Re: [PD] Porting Max MSP externals to Pure Data

[Ed Kelly via Pd-list]

Hi Jamie,
Yes, I should probably look at that - I can see the limitations of GSL vectors, 
platform-wise.
I think I needed to wrap my head around that before unpicking the algorithms of 
this library though, so I'll be going through a rewrite of the rewrite before 
it becomes a Pd fact!Ed


_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
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On Wednesday, 7 March 2018, 14:22:45 GMT, Jamie Bullock 
 wrote:  
 
 
Hi Ed,
I’d highly recommend porting to Flext rather than Pure Data. Then you have one 
codebase for both Max and Pd with the added benefit of Flext’s higher level C++ 
syntax. https://github.com/g/flext/
Jamie


On 4 Mar 2018, at 14:30, Ed Kelly via Pd-list  wrote:
Hi List,
I'm porting a library of LPC externals from Max/MSP to Pd.I wonder if someone 
could point me towards an example of another MSP external that has successfully 
been ported to Pd - preferably a DSP external that has creation arguments, with 
code for both so I can identify the differences between coding for the two 
platforms.
Cheers,Ed

_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

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Re: [PD] Porting Max MSP externals to Pure Data

[Jamie Bullock]

Hi Ed,

I’d highly recommend porting to Flext rather than Pure Data. Then you have one 
codebase for both Max and Pd with the added benefit of Flext’s higher level C++ 
syntax. https://github.com/g/flext/ 

Jamie


> On 4 Mar 2018, at 14:30, Ed Kelly via Pd-list  wrote:
> 
> Hi List,
> 
> I'm porting a library of LPC externals from Max/MSP to Pd.
> I wonder if someone could point me towards an example of another MSP external 
> that has successfully been ported to Pd - preferably a DSP external that has 
> creation arguments, with code for both so I can identify the differences 
> between coding for the two platforms.
> Cheers,
> Ed
> 
> _-_-_-_-_-_-_-^-_-_-_-_-_-_-_
> 
> For Lone Shark releases, Pure Data software and published Research, go to 
> http://sharktracks.co.uk  
> ___
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Re: [PD] Porting Max MSP externals to Pure Data

[Ed Kelly via Pd-list]

Hey Patrick,
So, I've probably screwed up some stuff here with GSL, but I've been learning a 
hell of a lot with regards to vector operations, and porting the vDSP 
accelerate stuff to GSL. Eventually I suppose it would be good to get rid of 
that, and only use standard libs, except where the FFT stuff is concerned when 
we'll use either d_fft_fftdg.c or d_fft_fftw.c from pd src.
Also, I was reading an article about dereferencing, and I think I might have 
used > where just x-> is needed for gsl_vector_float operations, and I know 
the initialization functions gsl_vector_float_calloc() are wrong sized - I need 
to work out which need to be MAX_ORDER and which to be sized and initialized at 
size = nfft or size = nfft02 (It's 10pm and I'm also trying to master an album!)

Well, it's messy right now. Don't bust a gut on working all of it out, but if 
you can speed me up by spotting a few things it'd be appreciated.
I feel like I've absorbed a couple of megabytes in my head since the weekend.

Cheers,Ed
Enclosed - the original Max code and my incomplete hash of it - but I'm trying 
to port the hardest bit I think...Things will be renamed before a release to 
acknowledge Mark Cartwright, (as in mbc.lpc~ for the original MSP extern) but I 
haven't decided on the namespace options yet.


_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk  

On Tuesday, 6 March 2018, 19:41:16 GMT, Pagano, Patrick 
<patrick.pag...@uconn.edu> wrote:  
 
 #yiv6390742159 #yiv6390742159 -- P 
{margin-top:0;margin-bottom:0;}#yiv6390742159 
Let me know how i can help ed




pp




Patrick Pagano B.S, M.F.A

Assistant Professor in Residence

Digital Media & Design


Web & Interactive Technologies

UCONN ECE Faculty Coordinator

University of Connecticut, Stamford

(352)-226-2016
From: Pd-list <pd-list-boun...@lists.iem.at> on behalf of Simon Iten 
<itensi...@gmail.com>
Sent: Tuesday, March 6, 2018 2:22:54 PM
To: Ed Kelly
Cc: pd list
Subject: Re: [PD] Porting Max MSP externals to Pure Data cool, thanks!

