[Csnd] size of table
| Date | 2021-05-16 16:40 |
| From | tjingboem |
| Subject | [Csnd] size of table |
Perhaps cross posting, but i don't know if my message will be read by all if i post on The Csound Forum only... Hi, i have created a pvx file using pvanal. Now i want to use this pvx file as a mask in an instrument, and i have to put it in a table. filelen — Returns the length of a sound file! but not a pvx file |
| Date | 2021-05-16 16:57 |
| From | john |
| Subject | Re: [Csnd] size of table |
Reasing the code it looksas if te sixze must be greater or equal to kalf
the (fftsize+1). looking at the problem more widely I cannot see why tis
camnot be canged dynamcally to allocate what is needed. Ris isVictor's
code so prhaps he sjpuld comment.
==John ff
On Sun, 16 May 2021, tjingboem wrote:
>
> Perhaps cross posting, but i don't know if my message will be read by all if i
> post on The Csound Forum only...
>
>
> Hi,
> i believe i have a chicken and egg issue here…
>
> i have created a pvx file using pvanal.
> The output is:
> analysing 35280 sample frames (0.8 secs) from timepoint 1.0
> frameSize=1024
> 1024 infrsize, 256 infrInc
> 135 output frames estimated
> pvanal: creating pvocex file
> 20
> 40
> 60
> 80
> 100
> 120
> 140
> 160
>
> Now i want to use this pvx file as a mask in an instrument, and i have to put
> it in a table.
> But i do not know the table size, and deferred size is not allowed.
> How can i get to know the table size of the pvx file?
>
> filelen — Returns the length of a sound file! but not a pvx file
> ftlen - deferred size for GENs 1, 2, 23, 28 or 49 only, so GEN 43 is not one
> of them
> tableng - same thing as ftlen
>
> 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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| Date | 2021-05-16 20:04 |
| From | "Dr. Richard Boulanger" |
| Subject | Re: [Csnd] size of table |
| Sounds like we could use a pvxlen opcode Dr. Richard Boulanger Professor Electronic Production and Design Berklee College of Music On May 16, 2021, at 11:41 AM, tjingboem <magknevel@gmail.com> wrote:
|
| Date | 2021-05-16 22:18 |
| From | Victor Lazzarini |
| Subject | Re: [Csnd] [EXTERNAL] [Csnd] size of table |
size of table is DFT size divided by 2. So if analysis with N=1024, use at table size of 512. see https://csound.com/docs/manual/GEN43.html size -- number of points in the table, power-of-two or power-of-two plus 1. GEN 43 does not make any distinction between these two sizes, but it requires the table to be at least the fftsize/2. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 16 May 2021, at 16:57, john |