,C+2,D+1....)
> 
> I'm also not sure I understand the other comment in this thread.  Setting a VCA gain to 5 would mean that 4V from the SQ-10 would become 2V from the Quantizer.  No?
> 
> Nick
> 
> Sent from the future
> 
>> On Sep 24, 2014, at 5:23 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> My original sequence is supplied by a Korg SQ10 - the triggers not being compatible are coming from elsewhere. 
>> 
>> I want a basic shape to the sequence with a slight and varying remove from it. 
>> 
>> David 
>> 
>> www.movingisliving.co.uk
>> 
>> Sent from my iPhone 
>> 
>>> On 23 Sep 2014, at 15:13, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>> 
>>>  
>>> Hello David.
>>> 
>>> You are speaking my language. 
>>> 
>>> Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?
>>> 
>>> Nick
>>> 
>>> Sent from the future
>>> 
>>>> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>>> 
>>>>  
>>>> Hi,
>>>> 
>>>> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
>>>> 
>>>> So what have I got wrong / not understood?
>>>> 
>>>> David
>>>> 
>>>> www.movingisliving.co.uk
>>>> 
>>>> Sent from my iPhone
>>>> 
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by Nicholas Keller

After my last reply, I re-read your original post and the other comment.  I see that he does say that the resulting sequence would be half the range of the original, and I see that you specify that your goal is a sequence that is never the same.  I think your original setup was basically correct for what you are trying to generate, but I think it was just hard to distinguish between a fully random output and the SQ-10+S&H combination.  I believe if you could monitor the three outputs at once (SQ-10, S&H, and Combined output from quantizer) you would see that they are all different and you weren't hearing either/or during your initial experiment. (If you have a multi-input soundcard and enough VCOs, you could record the audio outputs of all branches from this patch at the same time and compare the patterns.  I could maybe do this and provide an example, but I'm not really supposed to be moving around at the moment following an injury at work, crushed my foot).  You need to have a very small amount of S&H added to maintain a recognizable relation to the original SQ-10, but ALSO if you are using the A-156 to quantize, keep in mind that it does not process negative voltages.  Any combined step (SQ-10 value + a negative S&H value) with a negative voltage will output as Low C from the quantizer.  This may cause several notes to be the same in each bar, so some offset may be required at the SQ-10.  For example, if you patch an LFO into the A-156, half the notes output (all notes during the negative phase of the LFO shape) will be Low C.  The lowest-generated SQ-10 voltage must be greater than the negative range of the A-148. 

If using the colored noise as the source for the random/A-148, narrow the range by adjusting the Red and Blue dials on the 118 as well as using the attenuator on the mixer.   To get a random offset of just -/+1semitone would require some very fine tuning of the S&H mix level.  

Nick

Sent from the future
Show quoted textHide quoted text
> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hi,
> 
> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
> 
> So what have I got wrong / not understood?
> 
> David
> 
> www.movingisliving.co.uk
> 
> Sent from my iPhone
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by Nicholas Keller

As per my last reply where I suggest monitoring the 3 outputs of you original patch..... If you have a DMM with DCV setting, you could advance each step manually and measure the outputs to verify that all three are in fact different and that the combined quantizer output is different from the plain S&H output.  

Nick 

Sent from the future
Show quoted textHide quoted text
> On Sep 24, 2014, at 9:02 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
> 
> It is each note to be affected not each bar. 
> 
> David
> 
> www.movingisliving.co.uk
> 
> Sent from my iPhone 
> 
>> On 24 Sep 2014, at 14:01, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> David
>> 
>> I'm still not sure I understand what you want.   Do you want each bar to be transposed by a random amount? Or do you want each individual step to be a random value within a certain range from the active SQ-10 step value (so that if S+H range = -/+3 semitones, and SQ-10 sequence = A,B,C,D, then quantizer output COULD equal A+2,B-3,C-1,D, A-2,B,C+2,D+1....)
>> 
>> I'm also not sure I understand the other comment in this thread.  Setting a VCA gain to 5 would mean that 4V from the SQ-10 would become 2V from the Quantizer.  No?
>> 
>> Nick
>> 
>> Sent from the future
>> 
>>> On Sep 24, 2014, at 5:23 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>> 
>>>  
>>> My original sequence is supplied by a Korg SQ10 - the triggers not being compatible are coming from elsewhere. 
>>> 
>>> I want a basic shape to the sequence with a slight and varying remove from it. 
>>> 
>>> David 
>>> 
>>> www.movingisliving.co.uk
>>> 
>>> Sent from my iPhone 
>>> 
>>>> On 23 Sep 2014, at 15:13, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>>> 
>>>>  
>>>> Hello David.
>>>> 
>>>> You are speaking my language. 
>>>> 
>>>> Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?
>>>> 
>>>> Nick
>>>> 
>>>> Sent from the future
>>>> 
>>>>> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>>>> 
>>>>>  
>>>>> Hi,
>>>>> 
>>>>> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
>>>>> 
>>>>> So what have I got wrong / not understood?
>>>>> 
>>>>> David
>>>>> 
>>>>> www.movingisliving.co.uk
>>>>> 
>>>>> Sent from my iPhone
>>>>> 
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by David Kellett

