Re: [Csnd-dev] [EXTERNAL] Re: [Csnd-dev] extended guard point

Victor Lazzarini <[email protected]>
Newsgroups gmane.comp.audio.csound.devel
Message-ID <[email protected]>
yes, that's confusing and there is not an easy solution as we want to keep backward compatibility

Prof. Victor Lazzarini
Maynooth University
Ireland

> On 29 Mar 2024, at 19:19, joachim heintz <[email protected]> wrote:
>
> good you are looking into this, victor.
> i just want to confirm that the extended guard point is really hard to understand for "normal users",  for instance, creating a table for GEN02 with 8 and 9 points both return 8 with ftlen:
>    print(ftlen(ftgen(0,0,8,2,0)))
>    print(ftlen(ftgen(0,0,9,2,0)))
> if we could find a solution to make this more intuitive, it would be wonderful.
>
>
>> On 29/03/2024 18:48, Victor Lazzarini wrote:
>> That's one idea. It might work.
>> Prof. Victor Lazzarini
>> Maynooth University
>> Ireland
>>>> On 29 Mar 2024, at 16:17, Michael Gogins <[email protected]> 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.
>>>
>>> Fractional table number?
>>>
>>> -----------------------------------------------------
>>> Michael Gogins
>>> Irreducible Productions
>>> http://michaelgogins.tumblr.com/ <http://michaelgogins.tumblr.com/>
>>> Michael dot Gogins at gmail dot com
>>>
>>>
>>>> On Fri, Mar 29, 2024 at 3:53 PM Victor Lazzarini <[email protected] <mailto:[email protected]>> wrote:
>>>
>>>    Work on PR1848 has brought up one unresolved issue that has been
>>>    present since we mainstreamed non-pow-two tables.
>>>
>>>    There are two problems:
>>>
>>>    1) There is currently no way to tell Csound to create a table with
>>>    an extended guard point if we do not use a pow-two size.
>>>
>>>    2) Pow-two+1 sizes are pow-two lengths with extended guard point.
>>>    There is no way to actually create a table with that size.
>>>
>>>    A solution for 1) is to find a way to indicate an extended guard
>>>    point using some form of code (like we do to suppress rescaling)
>>>
>>>    We can't use negative table numbers because these were used in the
>>>    past to allow np2 tables.
>>>
>>>    We can't use negative table numbers because these are used for
>>>    internal tables.
>>>
>>>    Negative creation times may be a solution. While I don't like
>>>    these adhoc codes, there may not be any other means.
>>>
>>>    Any suggestions, ideas?
>>>
>>>    Prof. Victor Lazzarini
>>>    Maynooth University
>>>    Ireland
>>>
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