Hi list,

How would I go about building a delay line that can be switched on and off? What I mean by that is that I can toggle whether it accepts incoming audio into its buffer or keeps looping through whatever is currently in the buffer. Essentially, I'm looking for a delay whose buffer can be frozen and further manipulated.

I tried building this as an UDO, but there doesn't seem to be general purpose circular buffer opcode that can be used as a building block.

Thanks,

Alex

Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Here’s the basic idea

 instr 1
ilp = p4
asig in
adel delayr ilp
kenv linsegr 1,ilp-.1,1,.1,0,1,0
delayw  asig*kenv+adel
  out adel*(1-kenv)
endin

========================
Dr Victor Lazzarini
Dean of Arts, Celtic Studies and Philosophy,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952 

> On 3 Sep 2016, at 07:33, Victor Lazzarini  wrote:
> 
> delayr-delayw is a circular buffer that you could use. To use it in a loop, just feed the out of delayr into delayw without mixing any other input.
> 
> You can also use an ftable or an array, but delayr-w is simpler.
> 
> Victor Lazzarini
> Dean of Arts, Celtic Studies, and Philosophy
> Maynooth University
> Ireland
> 
> On 3 Sep 2016, at 03:10, Alex Weiss  wrote:
> 
>> Hi list,
>> 
>> How would I go about building a delay line that can be switched on and off? What I mean by that is that I can toggle whether it accepts incoming audio into its buffer or keeps looping through whatever is currently in the buffer. Essentially, I'm looking for a delay whose buffer can be frozen and further manipulated.
>> 
>> I tried building this as an UDO, but there doesn't seem to be general purpose circular buffer opcode that can be used as a building block.
>> 
>> Thanks,
>> Alex
>> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

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Send bugs reports to
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Hi,

There is vdelay opcode

Tarmo

Thanks Victor, that worked great. But is there a version of delayr/delayw that accepts a k-rate delay time? I can't find anything in the manual...

Thanks,

Alex

On Sat, Sep 3, 2016 at 8:25 AM Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Here’s the basic idea

 instr 1
ilp = p4
asig in
adel delayr ilp
kenv linsegr 1,ilp-.1,1,.1,0,1,0
delayw  asig*kenv+adel
  out adel*(1-kenv)
endin

========================
Dr Victor Lazzarini
Dean of Arts, Celtic Studies and Philosophy,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952

> On 3 Sep 2016, at 07:33, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:
>
> delayr-delayw is a circular buffer that you could use. To use it in a loop, just feed the out of delayr into delayw without mixing any other input.
>
> You can also use an ftable or an array, but delayr-w is simpler.
>
> Victor Lazzarini
> Dean of Arts, Celtic Studies, and Philosophy
> Maynooth University
> Ireland
>
> On 3 Sep 2016, at 03:10, Alex Weiss <alexweiss86@GMAIL.COM> wrote:
>
>> Hi list,
>>
>> How would I go about building a delay line that can be switched on and off? What I mean by that is that I can toggle whether it accepts incoming audio into its buffer or keeps looping through whatever is currently in the buffer. Essentially, I'm looking for a delay whose buffer can be frozen and further manipulated.
>>
>> I tried building this as an UDO, but there doesn't seem to be general purpose circular buffer opcode that can be used as a building block.
>>
>> Thanks,
>> Alex
>> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here