I am trying to do is have something delayed (looped) at full strength
and then when given a trigger begin to decay after a time.  I don't
have the instrument in front of me, but what I've been working at is
something like:

adelay comb a1, 60000, 16

to get the delay without (noticeable) decay. And use an if/then
triggered by a knob from a midi controller (if kcon >= 1/2 then...)

to multiply adelay by a line.

kline linen 1,6,1,0,5

I see various other loop mechanisms such as loop_ge, but the
documentation a bit terse for me to understand what it does.  Is there
a better way to go?

Charles


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Thanks Ian,
After having read the section on delays (up to flangers) in the csound
book I understand how this works.  What I'm not sure about is why you
recommend it.  Is it because of the ability to have multiple taps?

Charles

On Tue, Oct 6, 2009 at 9:03 AM, Iain McCurdy  wrote:
> whoops,
> delayw a1 + (adelay * kfb)
>
> not:
> deltapw a1 + (adelay * kfb)
>
> ________________________________
> From: i_mccurdy@hotmail.com
> To: csound@lists.bath.ac.uk
> Date: Tue, 6 Oct 2009 13:57:15 +0000
> Subject: [Csnd] RE: infinite delay
>
> Hi Charles,
>
> I really think you should be using a delay buffer construction to do this.
> e.g.
>
> ;amount of feedback (range 0 - 1). 1 = no decay, 0=maximum decay (only 1
> echo)
> ;you'll probably want to control this from your MIDI controller
> kfb = 0.9
>
> ;define (and read from the end of) a delay buffer. Also define its duration
> in seconds
> abufout delayr 2
>
> ;'tap' an audio signal from within this buffer at the stipulated time (in
> seconds) along its length
> ;(must be less than the entire length of the buffer)
> ;this will be the audio signal we are interested in, not 'abufout'
> adelay deltapi 0.0625
>
> ;write into the beginning of this buffer. (Input signal and feedback signal)
> deltapw a1 + (adelay * kfb)
>
> ;mix dry signal and delays
> out a1+adelay
>
> Hope this helps,
> Iain
>
>
>
>
>> Date: Tue, 6 Oct 2009 08:39:46 -0500
>> From: chasgran@gmail.com
>> To: csound@lists.bath.ac.uk
>> Subject: [Csnd] infinite delay
>>
>> I am trying to do is have something delayed (looped) at full strength
>> and then when given a trigger begin to decay after a time. I don't
>> have the instrument in front of me, but what I've been working at is
>> something like:
>>
>> adelay comb a1, 60000, 16
>>
>> to get the delay without (noticeable) decay. And use an if/then
>> triggered by a knob from a midi controller (if kcon >= 1/2 then...)
>>
>> to multiply adelay by a line.
>>
>> kline linen 1,6,1,0,5
>>
>> I see various other loop mechanisms such as loop_ge, but the
>> documentation a bit terse for me to understand what it does. Is there
>> a better way to go?
>>
>> Charles
>>
>>
>> Send bugs reports to this list.
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> csound"
>
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