Re: Question about upsampling methods

IOhannes m zmölnig <[email protected]>
Newsgroups gmane.comp.multimedia.puredata.general
Message-ID <[email protected]>
On 09/04/2025 16:54, Christof Ressi wrote:
> On 09.04.2025 16:25, IOhannes m zmölnig wrote:
> 
>> but here's my reasoning why I picked zero-padding in the original 
>> implementation:
 >
> Do you mean that you actually implemented the different upsampling 
> methods? Or the upsampling mechnism itself? 

both.
i implemented upsampling, and obviously this required an upsampling 
method. i couldn't decide on one, so i implemented both trivial ones and 
the linear implementation.

> When was this?

indeed it precludes the git history.
i checked, and it even precludes the svn history :-)

according to the original file, this was done on 2001-09-25:

<http://git.puredata.info/cgit/svn2git/trunk.git/tree/pd/src/d_resample.c?id=57045df5fe3ec557e57dc7434ac1a07b5521bffc>


> And what was the initial upsampling method?

it was always zero-padding.
<http://git.puredata.info/cgit/svn2git/trunk.git/tree/pd/src/d_resample.c?id=57045df5fe3ec557e57dc7434ac1a07b5521bffc#n175>


fdmdas
IOhannes

---
[email protected] - the Pure Data mailinglist
https://lists.iem.at/hyperkitty/list/[email protected]/message/YZGCP6NHWBKUQQ3ZL2RXJOCGTZYXO2FB/

To unsubscribe send an email to [email protected] mailing list
UNSUBSCRIBE and account-management -> https://lists.iem.at/
OpenPGP_signature.asc (application/pgp-signature, 840 B)
-----BEGIN PGP SIGNATURE-----
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=f0Ve
-----END PGP SIGNATURE-----
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.