It's a uScale Intellijel quantiser and the values are such that I'm not dropping the voltage into negative and getting low Cs. 


Sorry about the foot!! Hope it's not too painful. I sympathise as I had a car accident 2 1/2 years ago and still in a lot of pain. But the bright side is that once the insurance claim is settled I have decided to spend 1/5 on modules :-)

David

www.movingisliving.co.uk

Sent from my iPhone 
Show quoted textHide quoted text
> On 24 Sep 2014, at 14:33, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> As per my last reply where I suggest monitoring the 3 outputs of you original patch..... If you have a DMM with DCV setting, you could advance each step manually and measure the outputs to verify that all three are in fact different and that the combined quantizer output is different from the plain S&H output. 
> 
> Nick 
> 
> Sent from the future
> 
>> On Sep 24, 2014, at 9:02 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> It is each note to be affected not each bar. 
>> 
>> David
>> 
>> www.movingisliving.co.uk
>> 
>> Sent from my iPhone 
>> 
>>> On 24 Sep 2014, at 14:01, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>> 
>>>  
>>> David
>>> 
>>> I'm still not sure I understand what you want.   Do you want each bar to be transposed by a random amount? Or do you want each individual step to be a random value within a certain range from the active SQ-10 step value (so that if S+H range = -/+3 semitones, and SQ-10 sequence = A,B,C,D, then quantizer output COULD equal A+2,B-3,C-1,D, A-2,B,C+2,D+1....)
>>> 
>>> I'm also not sure I understand the other comment in this thread.  Setting a VCA gain to 5 would mean that 4V from the SQ-10 would become 2V from the Quantizer.  No?
>>> 
>>> Nick
>>> 
>>> Sent from the future
>>> 
>>>> On Sep 24, 2014, at 5:23 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>>> 
>>>>  
>>>> My original sequence is supplied by a Korg SQ10 - the triggers not being compatible are coming from elsewhere. 
>>>> 
>>>> I want a basic shape to the sequence with a slight and varying remove from it. 
>>>> 
>>>> David 
>>>> 
>>>> www.movingisliving.co.uk
>>>> 
>>>> Sent from my iPhone 
>>>> 
>>>>> On 23 Sep 2014, at 15:13, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>>>> 
>>>>>  
>>>>> Hello David.
>>>>> 
>>>>> You are speaking my language. 
>>>>> 
>>>>> Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?
>>>>> 
>>>>> Nick
>>>>> 
>>>>> Sent from the future
>>>>> 
>>>>>> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>>>>> 
>>>>>>  
>>>>>> Hi,
>>>>>> 
>>>>>> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer. 
>>>>>> 
>>>>>> So what have I got wrong / not understood?
>>>>>> 
>>>>>> David
>>>>>> 
>>>>>> www.movingisliving.co.uk
>>>>>> 
>>>>>> Sent from my iPhone
>>>>>> 
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by Florian Anwander

Hello

I could imagine, that the Mixer puts a too high load on the S&H-Output.

