hi all -

after some surprises in using a negative p3 in the score i think this is 
important to understand:
1. only one instance of such an instrument can be active (because this 
feature was designed for quasi legato).
2. if only a negative duration is present in the score, csound will 
terminate immediately:
a) the score
	i 1 0 -1 400
will terminate immediately.
b) the score
	i 1 0 -1 400
	i 1 3 -1 500
will terminate after three seconds.
(only adding something like "e 60" replaces the first instance of 
instrument 1 by the second.)

i think this is consistent, but also surprising.
i had a look in the reference manual, but found no documentation.
is it somehow hidden, or should we add it?

cheers -
	joachim

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As an aside, for projects meant to run indefinitely, I find it useful
to use --daemon mode. This could be done in CsOptions:



--daemon



sr = 48000
ksmps = 1
nchnls = 2
0dbfs = 1

instr 1
 asig = oscili(.25, 440)
 out(asig, asig)
endin



i1 0 -1



On Tue, Feb 13, 2024 at 5:44 AM Oeyvind Brandtsegg  wrote:
>
> Hi,
>
> Nice observations. Actually, it looks like I expect it to behave. Do note that you can initiate several instances with infinite duration if you use fractional instr numbers.
> i 1.1 0 -1 400
> i 1.2 0 -1 400
> ...
> I think the termination on the last infinite event also makes sense, since the score then contains no more information.
>
> As you suggest, it might be good to check if the manual documents the behaviour clearly enough.
>
> all best
> Øyvind
>
> tir. 13. feb. 2024 kl. 10:52 skrev joachim heintz :
>>
>> hi all -
>>
>> after some surprises in using a negative p3 in the score i think this is
>> important to understand:
>> 1. only one instance of such an instrument can be active (because this
>> feature was designed for quasi legato).
>> 2. if only a negative duration is present in the score, csound will
>> terminate immediately:
>> a) the score
>>         i 1 0 -1 400
>> will terminate immediately.
>> b) the score
>>         i 1 0 -1 400
>>         i 1 3 -1 500
>> will terminate after three seconds.
>> (only adding something like "e 60" replaces the first instance of
>> instrument 1 by the second.)
>>
>> i think this is consistent, but also surprising.
>> i had a look in the reference manual, but found no documentation.
>> is it somehow hidden, or should we add it?
>>
>> cheers -
>>         joachim
>>
>> 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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alternatively no score at all and

schedule(1, 0, -1)

in fact, I rarely use a score these days.

Prof. Victor Lazzarini
Maynooth University
Ireland

> On 14 Feb 2024, at 15:52, Steven Yi  wrote:
>
> *Warning*
>
> This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>
> As an aside, for projects meant to run indefinitely, I find it useful
> to use --daemon mode. This could be done in CsOptions:
>
> 
> 
> --daemon
> 
> 
>
> sr = 48000
> ksmps = 1
> nchnls = 2
> 0dbfs = 1
>
> instr 1
> asig = oscili(.25, 440)
> out(asig, asig)
> endin
>
> 
> 
> i1 0 -1
> 
> 
>
>> On Tue, Feb 13, 2024 at 5:44 AM Oeyvind Brandtsegg  wrote:
>>
>> Hi,
>>
>> Nice observations. Actually, it looks like I expect it to behave. Do note that you can initiate several instances with infinite duration if you use fractional instr numbers.
>> i 1.1 0 -1 400
>> i 1.2 0 -1 400
>> ...
>> I think the termination on the last infinite event also makes sense, since the score then contains no more information.
>>
>> As you suggest, it might be good to check if the manual documents the behaviour clearly enough.
>>
>> all best
>> Øyvind
>>
>>> tir. 13. feb. 2024 kl. 10:52 skrev joachim heintz :
>>>
>>> hi all -
>>>
>>> after some surprises in using a negative p3 in the score i think this is
>>> important to understand:
>>> 1. only one instance of such an instrument can be active (because this
>>> feature was designed for quasi legato).
>>> 2. if only a negative duration is present in the score, csound will
>>> terminate immediately:
>>> a) the score
>>>        i 1 0 -1 400
>>> will terminate immediately.
>>> b) the score
>>>        i 1 0 -1 400
>>>        i 1 3 -1 500
>>> will terminate after three seconds.
>>> (only adding something like "e 60" replaces the first instance of
>>> instrument 1 by the second.)
>>>
>>> i think this is consistent, but also surprising.
>>> i had a look in the reference manual, but found no documentation.
>>> is it somehow hidden, or should we add it?
>>>
>>> cheers -
>>>        joachim
>>>
>>> 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

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Discussions of bugs and features can be posted here

cool, thanks.
i did not know about the --daemon option at all.


