[PD] imager

Johannes THIS_IS_POP at web.de
Wed Nov 11 23:45:26 CET 2009


Derek Holzer schrieb:
> Ah you must mean this:
>
> http://en.wikipedia.org/wiki/Stereo_imaging
yes, sometime its also named "spreading" or "stereo spreading".
>
> Your delay idea only covers one part of the psychoacoustics of the 
> stereo image: the difference in time when a sound reaches each ear. 
> Psychoacoustics are a bit more complicated than that I'm afraid. You 
> might look up HRTF (head related transfer functions) to get a better 
> idea of the time differences involved. But there are a lot of other 
> factors. An intro book on psychoacoustic might be a good place to start.
>
> Maybe some of the ambisonics experts around here will chip in some 
> other things...
>
> best,
> Derek
>
> Derek Holzer wrote:
>> What is an imager supposed to do? I've never heard of this effect and 
>> Google isn't too helpful on the subject.
>>
>> D.
>>
>> Johannes wrote:
>>> hello people,
>>>
>>> i like to build an imager effect in pd but have some trouble with 
>>> it. what i´ve acually tryed is very simple: sending one 
>>> signalchannel of an stereo pair into delaywrite~ (while the other 
>>> goes directy into dac~) after 6 - 26 ms later i read out of it with 
>>> delread~ and is connected to the second input of dac~.
>>>
>>> is this the right way to build an imager?
>>>
>>> does anybody know the theoretic background of the imager?
>>>
>>> some other ideas how i can do an imager in pd?
>>
>>
>





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