I'd try the following setup

SequenceFromVolta into A-156 "Quantizer 1"-CvIn
RandomVoltage into A-156 "Quantizer 2"-CvIn

Quantizer 1 CvOut in A-138 In1
Quantizer 2 CvOut in A-138 In2
A-138 Out into VCO-CvIn


Florian

Re: [Doepfer_a100] Random Sequence

2014-09-24 by istari

Hi

i use also a SQ10 with my euro rack. to trigger the sq10 from the 
A100 there is a spezial cable available by doepfer that changes the 
different gate phases. i also used the 0/1 conversion from the 
doepfer logic module or the trigger modifier for this ( you can also 
use a simple schmitt-trigger ). then you can use them to clock sq10 
to A100 or A100 to sq10. just something that converts a 0 volt to 5 
volt or 5 volt to 0 volt.

for the random stuff...

cheers
Show quoted textHide quoted text
>  My original sequence is supplied by a Korg SQ10 - the triggers not 
>being compatible are coming from elsewhere.
>
>I want a basic shape to the sequence with a slight and varying remove from it.
>
>David 
>
><http://www.movingisliving.co.uk>www.movingisliving.co.uk
>
>Sent from my iPhone
>
>On 23 Sep 2014, at 15:13, Nicholas Keller 
><mailto:maq163x2@gmail.com>maq163x2@gmail.com [Doepfer_a100] 
><<mailto:Doepfer_a100@yahoogroups.com>Doepfer_a100@yahoogroups.com> 
>wrote:
>
>>
>>
>>Hello David.
>>
>>You are speaking my language.
>>
>>Let's back up a bit.  You said that the S+H is being triggered in 
>>time with the original sequence.  In this case, the original 
>>sequence basically becomes unnecessary as for each step in the 
>>sequence, another voltage is added.  You are correct that the 
>>result should never repeat (at least it is highly unlikely) but it 
>>is also hardly any relation to the original random-ordered note 
>>pattern.  If you reduced the S+H clock to something more like 1 
>>bar, then you would have more of a transposing effect applied to 
>>the original random sequence, but I assume this is not the effect 
>>you were after.  What type of pattern exactly are you trying to 
>>generate?  As it is now, your mixed quantized output wouldn't be 
>>noticeably different from a more simple 118->148->156 output 
>>(unless directly comparing the two in realtime, of course).   What 
>>sequencer is creating the initial random pattern?
>>
>>Nick
>>
>>Sent from the future
>>
>>On Sep 23, 2014, at 9:05 AM, "David Kellett 
>><mailto:davidkellettwoulf@yahoo.com>davidkellettwoulf@yahoo.com 
>>[Doepfer_a100]" 
>><<mailto:Doepfer_a100@yahoogroups.com>Doepfer_a100@yahoogroups.com> 
>>wrote:
>>
>>>
>>>
>>>Hi,
>>>
>>>I'm trying to create a randomised sequence. I have an analog 
>>>sequence of volta going into a quantiser via an A138 Lin. In 
>>>another channel of the 138 I have a S&H voltage. The S&H is 
>>>derived from an A148 clocked by the same trigger as the sequence 
>>>and with the sample being Random control from an A118. I expected 
>>>that the random S&H voltage would "push" the sequenced notes 
>>>slightly - so the sequence would be related to the original but 
>>>never the same. What I get is the sequence or the random - 
>>>whatever settings I use in the mixer.
>>>
>>>So what have I got wrong / not understood?
>>>
>>>David
>>>
>>><http://www.movingisliving.co.uk>www.movingisliving.co.uk
>>>
>>>Sent from my iPhone
>>>
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by Nicholas Keller

We were assuming an A-156 Dual Quantizer, but he is using an Intellijel uScale.  In this case, either seq and S&H must be mixed pre uScale or S&H must be trimmed and patched to Scale input.  I've never used a uScale, but it looks quite interesting! 

Nick 

Sent from the future
Show quoted textHide quoted text
> On Sep 24, 2014, at 10:01 AM, "Florian Anwander fanwander@mnet-online.de [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hello
> 
> I could imagine, that the Mixer puts a too high load on the S&H-Output.
> 
> I'd try the following setup
> 
> SequenceFromVolta into A-156 "Quantizer 1"-CvIn
> RandomVoltage into A-156 "Quantizer 2"-CvIn
> 
> Quantizer 1 CvOut in A-138 In1
> Quantizer 2 CvOut in A-138 In2
> A-138 Out into VCO-CvIn
> 
> Florian
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by David Kellett