On 6 Mar 2018, at 17:25, Ed Kelly <morph_2...@yahoo.co.uk> wrote:
Encoding and decoding of LPC streams.I know you eagerly anticipate this! I have 
a lot of work to do...Ed


_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and publishedResearch, go to 
http://sharktracks.co.uk 

On Sunday, 4 March 2018, 22:11:46 GMT, Simon Iten <itensi...@gmail.com> wrote:

you are my hero. what will they do exactly? lcp encoding, decoding? lcp-streams 
to audio?
cheers

On 4 Mar 2018, at 15:30, Ed Kelly via Pd-list <pd-list@lists.iem.at> wrote:
Hi List,
I'm porting a library of LPC externals from Max/MSP to Pd.I wonder if someone 
could point me towards an example of another MSP external that has successfully 
been ported to Pd - preferably a DSP external that has creation arguments, with 
code for both so I can identify the differences between coding for the two 
platforms.
Cheers,Ed

_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go 
tohttp://sharktracks.co.uk ___
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  /**
	@file
	mbc.lpc~ - an MSP object shell
	mark cartwright - mcartwri...@gmail.com	

	@ingroup	lpcToolkit	
*/

#include "ext.h"			// standard Max include, always required (except in Jitter)
#include "ext_obex.h"		// required for new style objects
#include "z_dsp.h"			// required for MSP objects
#include 
#include 

#define MAX_ORDER 200
#define NLOG2(x) (ceil(log2(x)))
#define POW2(x) (1 << x);
#define DEFAULT_FS 44100
#define DEFAULT_FRAMERATE 100
#define DEFAULT_V_SIZE 64

// object struct
typedef struct _lpc 
{
	t_pxobject	ob;	// the object itself (t_pxobject in MSP)
	t_float*	l_frame_buff;		//input frame buffer
	t_float*	l_winframe_buff;	//windowed input frame buffer
	t_float*	l_outCoeff_buff;	//coefficient signal
	t_float*	l_outParcor_buff; 	//PARCOR coeffs
	t_float*	l_outError_buff;	//error signal
	t_float*	l_win;//analysis window
	t_float*	l_R;
	double*		l_W;
	double*		l_E;
	double*		l_K;
	double 		l_G;
	double**	l_A;
	double 		l_x1;//last samples of pre-emphasis filter
	float 		l_b1;//pre-emph coefficient
	int 		l_order;			//predictor order
	int 		l_order_max;		//max order according to fs = order * frame_rate
	int 		l_preemph;			//pre-epmhasis filter on/off
	int 		l_frame_rate;		//analysis frame rate
	int 		l_frame_size;		//analysis frame size, where fs = frame_rate * frame_size * 2
	int 		l_hop_size;			//hop_size = frame_size * 2 (b/c of overlap)
	int 		l_inframe_idx;		//current inframe buffer index
	int 		l_outframe_idx;

Re: [PD] Porting Max MSP externals to Pure Data

[Pagano, Patrick]

Let me know how i can help ed


pp


Patrick Pagano B.S, M.F.A

Assistant Professor in Residence

Digital Media & Design

Web & Interactive Technologies

UCONN ECE Faculty Coordinator

University of Connecticut, Stamford

(352)-226-2016


From: Pd-list <pd-list-boun...@lists.iem.at> on behalf of Simon Iten 
<itensi...@gmail.com>
Sent: Tuesday, March 6, 2018 2:22:54 PM
To: Ed Kelly
Cc: pd list
Subject: Re: [PD] Porting Max MSP externals to Pure Data

cool, thanks!
On 6 Mar 2018, at 17:25, Ed Kelly 
<morph_2...@yahoo.co.uk<mailto:morph_2...@yahoo.co.uk>> wrote:

Encoding and decoding of LPC streams.
I know you eagerly anticipate this! I have a lot of work to do...
Ed


_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk<http://sharktracks.co.uk/>


On Sunday, 4 March 2018, 22:11:46 GMT, Simon Iten 
<itensi...@gmail.com<mailto:itensi...@gmail.com>> wrote:


you are my hero. what will they do exactly? lcp encoding, decoding? lcp-streams 
to audio?

cheers

On 4 Mar 2018, at 15:30, Ed Kelly via Pd-list 
<pd-list@lists.iem.at<mailto:pd-list@lists.iem.at>> wrote:

Hi List,

I'm porting a library of LPC externals from Max/MSP to Pd.
I wonder if someone could point me towards an example of another MSP external 
that has successfully been ported to Pd - preferably a DSP external that has 
creation arguments, with code for both so I can identify the differences 
between coding for the two platforms.
Cheers,
Ed

_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk<http://sharktracks.co.uk/>
___
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Re: [PD] Porting Max MSP externals to Pure Data