On 14/02/2024 16:52, Steven Yi wrote:
> As an aside, for projects meant to run indefinitely, I find it useful
> to use --daemon mode. This could be done in CsOptions:
> 
> 
> 
> --daemon
> 
> 
> 
> sr = 48000
> ksmps = 1
> nchnls = 2
> 0dbfs = 1
> 
> instr 1
>   asig = oscili(.25, 440)
>   out(asig, asig)
> endin
> 
> 
> 
> i1 0 -1
> 
> 
> 
> On Tue, Feb 13, 2024 at 5:44 AM Oeyvind Brandtsegg  wrote:
>>
>> Hi,
>>
>> Nice observations. Actually, it looks like I expect it to behave. Do note that you can initiate several instances with infinite duration if you use fractional instr numbers.
>> i 1.1 0 -1 400
>> i 1.2 0 -1 400
>> ...
>> I think the termination on the last infinite event also makes sense, since the score then contains no more information.
>>
>> As you suggest, it might be good to check if the manual documents the behaviour clearly enough.
>>
>> all best
>> Øyvind
>>
>> tir. 13. feb. 2024 kl. 10:52 skrev joachim heintz :
>>>
>>> hi all -
>>>
>>> after some surprises in using a negative p3 in the score i think this is
>>> important to understand:
>>> 1. only one instance of such an instrument can be active (because this
>>> feature was designed for quasi legato).
>>> 2. if only a negative duration is present in the score, csound will
>>> terminate immediately:
>>> a) the score
>>>          i 1 0 -1 400
>>> will terminate immediately.
>>> b) the score
>>>          i 1 0 -1 400
>>>          i 1 3 -1 500
>>> will terminate after three seconds.
>>> (only adding something like "e 60" replaces the first instance of
>>> instrument 1 by the second.)
>>>
>>> i think this is consistent, but also surprising.
>>> i had a look in the reference manual, but found no documentation.
>>> is it somehow hidden, or should we add it?
>>>
>>> cheers -
>>>          joachim
>>>
>>> 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
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Send bugs reports to
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Is the —daemon option and the negativ p3 in any way documented?
I can’t find it in the manual of the floss.

Greetings,
Philipp

> Am 14.02.2024 um 17:52 schrieb joachim heintz :
> 
> cool, thanks.
> i did not know about the --daemon option at all.
> 
> 
> On 14/02/2024 16:52, Steven Yi wrote:
>> As an aside, for projects meant to run indefinitely, I find it useful
>> to use --daemon mode. This could be done in CsOptions:
>> 
>> 
>> --daemon
>> 
>> 
>> sr = 48000
>> ksmps = 1
>> nchnls = 2
>> 0dbfs = 1
>> instr 1
>>  asig = oscili(.25, 440)
>>  out(asig, asig)
>> endin
>> 
>> 
>> i1 0 -1
>> 
>> 
>> On Tue, Feb 13, 2024 at 5:44 AM Oeyvind Brandtsegg  wrote:
>>> 
>>> Hi,
>>> 
>>> Nice observations. Actually, it looks like I expect it to behave. Do note that you can initiate several instances with infinite duration if you use fractional instr numbers.
>>> i 1.1 0 -1 400
>>> i 1.2 0 -1 400
>>> ...
>>> I think the termination on the last infinite event also makes sense, since the score then contains no more information.
>>> 
>>> As you suggest, it might be good to check if the manual documents the behaviour clearly enough.
>>> 
>>> all best
>>> Øyvind
>>> 
>>> tir. 13. feb. 2024 kl. 10:52 skrev joachim heintz :
>>>> 
>>>> hi all -
>>>> 
>>>> after some surprises in using a negative p3 in the score i think this is
>>>> important to understand:
>>>> 1. only one instance of such an instrument can be active (because this
>>>> feature was designed for quasi legato).
>>>> 2. if only a negative duration is present in the score, csound will
>>>> terminate immediately:
>>>> a) the score
>>>>         i 1 0 -1 400
>>>> will terminate immediately.
>>>> b) the score
>>>>         i 1 0 -1 400
>>>>         i 1 3 -1 500
>>>> will terminate after three seconds.
>>>> (only adding something like "e 60" replaces the first instance of
>>>> instrument 1 by the second.)
>>>> 
>>>> i think this is consistent, but also surprising.
>>>> i had a look in the reference manual, but found no documentation.
>>>> is it somehow hidden, or should we add it?
>>>> 
>>>> cheers -
>>>>         joachim
>>>> 
>>>> 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
> 

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