[PD] Layered loops: Delays or Arrays?

[Ian Smith-Heisters]

I liked delay lines because they seem elegant too. However, when I got 4 
of them going I started getting stack overflows. I went over to arrays, 
which seem more easily manipulatable, maybe just because I'm more 
familiar with them. More importantly, they haven't caused stack overflows ;)

Here's what I came up with. I'll probably add some more features, but 
it's functional. It's for a friend who was about to put down god knows 
how much money on the hardware version, and I said that her laptop could 
probably do the same job a lot better. Getting the envelope was the 
toughest part. I tried a few different schemes and think using a 
threshold~ and a line~ works best.

Thanks for the patch, it's very interesting, though I did have some 
problems figuring it out.

-Ian



ba wrote:

>I like using delay lines because it seems like an elegant solution to the 
>problem, but maybe it's just complicating things.
>
>As for the click, you might be able to use a sample and hold object and adjust 
>the way the sample is written into the delay line.  Come to think of it, maybe 
>the array version would be better because you could samphold at every loop 
>start.  but wouldn't it be more efficient to write the delay line correctly 
>the first time?
>
>here's something to start with.
>
>  
>
>>===== Original Message From Ian Smith-Heisters <heisters at 0x09.com> =====
>>Hi list,
>>
>>I'm trying to build a gizmo that will take adc~, throw it into a buffer
>>of some sort and loop it. Then you could create another and they would
>>be layered over eachother. I think this is a thing that performance
>>musicians often buy as hardware.
>>
>>The way I initially went about it is using a delay loop. You hit a
>>button, and it routes sound from adc~ into a delwrite~, then after a
>>defined amount of time it switches the input from the delwrite~ over to
>>a delread~ so that the delay starts looping.
>>
>>I was just wondering if it would be better to implement this using
>>arrays--which has more overhead? Are there other factors?
>>
>>And while I'm at it, is there any neato trick to getting rid of the
>>click at the seam of the loop besides turning the amplitude down with a
>>line?
>>
>>Thanks,
>>Ian
>>
>>_______________________________________________
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>>
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>  
>

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