[Simon Iten]

cool, thanks!
> On 6 Mar 2018, at 17:25, Ed Kelly  wrote:
> 
> Encoding and decoding of LPC streams.
> I know you eagerly anticipate this! I have a lot of work to do...
> Ed
> 
> 
> _-_-_-_-_-_-_-^-_-_-_-_-_-_-_
> 
> For Lone Shark releases, Pure Data software and published Research, go to 
> http://sharktracks.co.uk  
> 
> 
> On Sunday, 4 March 2018, 22:11:46 GMT, Simon Iten  wrote:
> 
> 
> you are my hero. what will they do exactly? lcp encoding, decoding? 
> lcp-streams to audio?
> 
> cheers
> 
>> On 4 Mar 2018, at 15:30, Ed Kelly via Pd-list > > wrote:
>> 
>> Hi List,
>> 
>> I'm porting a library of LPC externals from Max/MSP to Pd.
>> I wonder if someone could point me towards an example of another MSP 
>> external that has successfully been ported to Pd - preferably a DSP external 
>> that has creation arguments, with code for both so I can identify the 
>> differences between coding for the two platforms.
>> Cheers,
>> Ed
>> 
>> _-_-_-_-_-_-_-^-_-_-_-_-_-_-_
>> 
>> For Lone Shark releases, Pure Data software and published Research, go to 
>> http://sharktracks.co.uk  
>> ___
>> Pd-list@lists.iem.at  mailing list
>> UNSUBSCRIBE and account-management -> 
>> https://lists.puredata.info/listinfo/pd-list 
>> 
> 

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Re: [PD] Porting Max MSP externals to Pure Data

[Ed Kelly via Pd-list]

Encoding and decoding of LPC streams.I know you eagerly anticipate this! I have 
a lot of work to do...Ed


_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk  

On Sunday, 4 March 2018, 22:11:46 GMT, Simon Iten  
wrote:  
 
 you are my hero. what will they do exactly? lcp encoding, decoding? 
lcp-streams to audio?
cheers

On 4 Mar 2018, at 15:30, Ed Kelly via Pd-list  wrote:
Hi List,
I'm porting a library of LPC externals from Max/MSP to Pd.I wonder if someone 
could point me towards an example of another MSP external that has successfully 
been ported to Pd - preferably a DSP external that has creation arguments, with 
code for both so I can identify the differences between coding for the two 
platforms.
Cheers,Ed

_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk ___
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Re: [PD] Porting Max MSP externals to Pure Data

[Simon Iten]

you are my hero. what will they do exactly? lcp encoding, decoding? lcp-streams 
to audio?

cheers

> On 4 Mar 2018, at 15:30, Ed Kelly via Pd-list  wrote:
> 
> Hi List,
> 
> I'm porting a library of LPC externals from Max/MSP to Pd.
> I wonder if someone could point me towards an example of another MSP external 
> that has successfully been ported to Pd - preferably a DSP external that has 
> creation arguments, with code for both so I can identify the differences 
> between coding for the two platforms.
> Cheers,
> Ed
> 
> _-_-_-_-_-_-_-^-_-_-_-_-_-_-_
> 
> For Lone Shark releases, Pure Data software and published Research, go to 
> http://sharktracks.co.uk  
> ___
> Pd-list@lists.iem.at mailing list
> UNSUBSCRIBE and account-management -> 
> https://lists.puredata.info/listinfo/pd-list

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Re: [PD] Porting Max MSP externals to Pure Data

[Ed Kelly via Pd-list]

Ah, a book? By Eric Lyons?That's manna from heaven!I have the gigaverb code 
now. I will investigate it thoroughly. Thanks,Ed

_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk  

On Sunday, 4 March 2018, 15:05:09 GMT, Marco Matteo Markidis 
 wrote:  
 
 Hi,
you can take a look of gigaverb~. Moreover there is Eric Lyon's book on writing 
externals in max and pd.Best,Marco
2018-03-04 15:30 GMT+01:00 Ed Kelly via Pd-list :

Hi List,
I'm porting a library of LPC externals from Max/MSP to Pd.I wonder if someone 
could point me towards an example of another MSP external that has successfully 
been ported to Pd - preferably a DSP external that has creation arguments, with 
code for both so I can identify the differences between coding for the two 
platforms.
Cheers,Ed

_-_-_-_-_-_-_-^-_-_-_-_-_-_-_

For Lone Shark releases, Pure Data software and published Research, go to 
http://sharktracks.co.uk 
__ _
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Re: [PD] Porting Max MSP externals to Pure Data

[Marco Matteo Markidis]

Hi,

you can take a look of gigaverb~. Moreover there is Eric Lyon's book on
writing externals in max and pd.
Best,
Marco

2018-03-04 15:30 GMT+01:00 Ed Kelly via Pd-list :

> Hi List,
>
> I'm porting a library of LPC externals from Max/MSP to Pd.
> I wonder if someone could point me towards an example of another MSP
> external that has successfully been ported to Pd - preferably a DSP
> external that has creation arguments, with code for both so I can identify
> the differences between coding for the two platforms.
> Cheers,
> Ed
>
> _-_-_-_-_-_-_-^-_-_-_-_-_-_-_
>
> For *Lone Shark *releases, *Pure Data *software and published *Research*,
> go to http://sharktracks.co.uk
>
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> listinfo/pd-list
>
>


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