[PD] Delay effect without clicks

[John Harrison]

from your first email, it sounds like you are expecting a pitch shift. 
So how does the pitch shift you are hearing differ from what you are 
expecting i.e. define "weird." I take it you tried different numbers 
where the 50 is i.e. 500 etc.? Still weird?

It seemed to me that Frank thought you wanted to build a pitch shifter 
using the delay effect.

-John

Bjørn Nielsen wrote:
> Thanks Marius, Frank & John
>
> I got rid of the click noises now by doing this
>
> [numberbox\
>  |
> [pack $f1 50]
>  |
> [line~]
>  |
> [vd~ testreadname]
>
> But the pitch shifting it does while changing delay time is quite
> weird, so I think I will look into Franks example of doing this.
>
> / Bjørn
>
> On Fri, Mar 27, 2009 at 07:08, marius schebella
> <marius.schebella at gmail.com> wrote:
>   
>> hi again,
>> vd~ allows you to be controlled via a dsp signal (as opposed to a message
>> inlet which only gets updated every 1,6 ms or so) and thus allows you to
>> smoothly change the delay time. but you have to do do an interpolation
>> between the messages you are feeding into it, and the best way to do this is
>> with [line~].
>>
>> [numberbox\
>>  |
>> [line $1 100(
>>  |
>> [vd~ del]
>>
>> marius.
>>
>>
>> Bjørn Nielsen wrote:
>>     
>>> Hey Marius
>>> Thanks for the quick reply.
>>>
>>> I have now tried vd~, but I still encounter clicks noises when I
>>> change delay time.
>>>
>>> audiosignal
>>> |
>>> [delwrite testname 2000]
>>>
>>> delaytime
>>> |
>>>  [sig~]
>>> |
>>> [vd~ testname]
>>> |
>>> audioout+back to delwrite
>>>
>>> Do the click noises has something to do with the samplelength in
>>> delwrite~? (and can it at all be changed on the fly?)
>>>
>>> /Bjørn
>>>
>>>
>>> On Fri, Mar 27, 2009 at 00:13, marius schebella
>>> <marius.schebella at gmail.com> wrote:
>>>       
>>>> hi Bjørn,
>>>> maybe vd~ (variable delay) is what you're looking for?
>>>> marius.
>>>>
>>>> Bjørn Nielsen wrote:
>>>>         
>>>>> Hey PD list
>>>>> This is my first mail to the list and I am a newbie in PD, so please
>>>>> bear with me.
>>>>>
>>>>> I am trying to make a patch that simulates the delay effects I use as
>>>>> a stompbox for my guitar. I.e. a signal delay line, with a parameter
>>>>> of feedback and a parameter of delay time. While changing the delay
>>>>> time parameter the ongoing sampled part should change pitch.
>>>>>
>>>>> My first attempt (as in the attached patch) is to use
>>>>> delread~/delwrite~, but changing the lenght of the sampled part in
>>>>> delread~ makes a lot of clicks noises (which can be fun, but not what
>>>>> I intended) and it do not change pitch. My max/msp friend said I
>>>>> should instead of clipping the sample, make it run faster. So I tried
>>>>> to figure if that was possible with delread~, vd~ or using arrays
>>>>> instead with tabread(4)~, but I have not found the golden key yet.
>>>>>
>>>>> I would be very happy if somebody could lead me in right direction.
>>>>> Thanks, Bjørn
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------
>>>>>
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>>     
>
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>   

-- 
John Harrison
http://alumni.media.mit.edu/~harrison


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