Yeah I have a couple of the Doepfer cables. I'm thinking about a box to take the individual triggers per step out of the SQ10 so that they are straight converted to Eurorack triggers that are then available at the other side of the box. But also to have a switch for each trigger so they can be turned off and a summed trigger out from that. But I can't build something like that so need to find someone who can :-(

David

www.movingisliving.co.uk

Sent from my iPhone 
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> On 24 Sep 2014, at 15:22, 'istari' istari@sozialistischer-plattenbau.org [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hi
> 
> i use also a SQ10 with my euro rack. to trigger the sq10 from the A100 there is a spezial cable available by doepfer that changes the different gate phases. i also used the 0/1 conversion from the doepfer logic module or the trigger modifier for this ( you can also use a simple schmitt-trigger ). then you can use them to clock sq10 to A100 or A100 to sq10. just something that converts a 0 volt to 5 volt or 5 volt to 0 volt.
> 
> for the random stuff...
> 
> cheers
> 
> 
>>  My original sequence is supplied by a Korg SQ10 - the triggers not being compatible are coming from elsewhere.
>> I want a basic shape to the sequence with a slight and varying remove from it.
>> David 
>> 
>> www.movingisliving.co.uk
>> Sent from my iPhone
>> 
>>> On 23 Sep 2014, at 15:13, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>> Hello David.
>>> You are speaking my language.
>>> Let's back up a bit.  You said that the S+H is being triggered in time with the original sequence.  In this case, the original sequence basically becomes unnecessary as for each step in the sequence, another voltage is added.  You are correct that the result should never repeat (at least it is highly unlikely) but it is also hardly any relation to the original random-ordered note pattern.  If you reduced the S+H clock to something more like 1 bar, then you would have more of a transposing effect applied to the original random sequence, but I assume this is not the effect you were after.  What type of pattern exactly are you trying to generate?  As it is now, your mixed quantized output wouldn't be noticeably different from a more simple 118->148->156 output (unless directly comparing the two in realtime, of course).   What sequencer is creating the initial random pattern?
>>> Nick
>>> 
>>> Sent from the future
>>> 
>>>> On Sep 23, 2014, at 9:05 AM, "David Kellett davidkellettwoulf@yahoo.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>>>> Hi,
>>>> 
>>>> I'm trying to create a randomised sequence. I have an analog sequence of volta going into a quantiser via an A138 Lin. In another channel of the 138 I have a S&H voltage. The S&H is derived from an A148 clocked by the same trigger as the sequence and with the sample being Random control from an A118. I expected that the random S&H voltage would "push" the sequenced notes slightly - so the sequence would be related to the original but never the same. What I get is the sequence or the random - whatever settings I use in the mixer.
>>>> 
>>>> So what have I got wrong / not understood?
>>>> 
>>>> David
>>>> 
>>>> www.movingisliving.co.uk
>>>> 
>>>> Sent from my iPhone
> 
> 
>

Re: [Doepfer_a100] Random Sequence

2014-09-24 by David Kellett

Yeah I'm mixing the control voltages before the uScale. And the uScale is good. I'm only scratching the surface of it so far - basically making it quantise to an F pentatonic scale at the moment. But it is great that I can add notes into that or take them out very simply on the fly. If I were more "musical" I'm sure I could do a lot more. I have no music education - only my ears to go by. 

David

www.movingisliving.co.uk

Sent from my iPhone 
Show quoted textHide quoted text
> On 24 Sep 2014, at 16:07, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> We were assuming an A-156 Dual Quantizer, but he is using an Intellijel uScale.  In this case, either seq and S&H must be mixed pre uScale or S&H must be trimmed and patched to Scale input.  I've never used a uScale, but it looks quite interesting! 
> 
> Nick 
> 
> Sent from the future
> 
>> On Sep 24, 2014, at 10:01 AM, "Florian Anwander fanwander@mnet-online.de [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> Hello
>> 
>> I could imagine, that the Mixer puts a too high load on the S&H-Output.
>> 
>> I'd try the following setup
>> 
>> SequenceFromVolta into A-156 "Quantizer 1"-CvIn
>> RandomVoltage into A-156 "Quantizer 2"-CvIn
>> 
>> Quantizer 1 CvOut in A-138 In1
>> Quantizer 2 CvOut in A-138 In2
>> A-138 Out into VCO-CvIn
>> 
>> Florian
> 
>

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